| Manufacturer | CB Certificate No. | IECQ Certificate No. | | CB/NAI | Issue Date | Status | |
a | |
| A P E M [France] | |
| | 008-95 | M-IECQ LCIE 05.0005 | | LCIE (France) | 2005/02/06 | Cancelled | |
| AB Connectors Limited [United Kingdom] | |
| | M1070 IECQ | M-IECQ BSI 05.0011 | | BSI (United Kingdom) | 2012/08/01 | Cancelled | |
| | E1275/F | Q-IECQ BSI 05.0098 | | BSI (United Kingdom) | 2005/12/15 | Cancelled | |
| | E1212/F | Q-IECQ BSI 05.0061 | | BSI (United Kingdom) | 2005/04/14 | Cancelled | |
| ABC Taiwan Electronics Corp [Taiwan] | |
| | 50600560 ITL | IECQ-L ULTW 24.0001 | | ULTW (TAIWAN ) | 2024/01/08 | Current | |
| Abtest Limited [United Kingdom] | |
| | T3000 IECQ | IECQ-L BSI 11.0001 | | BSI (United Kingdom) | 2013/12/31 | Cancelled | |
| Acal BFi UK Limited [United Kingdom] | |
| | E002/PA | P-IECQ BSI 05.0002 | | BSI (United Kingdom) | 2010/11/25 | Cancelled | |
| ADDA Corporation [Taiwan] | |
| | T1002 | M-IECQ ECB 04.0003 | | ECB (United States of America) | 2000/02/23 | Cancelled | |
| Advanced Lithium Electrochemistry Co, Lt... [Taiwan] | |
| | 50600020 ITL | IECQ-L ULTW 14.0001 | | ULTW (TAIWAN ) | 2022/12/26 | Current | |
| Advanced Optoelectronic Technology Inc [Taiwan] | |
| | 20005894 ITL | IECQ-L ULTW 20.0003 | | ULTW (TAIWAN ) | 2024/01/22 | Current | |
| Advanced Semiconductor Engineering, Inc ... [Taiwan] | |
| | 20004520 ITL | IECQ-L ULTW 09.0027 | | ULTW (TAIWAN ) | 2023/09/21 | Current | |
| Advances Semiconductor Engineering, Inc ... [Taiwan] | |
| | 20006742 ITL | IECQ-L ULTW 12.0002 | | ULTW (TAIWAN ) | 2023/07/22 | Current | |
| Amphenol Limited [United Kingdom] | |
| | T3001 IECQ | IECQ-L BSI 11.0002 | | BSI (UNITED KINGDOM) | 2012/11/01 | Cancelled | |
| | M1004 IECQ | M-IECQ BSI 04.0007 | | BSI (United Kingdom) | 2012/05/01 | Cancelled | |
| | E1241/F | Q-IECQ BSI 05.0094 | | BSI (United Kingdom) | 2011/05/26 | Cancelled | |
| | E1240/F | Q-IECQ BSI 05.0065 | | BSI (United Kingdom) | 2005/02/14 | Cancelled | |
| | E1204/F | Q-IECQ BSI 05.0068 | | BSI (United Kingdom) | 2012/03/09 | Cancelled | |
| | 1747/F Issue 6 | Q-IECQ BSI 12.0001 | | BSI (UNITED KINGDOM) | 2012/03/09 | Cancelled | |
| ANAMIZU ELECTRONICS IND CO LTD [Japan] | |
| | RCJ-95M-14 | M-IECQ RCJ 04.0001 | | RCJ (JAPAN) | 2010/07/12 | Cancelled | |
| ANHUI TONGFENG ELECTRONICS CO, LTD [China] | |
| | 0015/M | M-IECQ CEP 06.0018 | | CEP (China) | 2005/12/14 | Cancelled | |
| | 0015/M | M-IECQ CEP 08.0005 | | CEP (CHINA) | 2011/12/09 | Cancelled | |
| APEM [France] | |
| | 95-040 | Q-IECQ LCIE 05.0006 | | LCIE (France) | 2002/03/02 | Cancelled | |
| | 95-040 | Q-IECQ LCIE 05.0114 | | LCIE (France) | 2011/03/02 | Cancelled | |
| | 95-039 | Q-IECQ LCIE 05.0005 | | LCIE (France) | 2002/03/02 | Cancelled | |
| | 95-039 | Q-IECQ LCIE 05.0115 | | LCIE (France) | 2011/03/02 | Cancelled | |
| | 95-038 | Q-IECQ LCIE 05.0004 | | LCIE (France) | 2002/03/02 | Cancelled | |
| | 95-038 | Q-IECQ LCIE 05.0112 | | LCIE (France) | 2011/03/02 | Cancelled | |
| | 95-037 | Q-IECQ LCIE 05.0003 | | LCIE (France) | 2002/03/02 | Cancelled | |
| | 95-037 | Q-IECQ LCIE 05.0111 | | LCIE (France) | 2011/03/02 | Cancelled | |
| | 95-036 | Q-IECQ LCIE 05.0002 | | LCIE (France) | 2002/03/02 | Cancelled | |
| | 95-036 | Q-IECQ LCIE 05.0110 | | LCIE (France) | 2011/03/02 | Cancelled | |
| | 95-035 | Q-IECQ LCIE 05.0001 | | LCIE (France) | 2002/03/02 | Cancelled | |
| | 95-035 | Q-IECQ LCIE 05.0109 | | LCIE (France) | 2011/03/02 | Cancelled | |
| | 008-95 | M-IECQ LCIE 07.0024 | | LCIE (France) | 2007/03/14 | Cancelled | |
| | 008-95 | M-IECQ LCIE 05.0001 | | LCIE (France) | 2002/02/07 | Cancelled | |
| | 008-95 | M-IECQ LCIE 08.0001 | | LCIE (France) | 2011/02/04 | Cancelled | |
| API Microelectronics Limited [United Kingdom] | |
| | T3006 IECQ | IECQ-L BSI 09.0001 | | BSI (UNITED KINGDOM) | 2021/04/12 | Cancelled | |
| Arcotronics Limited [United Kingdom] | |
| | M1057 IECQ-CECC | M-IECQ BSI 05.0022 | | BSI (United Kingdom) | 2003/12/15 | Cancelled | |
| | IN/0014/F | Q-IECQ BSI 05.0089 | | BSI (United Kingdom) | 2005/05/31 | Cancelled | |
| | E1155/F | Q-IECQ BSI 05.0088 | | BSI (United Kingdom) | 2005/05/31 | Cancelled | |
| | E1060/F | Q-IECQ BSI 05.0087 | | BSI (United Kingdom) | 2005/05/31 | Cancelled | |
| | E0706/F | Q-IECQ BSI 05.0084 | | BSI (United Kingdom) | 2005/05/31 | Cancelled | |
| | E0466/N | Q-IECQ BSI 05.0086 | | BSI (United Kingdom) | 2005/05/31 | Cancelled | |
| | E0245/F | Q-IECQ BSI 05.0085 | | BSI (United Kingdom) | 2005/05/31 | Cancelled | |
| | D2011 IECQ-CECC | D-IECQ BSI 05.0012 | | BSI (United Kingdom) | 2006/01/16 | Cancelled | |
| Ardentec Corporation [Taiwan] | |
| | 20000171 ITL | IECQ-L ULTW 14.0003 | | ULTW (TAIWAN ) | 2023/12/12 | Current | |
| Aristotle Enterprises Inc [Taiwan] | |
| | T1004 | IECQ-M ULTW 08.0003 | | ULTW (United States of America) | 2000/10/10 | Cancelled | |
| Artetch Circuits Limited [United Kingdom] | |
| | M1002 IECQ | M-IECQ BSI 04.0005 | | BSI (United Kingdom) | 2010/03/19 | Cancelled | |
| | E082/CA | C-IECQ BSI 05.0001 | | BSI (United Kingdom) | 2004/12/07 | Cancelled | |
| Astra Circuits Limited [United Kingdom] | |
| | M1003 IECQ-CECC | M-IECQ BSI 04.0006 | | BSI (United Kingdom) | 2004/12/15 | Cancelled | |
| AT4 WIRELESS [Spain] | |
| | 01-L-96 Is. 12 | IECQ-L LCIE 09.0003 | | LCIE (France) | 2011/10/01 | Cancelled | |
| | 01-L-96 | L-IECQ LCIE 07.0001 | | LCIE (France) | 2008/06/02 | Cancelled | |
| | 01-L-96 | L-IECQ LCIE 07.0001 | | LCIE (France) | 2007/06/11 | Cancelled | |
| ATMEL ROUSSET [France] | |
| | 001-99 | M-IECQ LCIE 05.0019 | | LCIE (France) | 2003/02/13 | Cancelled | |
| | 001-99 | M-IECQ LCIE 06.0003 | | LCIE (France) | 2006/04/24 | Cancelled | |
| | 001-99 | M-IECQ LCIE 06.0001 | | LCIE (France) | 2006/02/13 | Cancelled | |
| Atotech Taiwan Limited, Advanced Technol... [Taiwan] | |
| | 1.72.0119/A | IECQ-L NSAIUS 09.0002-01 | | NSAIUS () | 2014/10/16 | Cancelled | |
| | 1.72.0088/A | IECQ-L NSAIUS 08.0005-02 | | NSAIUS () | 2015/02/08 | Cancelled | |
| | 1.72.0088 | IECQ-L NSAIUS 08.0005 | | NSAIUS () | 2014/10/16 | Cancelled | |
| | 1.72.0088 | IECQ-L NSAIUS 08.0005 | | NSAIUS () | 2015/02/08 | Cancelled | |
| Atotech Taiwan Limited, Chemical Analysi... [Taiwan] | |
| | 1.72.0119 | IECQ-L NSAIUS 09.0002 | | NSAIUS (UNITED STATES) | 2013/12/24 | Cancelled | |
| ATP Electronics Taiwan Inc Reliability T... [Taiwan] | |
| | 50600264 ITL | IECQ-L ULTW 19.0009 | | ULTW (TAIWAN ) | 2022/12/18 | Current | |
| AU Optronics Corp [Taiwan] | |
| | T1136-1 | IECQ-L ULTW 10.0001 | | ULTW (TAIWAN ) | 2011/11/07 | Cancelled | |
| | T1136 | IECQ-L ULTW 08.0002 | | ULTW (TAIWAN ) | 2011/11/07 | Cancelled | |
| austriamicrosystems AG [Austria] | |
| | F 105 IECQ | M-IECQ OVE 04.0006 | | OVE (Austria) | 2008/12/02 | Cancelled | |
| Avnet EMG [United Kingdom] | |
| | D2001 IECQ | D-IECQ BSI 05.0002 | | BSI (United Kingdom) | 2009/08/21 | Cancelled | |
| AVX Czech Republic SRO [Czech Republic] | |
| | IN0015/F | Q-IECQ BSI 05.0058 | | BSI (United Kingdom) | 2009/07/16 | Cancelled | |
| AVX Limited, Coleraine [United Kingdom] | |
| | E0523/N | Q-IECQ BSI 05.0076 | | BSI (United Kingdom) | 2004/07/08 | Cancelled | |
| | E0521/N | Q-IECQ BSI 05.0078 | | BSI (United Kingdom) | 2004/07/08 | Cancelled | |
| AVX Limited, Tantalum Division [United Kingdom] | |
| | IN0012/F | Q-IECQ BSI 05.0059 | | BSI (United Kingdom) | 2004/07/22 | Cancelled | |
| | IN0001/F | Q-IECQ BSI 05.0060 | | BSI (United Kingdom) | 2004/07/22 | Cancelled | |
| | E1245/F | Q-IECQ BSI 05.0054 | | BSI (United Kingdom) | 2004/08/01 | Cancelled | |
| | E0964/F | Q-IECQ BSI 05.0053 | | BSI (United Kingdom) | 2004/07/08 | Cancelled | |
| | E0520/N | Q-IECQ BSI 05.0056 | | BSI (United Kingdom) | 2004/07/08 | Cancelled | |
| | E0031/N | Q-IECQ BSI 05.0057 | | BSI (United Kingdom) | 2004/07/08 | Cancelled | |
| AZEGO AG [Germany] | |
| | 5005724/D/IECQ/DE | D-IECQ VDE 06.0001 | | VDE (Germany) | 2006/10/31 | Cancelled | |
| AZEGO Components AG [Germany] | |
| | 5009688/D/IECQ/DE | D-IECQ VDE 09.0001 | | VDE (GERMANY) | 2011/01/26 | Cancelled | |
| AZNIUM [France] | |
| | 001-07 | M-IECQ LCIE 07.0007 | | LCIE (France) | 2007/02/08 | Cancelled | |
b | |
| BAE Systems Platform Solutions [United States of America] | |
| | US1004-3 | A-IECQ ECCB 06.0004 | | NSAIUS (United States of America) | 2006/06/15 | Cancelled | |
| BARGSTEN Nachfolger GmbH [Germany] | |
| | 24779/05.01 | M-IECQ VDE 05.0015 | | VDE (Germany) | 2009/10/13 | Cancelled | |
| | 2477900/QM/05.01 | M-IECQ VDE 05.0015 | | VDE (Germany) | 2012/11/07 | Cancelled | |
| BD Corporate Preclinical Development and... [United States of America] | |
| | 1.72.0107 | IECQ-L NSAIUS 10.0001 | | NSAIUS () | 2015/08/11 | Cancelled | |
| BHK (Circuits) Limited [United Kingdom] | |
| | M1061 IECQ-CECC | M-IECQ BSI 05.0013 | | BSI (United Kingdom) | 2003/12/15 | Cancelled | |
| | E058/CA | C-IECQ BSI 05.0024 | | BSI (United Kingdom) | 2005/07/26 | Cancelled | |
| Bio Materials Analysis Technology Inc [Taiwan] | |
| | T1107-6 | IECQ-L ULTW 16.0003-06 | | ULTW (TAIWAN ) | 2017/08/31 | Cancelled | |
| Bookham Technology Plc [United Kingdom] | |
| | T3008 IECQ-CECC | L-IECQ BSI 06.0002 | | BSI (United Kingdom) | 2006/09/19 | Cancelled | |
| Brautmeier GmbH [Germany] | |
| | 5001165/M/IECQ-CECC/DE | S-IECQ VDE 05.0001 | | VDE (Germany) | 2015/09/25 | Cancelled | |
| Bubang Techron Co, Ltd [Korea, Republic of] | |
| | 0010/M/IECQ/KR | M-IECQ KTL 06.0001 | | KTL (Korea, Republic of) | 2005/04/20 | Cancelled | |
| | 0010/M/IECQ/KR | M-IECQ KTL 05.0012 | | KTL (Korea, Republic of) | 2002/04/20 | Cancelled | |
c | |
| C E L [France] | |
| | 03-D-93 | D-IECQ LCIE 05.0007 | | LCIE (France) | 2005/06/07 | Cancelled | |
| Cada Industrial Co Ltd, Reliability Test... [Taiwan] | |
| | T1126 | L-IECQ ECCB 07.0001 | | NSAIUS (United States of America) | 2007/05/31 | Cancelled | |
| Campbell Hausfeld Shanghai Office [China] | |
| | T1128 | IECQ-L ULTW 09.0022 | | ULTW (TAIWAN ) | 2007/11/23 | Cancelled | |
| CarUX Technology (Shanghai) Ltd [China] | |
| | 20003332 ITL | IECQ-L ULTW 09.0023-02 | | ULTW (TAIWAN ) | 2023/12/19 | Current | |
| Cathay Consolidated, Inc [Taiwan] | |
| | 20005349 ITL | IECQ-L ULTW 16.0004 | | ULTW (TAIWAN ) | 2022/09/25 | Current | |
| CC Electronics Europe Limited [United Kingdom] | |
| | M1064 IECQ-CECC | M-IECQ BSI 05.0008 | | BSI (United Kingdom) | 2003/12/15 | Cancelled | |
| | E021/CA | C-IECQ BSI 05.0010 | | BSI (United Kingdom) | 2004/03/22 | Cancelled | |
| Celxpert Energy Corporation [Taiwan] | |
| | 20004236 ITL | IECQ-L ULTW 09.0006 | | ULTW (TAIWAN ) | 2023/01/19 | Current | |
| Centra Science Corp [Taiwan] | |
| | T1006 | M-IECQ ECB 04.0007 | | ECB (United States of America) | 1997/08/01 | Cancelled | |
| CETECOM [Spain] | |
| | 01-L-96 | L-IECQ LCIE 05.0003 | | LCIE (France) | 2005/07/04 | Cancelled | |
| CHANGZHOU HUAWEI ELECTRONICS CO, LTD [China] | |
| | 0235/M | M-IECQ CEP 06.0011 | | CEP (China) | 2003/11/24 | Cancelled | |
| Channel Electric Equipment Ltd [United Kingdom] | |
| | D2013 IECQ | D-IECQ BSI 05.0011 | | BSI (United Kingdom) | 2011/07/21 | Cancelled | |
| CHAO ZHOU THREE-CIRCLE (GROUP) CO, LTD [China] | |
| | 0219/M | M-IECQ CEP 06.0011 | | CEP (China) | 2003/11/11 | Cancelled | |
| CHAO ZHOU THREE-CIRCLE (GROUP) [China] | |
| | 0219/M | M-IECQ CEP 06.0027 | | CEP (China) | 2006/12/18 | Cancelled | |
| CHAOZHOU THREE-CIRCLE (GROUP) CO, LTD GU... [China] | |
| | 0219/M | M-IECQ CEP 06.0027 | | CEP (China) | 2015/10/27 | Cancelled | |
| Cheetah Inspection Inc [Taiwan] | |
| | 50600386 ITL | IECQ-L ULTW 21.0002 | | ULTW (TAIWAN ) | 2024/01/08 | Current | |
| CHENGDU TIEDA ELECTRONIC CO, LTD [China] | |
| | 0080/M | M-IECQ CEP 06.0015 | | CEP (China) | 2003/11/24 | Cancelled | |
| | 0080/M | M-IECQ CEP 07.0004 | | CEP (China) | 2009/03/05 | Cancelled | |
| | 0080/M | M-IECQ CEP 07.0004 | | CEP (China) | 2013/07/11 | Cancelled | |
| CHENGDU XUGUANG ELECTRONICS CO, LTD [China] | |
| | 0249/M | M-IECQ CEP 06.0012 | | CEP (China) | 2003/11/11 | Cancelled | |
| Chenrol Electric Wire & Cable Co, Ltd [Taiwan] | |
| | T1007 | M-IECQ ECB 04.0008 | | ULTW (United States of America) | 1997/07/23 | Cancelled | |
| Chi Mei Corporation Specialty Chemicals ... [Taiwan] | |
| | 50600322 ITL | IECQ-L ULTW 19.0005 | | ULTW (TAIWAN ) | 2022/09/01 | Current | |
| Chi Yuan Plastic Industrial Co, Ltd [Taiwan] | |
| | T1008 | M-IECQ ECB 04.0009 | | ULTW (United States of America) | 1998/06/23 | Cancelled | |
| Chin-Poon Industrial Co, Ltd Taoyuan Pla... [Taiwan] | |
| | 20000513 ITL | IECQ-L ULTW 19.0006 | | ULTW (TAIWAN ) | 2022/10/28 | Current | |
| CHIPIDEA MICROELECTRONICA SA [Portugal] | |
| | 001-03 | M-IECQ LCIE 05.0018 | | LCIE (France) | 2003/07/03 | Cancelled | |
| | 001-03 | M-IECQ LCIE 06.0002 | | LCIE (France) | 2006/02/17 | Cancelled | |
| | 001-03 | M-IECQ LCIE 07.0023 | | LCIE (France) | 2007/03/14 | Cancelled | |
| | 001-03 | M-IECQ LCIE 05.0021 | | LCIE (France) | 2005/09/12 | Cancelled | |
| | 001-03 | M-IECQ LCIE 05.0023 | | LCIE (France) | 2005/12/07 | Cancelled | |
| CHIPIDEA MICROELECTRONICA [Portugal] | |
| | 001-03 | M-IECQ LCIE 06.0005 | | LCIE (France) | 2006/07/03 | Cancelled | |
| CHONGQING SICHUAN INSTRUMENT MICROCIRCUI... [China] | |
| | 0063/M | M-IECQ CEP 06.0016 | | CEP (China) | 2004/11/23 | Cancelled | |
| Cinch Connectors Limited [United Kingdom] | |
| | M1059 IECQ-CECC | M-IECQ BSI 05.0021 | | BSI (United Kingdom) | 2003/12/15 | Cancelled | |
| Circast Electronics Limited [United Kingdom] | |
| | M1063 IECQ-CECC | M-IECQ BSI 05.0014 | | BSI (United Kingdom) | 2003/12/15 | Cancelled | |
| | E003/CA | C-IECQ BSI 05.0003 | | BSI (United Kingdom) | 2005/03/01 | Cancelled | |
| | 019/QCA | C-IECQ BSI 05.0004 | | BSI (United Kingdom) | 2007/05/10 | Cancelled | |
| CIRETEC [France] | |
| | 94-004 | Q-IECQ LCIE 05.0026 | | LCIE (France) | 2004/02/17 | Cancelled | |
| | 94-004 | C-IECQ LCIE 07.0001 | | LCIE (France) | 2007/02/17 | Cancelled | |
| | 013-92 | M-IECQ LCIE 05.0011 | | LCIE (France) | 2005/06/07 | Cancelled | |
| | 013-92 | M-IECQ LCIE 07.0006 | | LCIE (France) | 2010/01/30 | Cancelled | |
| CKT Rubber Co, Ltd [Taiwan] | |
| | T1118 | M-IECQ ECCB 06.0001 | | NSAIUS (United States of America) | 2006/02/08 | Cancelled | |
| | T1118 | M-IECQ ECCB 06.0001 | | NSAIUS (United States of America) | 2006/02/08 | Cancelled | |
| Compagnie Deutsch Orléans [France] | |
| | 005-93 | M-IECQ LCIE 05.0020 | | LCIE (France) | 2005/03/04 | Cancelled | |
| Compstock Electronics Ltd [United Kingdom] | |
| | D2007 IECQ-CECC | D-IECQ BSI 05.0005 | | BSI (United Kingdom) | 2003/12/15 | Cancelled | |
| CONDENSATEURS SIC-SAFCO [France] | |
| | 001-94 | M-IECQ LCIE 07.0025 | | LCIE (France) | 2007/06/11 | Cancelled | |
| CONDENSATEURS SIC SAFCO [France] | |
| | 001-94 | M-IECQ LCIE 07.0008 | | LCIE (France) | 2007/03/14 | Cancelled | |
| | 001-94 | M-IECQ LCIE 06.0007 | | LCIE (France) | 2006/06/15 | Cancelled | |
| | 001-94 | M-IECQ LCIE 05.0010 | | LCIE (France) | 2003/12/16 | Cancelled | |
| CONTAG GmbH [Germany] | |
| | 5003162/M/IECQ/09.05 | M-IECQ VDE 05.0038 | | VDE (Germany) | 2005/09/30 | Cancelled | |
| COPEL [France] | |
| | 03-D-92 | D-IECQ LCIE 05.0008 | | LCIE (France) | 2003/12/16 | Cancelled | |
| | 03-D-92 | D-IECQ LCIE 07.0005 | | LCIE (France) | 2007/03/22 | Cancelled | |
| | 03-D-92 | D-IECQ LCIE 06.0005 | | LCIE (France) | 2006/10/02 | Cancelled | |
| | 03-D-92 | D-IECQ LCIE 05.0012 | | LCIE (France) | 2005/04/21 | Cancelled | |
| CROSS MODULE TECH CO [Taiwan] | |
| | 50600584 ITL | IECQ-L ULTW 24.0002 | | ULTW (TAIWAN ) | 2024/03/11 | Current | |
| CROWNPO TECHNOLOGY INC [Taiwan] | |
| | T1036 | M-IECQ ECB 04.0036 | | ULTW (United States of America) | 1998/09/16 | Cancelled | |
| CTI-VESP Technology Corporation ShangHai... [China] | |
| | 50600588 ITL | IECQ-L ULTW 17.0001-02 | | ULTW (TAIWAN ) | 2024/02/10 | Current | |
| | 50600165 ITL | IECQ-L ULTW 17.0001-01 | | ULTW (TAIWAN ) | 2024/02/10 | Current | |
| CTI-VESP Technology Corporation [China] | |
| | 50600378 ITL | IECQ-L ULTW 21.0001 | | ULTW (TAIWAN ) | 2024/01/14 | Current | |
| Current Electronic Technology (Heyuan) C... [China] | |
| | T1147 | IECQ-L ULTW 11.0005 | | ULTW (Taiwan ) | 2011/08/08 | Cancelled | |
| Cyntec Co, Ltd [Taiwan] | |
| | T1011 | M-IECQ ECB 04.0012 | | ULTW (United States of America) | 1997/03/06 | Cancelled | |
d | |
| D J Circuits Limited [United Kingdom] | |
| | M1006 IECQ-CECC | M-IECQ BSI 04.0009 | | BSI (United Kingdom) | 2003/12/15 | Cancelled | |
| | E073/CA | C-IECQ BSI 05.0002 | | BSI (United Kingdom) | 2004/11/09 | Cancelled | |
| DAEWOO ELECTRONIC COMPONENTS Co, Ltd [Korea, Republic of] | |
| | 0009/C/IECQ/KR | Q-IECQ KTL 06.0001 | | KTL (Korea, Republic of) | 2006/06/16 | Cancelled | |
| | 0003/C/IECQ/KR | Q-IECQ KTL 06.0002 | | KTL (Korea, Republic of) | 2006/06/16 | Cancelled | |
| | 0002/M/IECQ/KR | M-IECQ KTL 06.0006 | | KTL (Korea, Republic of) | 2006/06/16 | Cancelled | |
| | 0002/C/IECQ/KR | Q-IECQ KTL 06.0003 | | KTL (Korea, Republic of) | 2006/06/16 | Cancelled | |
| | 0002 / M / IECQ / KR | M-IECQ KTL 06.0007 | | KTL (Korea, Republic of) | 2006/09/13 | Cancelled | |
| Darfon Electronics Corp Reliability Test... [Taiwan] | |
| | T1144 | IECQ-L ULTW 10.0002 | | ULTW (TAIWAN ) | 2010/11/11 | Cancelled | |
| DDi Marlow Ltd [United Kingdom] | |
| | M1066 IECQ-CECC | M-IECQ BSI 05.0009 | | BSI (United Kingdom) | 2003/12/15 | Cancelled | |
| DEKRA IST Reliability Services Inc [Taiwan] | |
| | DEKRA-T4-001 | IECQ-L DEKRA 16.0001 | | DEKRA (NETHERLANDS) | 2016/08/16 | Cancelled | |
| DEKRA IST Reliability Services Limited K... [China] | |
| | DEKRA-C12-001 | IECQ-L DEKRA 17.0003-01 | | DEKRA (NETHERLANDS) | 2017/11/15 | Cancelled | |
| | DEKRA-C09-001 | IECQ-L DEKRA 17.0003 | | DEKRA (NETHERLANDS) | 2017/11/15 | Cancelled | |
| DEKRA IST Reliability Services Limited S... [China] | |
| | DEKRA-C8-001 | IECQ-L DEKRA 17.0002 | | DEKRA (NETHERLANDS) | 2017/06/09 | Cancelled | |
| DEKRA IST Reliability Services Limited [China] | |
| | 1.72.0124 | IECQ-L NSAIUS 16.0001 | | NSAIUS (UNITED STATES) | 2016/06/02 | Cancelled | |
| DEL La Distribution Electronique SAS [France] | |
| | 02-D-92 | D-IECQ LCIE 05.0009 | | LCIE (France) | 2005/06/07 | Cancelled | |
| | 02-D-92 | D-IECQ LCIE 07.0003 | | LCIE (France) | 2010/12/20 | Cancelled | |
| DELTRON FRANCE [France] | |
| | 02-D-00 | D-IECQ LCIE 05.0002 | | LCIE (France) | 2004/10/25 | Cancelled | |
| DIELEKTRA GmbH [Germany] | |
| | 16626/T/IECQ/DE | L-IECQ VDE 05.0001 | | VDE (Germany) | 2005/07/05 | Cancelled | |
| DIELEKTRA Technologie GmbH [Germany] | |
| | HA131562 | Q-IECQ VDE 05.0006 | | VDE (Germany) | 2000/09/21 | Cancelled | |
| | 16626/M/IECQ/DE | M-IECQ VDE 05.0005 | | VDE (Germany) | 2005/07/05 | Cancelled | |
| DIRECT SAS [France] | |
| | 02-D-95 | D-IECQ LCIE 07.0006 | | LCIE (France) | 2012/07/29 | Cancelled | |
| | 02-D-95 | D-IECQ LCIE 07.0006 | | LCIE (France) | 2009/07/29 | Cancelled | |
| DIRECT [France] | |
| | 02-D-95 | D-IECQ LCIE 06.0003 | | LCIE (France) | 2006/07/28 | Cancelled | |
| | 02-D-95 | D-IECQ LCIE 05.0005 | | LCIE (France) | 2004/03/12 | Cancelled | |
| Discovery High Technology Co, Ltd [Taiwan] | |
| | T1119 | M-IECQ ECCB 06.0002 | | NSAIUS (United States of America) | 2006/02/08 | Cancelled | |
| Dongguan Littelfuse Electronics Co Ltd [China] | |
| | IN0022/N | Q-IECQ BSI 08.0001 | | BSI (GB) | 2009/04/08 | Cancelled | |
| DTCIRCUIT TECHNOLOGY CO LTD [Japan] | |
| | 92M03 | M-IECQ RCJ 04.0003 | | RCJ (JAPAN) | 2003/09/05 | Cancelled | |
| Dynapack Electronic Technology (SuZhou) ... [China] | |
| | 20004237 ITL | IECQ-L ULTW 09.0004-01 | | ULTW (TAIWAN ) | 2024/04/16 | Current | |
| Dynapack International Technology Corp [Taiwan] | |
| | 20003976 ITL | IECQ-L ULTW 09.0004 | | ULTW (TAIWAN ) | 2024/03/04 | Current | |
e | |
| EASTERN COMPANY LTD [Japan] | |
| | 95M21 | M-IECQ RCJ 04.0004 | | RCJ (JAPAN) | 2004/09/06 | Cancelled | |
| ELNA CO LTD [Japan] | |
| | RCJ-94M-17 | M-IECQ RCJ 04.0006 | | RCJ (JAPAN) | 2012/06/11 | Cancelled | |
| ELNA MATSUMOTO CO LTD [Japan] | |
| | RCJ-00M-02 | M-IECQ RCJ 04.0007 | | RCJ (JAPAN) | 2006/11/10 | Cancelled | |
| ELNA TOUHOKU CO LTD [Japan] | |
| | 96M16 | M-IECQ RCJ 04.0009 | | RCJ (JAPAN) | 2005/12/15 | Cancelled | |
| | 00M01 | M-IECQ RCJ 04.0008 | | RCJ (JAPAN) | 2003/10/01 | Cancelled | |
| Environmental Test Services Limited [United Kingdom] | |
| | T3002 IECQ | IECQ-L BSI 11.0003 | | BSI (UNITED KINGDOM) | 2019/05/24 | Cancelled | |
| EPCOS OHG [Austria] | |
| | HA128960 | Q-IECQ VDE 05.0027 | | VDE (Germany) | 2000/05/17 | Cancelled | |
| | HA128955 | Q-IECQ VDE 05.0028 | | VDE (Germany) | 2009/06/10 | Cancelled | |
| | HA128911 | Q-IECQ VDE 05.0026 | | VDE (Germany) | 2000/05/17 | Cancelled | |
| | F 101 IECQ-CECC | M-IECQ OVE 04.0002 | | OVE (Austria) | 2009/05/08 | Cancelled | |
| | 40027567 | Q-IECQ VDE 09.0001 | | VDE (GERMANY) | 2009/06/09 | Cancelled | |
| | 40002279 | Q-IECQ VDE 05.0034 | | VDE (Germany) | 2007/07/12 | Cancelled | |
| | 101-QA-9 IECQ | Q-IECQ OVE 09.0001 | | OVE (AUSTRIA) | 2009/05/08 | Cancelled | |
| | 101-QA-8 IECQ | Q-IECQ OVE 04.0001 | | OVE (Austria) | 2009/05/28 | Cancelled | |
| | 101-QA-7 IECQ | Q-IECQ OVE 04.0007 | | OVE (Austria) | 2006/05/10 | Cancelled | |
| | 101-QA-6 IECQ | Q-IECQ OVE 04.0006 | | OVE (Austria) | 2005/04/13 | Cancelled | |
| | 101-QA-4 IECQ | Q-IECQ OVE 04.0004 | | OVE (Austria) | 2008/10/31 | Cancelled | |
| EPCOS OHG [China] | |
| | F 101-3 IECQ-CECC | M-IECQ OVE 04.0004 | | OVE (Austria) | 2004/12/22 | Cancelled | |
| EPCOS OHG [Czech Republic] | |
| | F 101-5 IECQ | M-IECQ OVE 06.0001 | | OVE (Austria) | 2006/02/13 | Cancelled | |
| EPCOS OHG [Hungary] | |
| | F 101-4 IECQ-CECC | M-IECQ OVE 04.0005 | | OVE (Austria) | 2004/12/22 | Cancelled | |
| EPCOS OHG [Indonesia] | |
| | F 101-2 IECQ-CECC | M-IECQ OVE 04.0003 | | OVE (Austria) | 2004/12/22 | Cancelled | |
| EPCOS PTE Ltd [Indonesia] | |
| | HA128955 | Q-IECQ VDE 05.0023 | | VDE (Germany) | 2000/05/17 | Cancelled | |
| EPCOS (Zhuhai FTZ) Co Ltd [China] | |
| | HA128911 | Q-IECQ VDE 05.0025 | | VDE (Germany) | 2005/05/17 | Cancelled | |
| | HA128911 | Q-IECQ VDE 05.0025 | | VDE (Germany) | 2000/05/17 | Cancelled | |
| EPCOS (Zhuhai FTZ) Co, Ltd [China] | |
| | HA136242 | Q-IECQ VDE 05.0029 | | VDE (Germany) | 2001/05/30 | Cancelled | |
| | HA128955 | Q-IECQ VDE 05.0028 | | VDE (Germany) | 2009/06/16 | Cancelled | |
| EPISTAR Corporation [Taiwan] | |
| | T1012-3 | M-IECQ ECCB 08.0001 | | ULTW (United States of America) | 2007/12/24 | Cancelled | |
| | T1012-2 | M-IECQ ECCB 07.0001 | | ULTW (United States of America) | 2007/01/26 | Cancelled | |
| | T1012-1 | M-IECQ ECB 04.0013 | | ULTW (United States of America) | 1999/05/24 | Cancelled | |
| ERNI Elektroapparate GmbH [Germany] | |
| | | M-IECQ VDE 05.0028 | | VDE (Germany) | 2003/12/15 | Cancelled | |
| | 6078/02.93 | M-IECQ VDE 05.0029 | | VDE (Germany) | 2003/12/15 | Cancelled | |
| ESPEC CORP Test Consulting Service Headq... [Japan] | |
| | JQAQ0001-004-T | IECQ-L JQAJP 13.0001-03 | | JQAJP (JAPAN) | 2017/09/15 | Cancelled | |
| | JQAQ0001-003-T | IECQ-L JQAJP 13.0001-02 | | JQAJP (JAPAN) | 2017/09/15 | Cancelled | |
| | JQAQ0001-002-T | IECQ-L JQAJP 13.0001-01 | | JQAJP (JAPAN) | 2017/09/15 | Cancelled | |
| | JQAQ0001-001-T | IECQ-L JQAJP 13.0001 | | JQAJP (JAPAN) | 2017/09/15 | Cancelled | |
| ESPEC ENVIRONMENTAL TEST TECHNOLOGY CENT... [Japan] | |
| | RCJ-93T-01 | L-IECQ RCJ 05.0004 | | RCJ (JAPAN) | 2008/05/16 | Cancelled | |
| | RCJ-87T-01-04 | IECQ-L RCJ 10.0005 | | RCJ (JAPAN) | 2010/09/13 | Cancelled | |
| | 93T01 | L-IECQ RCJ 05.0004 | | RCJ (JAPAN) | 2005/05/20 | Cancelled | |
| EUROFARAD SAS [France] | |
| | 001-96 | M-IECQ LCIE 07.0003 | | LCIE (France) | 2006/12/15 | Cancelled | |
| EUROFARAD [France] | |
| | 96-025 | Q-IECQ LCIE 06.0042 | | LCIE (France) | 2009/10/24 | Cancelled | |
| | 96-025 | Q-IECQ LCIE 05.0042 | | LCIE (France) | 2003/10/24 | Cancelled | |
| | 93-014 | Q-IECQ LCIE 06.0007 | | LCIE (France) | 2005/12/18 | Cancelled | |
| | 93-014 | Q-IECQ LCIE 05.0045 | | LCIE (France) | 2002/12/18 | Cancelled | |
| | 93-013 | Q-IECQ LCIE 07.0008 | | LCIE (France) | 2007/03/19 | Cancelled | |
| | 93-013 | Q-IECQ LCIE 04.0001 | | LCIE (France) | 2004/11/28 | Cancelled | |
| | 92-087 | Q-IECQ LCIE 05.0044 | | LCIE (France) | 2002/12/18 | Cancelled | |
| | 92-086 | Q-IECQ LCIE 05.0043 | | LCIE (France) | 2002/12/18 | Cancelled | |
| | 82-168 | Q-IECQ LCIE 05.0039 | | LCIE (France) | 2002/12/10 | Cancelled | |
| | 82-166 | Q-IECQ LCIE 05.0038 | | LCIE (France) | 2002/12/10 | Cancelled | |
| | 82-087 | Q-IECQ LCIE 05.0037 | | LCIE (France) | 2002/12/10 | Cancelled | |
| | 82-087 | Q-IECQ LCIE 06.0002 | | LCIE (France) | 2005/12/10 | Cancelled | |
| | 82-086 | Q-IECQ LCIE 06.0001 | | LCIE (France) | 2005/12/10 | Cancelled | |
| | 82-086 | Q-IECQ LCIE 05.0036 | | LCIE (France) | 2002/12/10 | Cancelled | |
| | 82-032 | Q-IECQ LCIE 07.0005 | | LCIE (France) | 2010/02/17 | Cancelled | |
| | 82-032 | Q-IECQ LCIE 05.0025 | | LCIE (France) | 2004/02/17 | Cancelled | |
| | 07-002 | Q-IECQ LCIE 07.0021 | | LCIE (France) | 2007/10/22 | Cancelled | |
| | 005-96 | M-IECQ LCIE 07.0004 | | LCIE (France) | 2006/12/15 | Cancelled | |
| | 005-96 | M-IECQ LCIE 05.0007 | | LCIE (France) | 2004/02/17 | Cancelled | |
| | 005-96 | M-IECQ LCIE 07.0011 | | LCIE (France) | 2009/12/15 | Cancelled | |
| | 001-96 | M-IECQ LCIE 04.0001 | | LCIE (France) | 2004/11/08 | Cancelled | |
| | 001-96 | M-IECQ LCIE 07.0010 | | LCIE (France) | 2009/12/15 | Cancelled | |
| | 00-007 | Q-IECQ LCIE 06.0043 | | LCIE (France) | 2009/10/24 | Cancelled | |
| | 00-007 | Q-IECQ LCIE 05.0041 | | LCIE (France) | 2003/10/24 | Cancelled | |
| | 00-006 | Q-IECQ LCIE 06.0026 | | LCIE (France) | 2006/05/19 | Cancelled | |
| | 00-006 | Q-IECQ LCIE 05.0035 | | LCIE (France) | 2003/05/19 | Cancelled | |
| | 00-005 | Q-IECQ LCIE 05.0034 | | LCIE (France) | 2003/05/19 | Cancelled | |
| | 00-005 | Q-IECQ LCIE 06.0016 | | LCIE (France) | 2006/05/19 | Cancelled | |
| | 00-004 | Q-IECQ LCIE 06.0044 | | LCIE (France) | 2006/10/24 | Cancelled | |
| | 00-004 | Q-IECQ LCIE 05.0040 | | LCIE (France) | 2003/10/24 | Cancelled | |
| | 00-003 | Q-IECQ LCIE 06.0015 | | LCIE (France) | 2006/05/19 | Cancelled | |
| | 00-003 | Q-IECQ LCIE 05.0033 | | LCIE (France) | 2003/05/19 | Cancelled | |
| | 00-002 | Q-IECQ LCIE 06.0014 | | LCIE (France) | 2006/05/19 | Cancelled | |
| | 00-002 | Q-IECQ LCIE 05.0032 | | LCIE (France) | 2003/05/19 | Cancelled | |
| Eutech Microelectronics Inc [Taiwan] | |
| | T1106 | M-IECQ ECB 04.0089 | | ECB (United States of America) | 2004/10/02 | Cancelled | |
| Evans Materials Technology (Shanghai) Co... [China] | |
| | IECQ-L 2009.010 | IECQ-L CEP 09.0001 | | CEP (CHINA) | 2018/09/25 | Cancelled | |
| Everbiz Industrial Co, Ltd [Taiwan] | |
| | 50600581 ITL | IECQ-L ULTW 24.0004 | | ULTW (TAIWAN ) | 2024/07/04 | Current | |
| EVOX RIFA [Finland] | |
| | 24043/11.2000 | M-IECQ VDE 05.0019 | | VDE (Germany) | 2003/10/09 | Cancelled | |
| Excellence Optoelectronics Inc Environme... [Taiwan] | |
| | 50600443 ITL | IECQ-L ULTW 22.0001 | | ULTW (TAIWAN ) | 2022/01/06 | Current | |
| eXception PCB Limited [United Kingdom] | |
| | M1051 IECQ | M-IECQ BSI 05.0018 | | BSI (United Kingdom) | 2013/01/01 | Cancelled | |
| | E063/CA | C-IECQ BSI 05.0015 | | BSI (United Kingdom) | 2013/01/01 | Cancelled | |
| Exito Electronic Co, Ltd [Taiwan] | |
| | T1015-1 | M-IECQ ECB 04.0015 | | ECB (United States of America) | 2002/07/29 | Cancelled | |
f | |
| Fancy Nancys [United States of America] | |
| | 1234567 | IECQ-L NSAIUS 15.0001 | | NSAIUS () | 2015/05/07 | Cancelled | |
| Faraday Technology Corp [Taiwan] | |
| | T1016 | M-IECQ ECB 04.0016 | | ULTW (United States of America) | 1997/08/13 | Cancelled | |
| FICO Precision Industry Co, Ltd [Taiwan] | |
| | T1098 | S-IECQ ECB 04.0001 | | ULTW (United States of America) | 2000/01/03 | Cancelled | |
| FIRADEC [France] | |
| | 97-025 | Q-IECQ LCIE 05.0052 | | LCIE (France) | 2003/07/09 | Cancelled | |
| | 97-019 | Q-IECQ LCIE 05.0054 | | LCIE (France) | 2003/05/19 | Cancelled | |
| | 97-018 | Q-IECQ LCIE 05.0055 | | LCIE (France) | 2003/05/19 | Cancelled | |
| | 97-017 | Q-IECQ LCIE 05.0056 | | LCIE (France) | 2003/05/19 | Cancelled | |
| | 97-016 | Q-IECQ LCIE 05.0057 | | LCIE (France) | 2003/05/19 | Cancelled | |
| | 97-015 | Q-IECQ LCIE 05.0058 | | LCIE (France) | 2003/05/19 | Cancelled | |
| | 97-014 | Q-IECQ LCIE 05.0059 | | LCIE (France) | 2003/05/19 | Cancelled | |
| | 97-012 | Q-IECQ LCIE 05.0060 | | LCIE (France) | 2003/05/19 | Cancelled | |
| | 93-062 | Q-IECQ LCIE 05.0051 | | LCIE (France) | 2003/03/12 | Cancelled | |
| | 89-035 | Q-IECQ LCIE 05.0053 | | LCIE (France) | 2003/05/19 | Cancelled | |
| | 05-001 | Q-IECQ LCIE 05.0108 | | LCIE (France) | 2005/03/03 | Cancelled | |
| | 015-93 | M-IECQ LCIE 05.0015 | | LCIE (France) | 2003/10/17 | Cancelled | |
| | 015-93 | M-IECQ LCIE 06.0008 | | LCIE (France) | 2006/05/12 | Cancelled | |
| | 015-93 | M-IECQ LCIE 07.0012 | | LCIE (France) | 2007/03/14 | Cancelled | |
| | 015-93 | M-IECQ LCIE 06.0008 | | LCIE (France) | 2009/05/14 | Cancelled | |
| | 015-93 | M-IECQ LCIE 07.0028 | | LCIE (France) | 2007/12/07 | Cancelled | |
| | 00-001 | Q-IECQ LCIE 05.0061 | | LCIE (France) | 2003/06/06 | Cancelled | |
| First Components GmbH [Germany] | |
| | 5005724/D/IECQ/DE | D-IECQ VDE 06.0002 | | VDE (Germany) | 2006/10/31 | Cancelled | |
| First Components [Germany] | |
| | 5007592/QM/10.06 | D-IECQ VDE 08.0001 | | VDE (Germany) | 2006/10/31 | Cancelled | |
| Flex-Ability Limited [United Kingdom] | |
| | M1012 IECQ | M-IECQ BSI 06.0008 | | BSI (United Kingdom) | 2009/09/21 | Cancelled | |
| | 023/QCA | C-IECQ BSI 06.0001 | | BSI (United Kingdom) | 2006/04/24 | Cancelled | |
| Flexible Technology Limited [United Kingdom] | |
| | M1013 IECQ-CECC | M-IECQ BSI 04.0014 | | BSI (United Kingdom) | 2003/12/15 | Cancelled | |
| | E037/CA | C-IECQ BSI 05.0009 | | BSI (United Kingdom) | 2006/07/18 | Cancelled | |
| | 012/QCA | C-IECQ BSI 05.0014 | | BSI (United Kingdom) | 2006/07/18 | Cancelled | |
| Flint Distribution Limited [United Kingdom] | |
| | D2003 IECQ | D-IECQ BSI 05.0003 | | BSI (United Kingdom) | 2010/01/15 | Cancelled | |
| Formosa Advanced Technologies Co, Ltd (R... [Taiwan] | |
| | 505499 ITL | IECQ-L ULTW 13.0002 | | ULTW (TAIWAN ) | 2022/07/12 | Current | |
| Formosa Advanced Technologies Co, Ltd [Taiwan] | |
| | T1018 | M-IECQ ECB 04.0018 | | ULTW (United States of America) | 1998/03/17 | Cancelled | |
| | 20000991 ITL | IECQ-L ULTW 09.0014 | | ULTW (TAIWAN ) | 2023/05/17 | Current | |
| Fortune Technologies (Shanghai) Co, Ltd [China] | |
| | T1140 | IECQ-L ULTW 09.0026 | | ULTW (TAIWAN ) | 2009/10/25 | Cancelled | |
| Foshan Innolux Optoelectronics Ltd Relia... [China] | |
| | 20005896 ITL | IECQ-L ULTW 09.0023-05 | | ULTW (TAIWAN ) | 2023/12/19 | Current | |
| FOSHAN SHUNDE FENGMING ELECTRONIC SCIENC... [China] | |
| | 0326/M | M-IECQ CEP 07.0012 | | CEP (China) | 2007/11/02 | Cancelled | |
| FUJIHEN CO LTD [Japan] | |
| | RCJ-95M-23 | M-IECQ RCJ 04.0010 | | RCJ (JAPAN) | 2010/11/08 | Cancelled | |
| | RCJ-95M-23 | M-IECQ RCJ 04.0010 | | RCJ (JAPAN) | 2009/11/16 | Cancelled | |
| FUJITSU COMPONENT LIMITED [Japan] | |
| | RCJ-92M-14 | M-IECQ RCJ 04.0011 | | RCJ (JAPAN) | 2007/12/21 | Cancelled | |
| | 03M01 | M-IECQ RCJ 04.0012 | | RCJ (JAPAN) | 2006/05/19 | Cancelled | |
| Fulltronic Corporation [Taiwan] | |
| | T1020 | M-IECQ ECB 04.0019 | | ULTW (United States of America) | 2000/06/12 | Cancelled | |
g | |
| GEM Terminal Ind Co, Ltd [Taiwan] | |
| | T1022 | M-IECQ ECB 04.0022 | | ULTW (United States of America) | 1998/06/23 | Cancelled | |
| Geneva Laboratories [United States of America] | |
| | 1.72.0104/A | IECQ-L NSAIUS 08.0001-01 | | NSAIUS () | 2015/08/03 | Cancelled | |
| | 1.72.0104 | IECQ-L NSAIUS 08.0001 | | NSAIUS () | 2015/08/03 | Cancelled | |
| GIOUX-ADRET [France] | |
| | 01-D-04 | D-IECQ LCIE 05.0011 | | LCIE (France) | 2005/04/25 | Cancelled | |
| GIOUX ADRET [France] | |
| | 01-D-04 | D-IECQ LCIE 05.0003 | | LCIE (France) | 2004/06/14 | Cancelled | |
| Glenair Italia SpA [Italy] | |
| | T598257 IECQ | IECQ-L BSI 13.0001 | | BSI (UNITED KINGDOM) | 2022/10/28 | Cancelled | |
| Glenair UK Limited [United Kingdom] | |
| | T3003 IECQ | IECQ-L BSI 09.0003 | | BSI (UNITED KINGDOM) | 2021/11/15 | Cancelled | |
| | M1068 IECQ-CECC | M-IECQ BSI 05.0026 | | BSI (United Kingdom) | 2004/07/06 | Cancelled | |
| | E1278/F | Q-IECQ BSI 06.0058 | | BSI (United Kingdom) | 2006/07/04 | Cancelled | |
| | E089/CA | C-IECQ BSI 08.0001 | | BSI (UNITED KINGDOM) | 2008/09/08 | Cancelled | |
| GlobalWafers Co, Ltd Precision Machinery... [Taiwan] | |
| | 50600157 ITL | IECQ-L ULTW 17.0002 | | ULTW (TAIWAN ) | 2020/03/03 | Cancelled | |
| Glorytech Technology Co, Ltd [Taiwan] | |
| | T1111 | M-IECQ ECB 04.0092 | | ULTW (United States of America) | 2004/09/21 | Cancelled | |
| Golden-Tech Technologies Inc [Taiwan] | |
| | 20004039 ITL | IECQ-L ULTW 09.0015 | | ULTW (TAIWAN ) | 2023/06/16 | Current | |
| GSPK Circuits Limited [United Kingdom] | |
| | M1015 IECQ-CECC | M-IECQ BSI 04.0016 | | BSI (United Kingdom) | 2003/12/15 | Cancelled | |
| | E087/CA | C-IECQ BSI 05.0005 | | BSI (United Kingdom) | 2004/05/14 | Cancelled | |
| GUIZHOU XUNDA ELECTRONIC COMPONENT CO, L... [China] | |
| | 0223/M | M-IECQ CEP 06.0013 | | CEP (China) | 2004/05/11 | Cancelled | |
| | 0223/M | M-IECQ CEP 07.0007 | | CEP (China) | 2007/09/03 | Cancelled | |
| | 0223/M | M-IECQ CEP 07.0007 | | CEP (China) | 2007/09/03 | Cancelled | |
h | |
| Hangzhou Lorom Electric & Cable Co, Ltd ... [China] | |
| | T1153-1 | IECQ-L ULTW 13.0003-01 | | ULTW (TAIWAN ) | 2013/12/09 | Cancelled | |
| | T1153 | IECQ-L ULTW 13.0003 | | ULTW (TAIWAN ) | 2016/12/09 | Cancelled | |
| Hangzhou Lorom Precision Co, Ltd Quality... [China] | |
| | T1162 | IECQ-L ULTW 16.0005 | | ULTW (TAIWAN ) | 2016/11/17 | Cancelled | |
| HannStar Display Corp Reliability Test a... [Taiwan] | |
| | 20001189 ITL | IECQ-L ULTW 19.0008 | | ULTW (TAIWAN ) | 2023/11/14 | Current | |
| HannStar Display (Nanjing) Corp Reliabil... [China] | |
| | 20006449 ITL | IECQ-L ULTW 20.0002 | | ULTW (TAIWAN ) | 2022/12/25 | Current | |
| HARTING KGaA [Germany] | |
| | 2054/M/IECQ/DE | M-IECQ VDE 05.0014 | | VDE (Germany) | 2004/04/29 | Cancelled | |
| | 127244, 40000978 | T-IECQ VDE 05.0002 | | VDE (Germany) | 2003/09/24 | Cancelled | |
| HI-G ITALIA srl [Italy] | |
| | F 112 | M-IECQ OVE 04.0001 | | OVE (Austria) | 2007/02/12 | Cancelled | |
| | 112-QA-9 | Q-IECQ OVE 04.0016 | | OVE (Austria) | 2007/02/12 | Cancelled | |
| | 112-QA-8 | Q-IECQ OVE 04.0015 | | OVE (Austria) | 2007/02/12 | Cancelled | |
| | 112-QA-7 | Q-IECQ OVE 04.0014 | | OVE (Austria) | 2007/02/12 | Cancelled | |
| | 112-QA-6 | Q-IECQ OVE 04.0013 | | OVE (Austria) | 2007/02/12 | Cancelled | |
| | 112-QA-5 | Q-IECQ OVE 04.0012 | | OVE (Austria) | 2007/02/12 | Cancelled | |
| | 112-QA-4 | Q-IECQ OVE 04.0011 | | OVE (Austria) | 2007/02/12 | Cancelled | |
| | 112-QA-3 | Q-IECQ OVE 04.0010 | | OVE (Austria) | 2007/02/12 | Cancelled | |
| | 112-QA-2 | Q-IECQ OVE 04.0009 | | OVE (Austria) | 2007/02/12 | Cancelled | |
| | 112-QA-10 | Q-IECQ OVE 04.0017 | | OVE (Austria) | 2007/02/12 | Cancelled | |
| | 112-QA-1 | Q-IECQ OVE 04.0008 | | OVE (Austria) | 2007/02/12 | Cancelled | |
| Hi-Sincerity Co, Ltd [Taiwan] | |
| | T1025 | M-IECQ ECB 04.0023 | | ULTW (United States of America) | 2002/03/15 | Cancelled | |
| HIPRO ELECTRONICS (DONGGUAN) CO,LTD GP T... [China] | |
| | IECQ-L 2009.011 | IECQ-L CEP 09.0003 | | CEP () | 2015/10/23 | Cancelled | |
| Hitachi Chemical Co (Taiwan) Ltd Taoyuan... [Taiwan] | |
| | T1099 | S-IECQ ECB 04.0002 | | ULTW (United States of America) | 1999/11/04 | Cancelled | |
| Hitachi Chemical Co, (Taiwan)Ltd [Taiwan] | |
| | T1026-2 | M-IECQ ECB 04.0025 | | ULTW (United States of America) | 1996/10/30 | Cancelled | |
| | T1026-1 | M-IECQ ECB 04.0024 | | ULTW (United States of America) | 1996/10/30 | Cancelled | |
| Hold Key Electric Wire and Cable Co, Ltd [Taiwan] | |
| | T1027-2 | M-IECQ ECB 04.0027 | | ULTW (United States of America) | 1998/09/14 | Cancelled | |
| Honeywell Aerospace [United States of America] | |
| | US1003 | A-IECQ ECCB 06.0001 | | DNVUS (United States of America) | 2006/05/18 | Cancelled | |
i | |
| IMS Chips - Institut für Mikroelektronik... [Germany] | |
| | 101397 | T-IECQ VDE 05.0003 | | VDE (Germany) | 2003/04/04 | Cancelled | |
| IMV CORPORATION Test Laboratory Division... [Japan] | |
| | JQAQ0013-003-T | IECQ-L JQAJP 13.0005-02 | | JQAJP () | 2015/10/05 | Cancelled | |
| | JQAQ0013-002-T | IECQ-L JQAJP 13.0005-01 | | JQAJP () | 2015/10/05 | Cancelled | |
| | JQAQ0013-001-T | IECQ-L JQAJP 13.0005 | | JQAJP () | 2015/10/05 | Cancelled | |
| Infineon Technologies AG [Germany] | |
| | 5007865/08.89 | IECQ-L VDE 09.0003 | | VDE (GERMANY) | 2022/11/01 | Current | |
| | 400.73/08.89 | IECQ-L VDE 09.0002 | | VDE (Germany) | 2007/12/04 | Cancelled | |
| | 400.73/08.89 | L-IECQ VDE 05.0002 | | VDE (Germany) | 2004/12/21 | Cancelled | |
| INNOLUX CORPORATION Testing Center Mater... [Taiwan] | |
| | TW-HSPM-ITL-1004 | IECQ-L ULTW 14.0002 | | ULTW () | 2014/12/27 | Cancelled | |
| Innolux Corporation (Jhunan) Testing cen... [Taiwan] | |
| | 20003329 ITL | IECQ-L ULTW 09.0023 | | ULTW (TAIWAN ) | 2023/12/19 | Current | |
| Innolux Corporation (Tainan) Testing cen... [Taiwan] | |
| | 20005898 ITL | IECQ-L ULTW 09.0023-07 | | ULTW (TAIWAN ) | 2022/11/06 | Current | |
| | 20005895 ITL | IECQ-L ULTW 09.0023-03 | | ULTW (TAIWAN ) | 2023/12/19 | Current | |
| Innolux Optoelectronics Ltd (Shanghai) A... [China] | |
| | T1130-5 | IECQ-L ULTW 09.0023-04 | | ULTW (TAIWAN ) | 2015/07/08 | Cancelled | |
| INPAQ Technology Co, Ltd [Taiwan] | |
| | T1030 | M-IECQ ECB 04.0030 | | ULTW (United States of America) | 1999/04/27 | Cancelled | |
| INPAQ Technology (Taichung) Co, Ltd [Taiwan] | |
| | T1030-1 | M-IECQ ECCB 07.0002 | | ULTW (United States of America) | 2007/02/21 | Cancelled | |
| integrated Service Technology Inc [Taiwan] | |
| | DEKRA-IECQ-T5-2022/2 | IECQ-L DEKRA 16.0002-03 | | DEKRA (NETHERLANDS) | 2023/05/06 | Current | |
| Integrated Service Technology (Kunshan) ... [China] | |
| | 1.72.0031/B | IECQ-L NSAIUS 09.0005 | | NSAIUS () | 2015/09/17 | Cancelled | |
| Integrated Service Technology (Shanghai)... [China] | |
| | DEKRA-C11B-001 | IECQ-L DEKRA 17.0004-01 | | DEKRA (NETHERLANDS) | 2017/12/22 | Cancelled | |
| | DEKRA-C11A-001 | IECQ-L DEKRA 17.0004 | | DEKRA (NETHERLANDS) | 2017/12/21 | Cancelled | |
| Integrated Service Technology (Shenzhen)... [China] | |
| | DEKRA-C10B | IECQ-L DEKRA 17.0001-01 | | DEKRA (NETHERLANDS) | 2017/11/27 | Cancelled | |
| | DEKRA-C10A | IECQ-L DEKRA 17.0001 | | DEKRA (NETHERLANDS) | 2017/11/27 | Cancelled | |
| | 1.72.0124/A | IECQ-L NSAIUS 11.0002 | | NSAIUS () | 2014/11/27 | Cancelled | |
| Integrated Service Technology, Inc [Taiwan] | |
| | DEKRA-T5B-003 | IECQ-L DEKRA 16.0002-01 | | DEKRA (NETHERLANDS) | 2022/07/28 | Current | |
| | DEKRA-T5A-003 | IECQ-L DEKRA 16.0002 | | DEKRA (NETHERLANDS) | 2022/07/28 | Current | |
| | DEKRA-IECQ-T5-2022/2 | IECQ-L DEKRA 16.0002-02 | | DEKRA (NETHERLANDS) | 2023/05/06 | Current | |
| Integrated Services of Quality Assessmen... [Taiwan] | |
| | T1137 | IECQ-L NSAIUS 08.0007 | | NSAIUS (UNITED STATES) | 2011/06/22 | Cancelled | |
| Intel Mobile Communications GmbH [Germany] | |
| | 5013867/07.11 | IECQ-L VDE 12.0001 | | VDE () | 2014/11/14 | Cancelled | |
| Inventec AE PA Testing Laboratory [Taiwan] | |
| | 50600525 ITL | IECQ-L ULTW 23.0001 | | ULTW (TAIWAN ) | 2024/07/01 | Current | |
| Inventec Corporation (Taoyuan), Chemical... [Taiwan] | |
| | TW-HSPM-ITL-1003 | IECQ-L ULTW 08.0001 | | ULTW (TAIWAN ) | 2017/08/09 | Cancelled | |
| Invotec Circuits Blackburn Limited [United Kingdom] | |
| | M1018 IECQ-CECC | M-IECQ BSI 04.0018 | | BSI (United Kingdom) | 2003/12/15 | Cancelled | |
| | E011/CA | C-IECQ BSI 05.0011 | | BSI (United Kingdom) | 2007/03/02 | Cancelled | |
| Irlandus Circuits Ltd [United Kingdom] | |
| | M1020 IECQ-CECC | M-IECQ BSI 04.0020 | | BSI (United Kingdom) | 2004/05/21 | Cancelled | |
| | 014/QCA | C-IECQ BSI 05.0013 | | BSI (United Kingdom) | 2004/05/21 | Cancelled | |
| ITT Industries Limited [United Kingdom] | |
| | M1022 IECQ | M-IECQ BSI 04.0021 | | BSI (United Kingdom) | 2012/12/12 | Cancelled | |
| | E1257/F | Q-IECQ BSI 05.0096 | | BSI (United Kingdom) | 2010/08/04 | Cancelled | |
| ITW doo [Slovenia] | |
| | HA104895 | Q-IECQ VDE 05.0011 | | VDE (Germany) | 2005/05/23 | Cancelled | |
| | HA104895 | Q-IECQ VDE 05.0011 | | VDE (Germany) | 2005/05/23 | Cancelled | |
| ITW Switches, A Division of ITW Limited [United Kingdom] | |
| | M1067 IECQ | M-IECQ BSI 06.0004 | | BSI (United Kingdom) | 2010/03/19 | Cancelled | |
| IWATE ELECTROLYTIC INDUSTRY CORPORATION [Japan] | |
| | RCJ-00C-03 | S-IECQ RCJ 04.0001 | | RCJ (JAPAN) | 2010/11/08 | Cancelled | |
| | RCJ-00C-03 | S-IECQ RCJ 04.0001 | | RCJ (JAPAN) | 2009/11/16 | Cancelled | |
| IWATE NIKKAN CO LTD [Japan] | |
| | RCJ-95M-24 | M-IECQ RCJ 04.0014 | | RCJ (JAPAN) | 2010/11/08 | Cancelled | |
j | |
| JAE HIROSAKI LTD [Japan] | |
| | RCJ-94M-18 | M-IECQ RCJ 04.0015 | | RCJ (JAPAN) | 2008/05/16 | Cancelled | |
| | 94M18 | M-IECQ RCJ 04.0015 | | RCJ (JAPAN) | 2006/06/30 | Cancelled | |
| JAE YAMAGATA LTD [Japan] | |
| | 94M20 | M-IECQ RCJ 04.0016 | | RCJ (JAPAN) | 2006/06/30 | Cancelled | |
| JAPAN AVIATION ELECTRONICS INDUSTRY LTD [Japan] | |
| | RCJ-96M-05 | M-IECQ RCJ 04.0018 | | RCJ (JAPAN) | 2009/05/25 | Cancelled | |
| | RCJ-96M-05 | M-IECQ RCJ 04.0018 | | RCJ (JAPAN) | 2008/05/16 | Cancelled | |
| | 93M32 | M-IECQ RCJ 04.0017 | | RCJ (JAPAN) | 2005/12/15 | Cancelled | |
| Jenn Feng Electric Industrial Co, Ltd [Taiwan] | |
| | T1031 | M-IECQ ECB 04.0031 | | NSAIUS (United States of America) | 2000/03/31 | Cancelled | |
| JIAN LONG ELECTRONIC (BAOAN) CO, LTD [China] | |
| | 0211/M | M-IECQ CEP 06.0022 | | CEP (China) | 2006/07/11 | Cancelled | |
| JIASHAN TIANCHENG POWERFUL MAGNETIC PROD... [China] | |
| | 0301/M | M-IECQ CEP 06.0010 | | CEP (China) | 2004/02/03 | Cancelled | |
| JOLA Spezialschalter K Mattil & Co KG [France] | |
| | 2849/M/IECQ/DE | M-IECQ VDE 08.0005 | | VDE (Germany) | 2010/04/27 | Cancelled | |
| JOLA Spezialschalter K Mattil & Co KG [Germany] | |
| | 2849/M/IECQ/DE | M-IECQ VDE 05.0021 | | VDE (Germany) | 2007/04/04 | Cancelled | |
| | 2849/M/IECQ/DE | M-IECQ VDE 05.0041 | | VDE (Germany) | 2010/04/27 | Cancelled | |
| | 2849/M/IECQ/DE | M-IECQ VDE 05.0021 | | VDE (Germany) | 2010/04/27 | Cancelled | |
| JOLA Spezialschalter K Mattil & Co KG [Romainville] | |
| | 2849/M/IECQ/DE | M-IECQ VDE 08.0005 | | VDE (Germany) | 2007/04/04 | Cancelled | |
| Joyin Co, Ltd [Taiwan] | |
| | T1032-1 | M-IECQ ECB 04.0032 | | ULTW (United States of America) | 1997/08/12 | Cancelled | |
| | T1032 | Q-IECQ ECB 04.0004 | | ULTW (United States of America) | 1999/02/03 | Cancelled | |
| JVC COMPONENTS (THAILAND) CO LTD [Thailand] | |
| | RCJ-(T)97M-01 | M-IECQ RCJ 04.0019 | | RCJ (JAPAN) | 2007/10/05 | Cancelled | |
| JVC KENWOOD Corporation [Japan] | |
| | RCJ-94M-31 | M-IECQ RCJ 04.0046 | | RCJ (JAPAN) | 2011/11/14 | Cancelled | |
k | |
| Kai Hwa Circuits Industrial Co, Ltd [Taiwan] | |
| | T1033 | M-IECQ ECB 04.0033 | | ULTW (United States of America) | 2001/03/09 | Cancelled | |
| KAMAYA ELECTRIC CO LTD [Japan] | |
| | 95M17 | M-IECQ RCJ 04.0020 | | RCJ (JAPAN) | 2003/12/04 | Cancelled | |
| Kelan Circuits Limited [United Kingdom] | |
| | M1024 IECQ | M-IECQ BSI 04.0022 | | BSI (United Kingdom) | 2010/03/19 | Cancelled | |
| | E025/CA | C-IECQ BSI 05.0023 | | BSI (United Kingdom) | 2009/06/01 | Cancelled | |
| KEMET de Mexico, SA de CV [Mexico] | |
| | M1078 IECQ Issue 2 | M-IECQ BSI 08.0002 | | BSI (GB) | 2011/05/14 | Cancelled | |
| KEMET ELECTRONICS CORPORATION [Mexico] | |
| | E1285/F | Q-IECQ BSI 10.0002 | | BSI (UNITED KINGDOM) | 2010/10/13 | Cancelled | |
| | E1284/F | Q-IECQ BSI 10.0001 | | BSI (UNITED KINGDOM) | 2010/09/14 | Cancelled | |
| | E1282/F | Q-IECQ BSI 08.0003 | | BSI (UNITED KINGDOM) | 2008/07/24 | Cancelled | |
| Kemet Electronics Oy [Finland] | |
| | HA131160 | Q-IECQ VDE 05.0017 | | VDE (Germany) | 2011/04/15 | Cancelled | |
| KOA EUROPE GmbH [Germany] | |
| | 21157/D/IECQ/DE | D-IECQ VDE 05.0002 | | VDE (Germany) | 2005/03/14 | Cancelled | |
| KOA Kaohsiung Corp [Taiwan] | |
| | T1034 | M-IECQ ECB 04.0034 | | ULTW (United States of America) | 1998/11/17 | Cancelled | |
| KOMATSU MURATA MANUFACTURING CO LTD [Japan] | |
| | RCJ-93M-02 | M-IECQ RCJ 04.0021 | | RCJ (JAPAN) | 2006/12/15 | Cancelled | |
| Korea Electronics Inc [Korea, Republic of] | |
| | 007/M/IECQ/KR | M-IECQ KTL 05.0009 | | KTL (Korea, Republic of) | 2002/04/20 | Cancelled | |
| Korea Technology Corporation [Korea, Republic of] | |
| | 0009/M/IECQ/KR | M-IECQ KTL 05.0011 | | KTL (Korea, Republic of) | 2002/04/20 | Cancelled | |
| KOSHIN ELECTRONICS CO LTD [Japan] | |
| | RCJ-97M-03 | M-IECQ RCJ 04.0022 | | RCJ (JAPAN) | 2008/03/14 | Cancelled | |
| | 97M03 | M-IECQ RCJ 04.0022 | | RCJ (JAPAN) | 2006/03/03 | Cancelled | |
| KS TERMINALS INC [Taiwan] | |
| | 20004402 ITL | IECQ-L ULTW 09.0008 | | ULTW (TAIWAN ) | 2023/08/31 | Current | |
| KUNIMI MEDIA DEVICE CO LTD [Japan] | |
| | RCJ-04C-01 | S-IECQ RCJ 04.0005 | | RCJ (JAPAN) | 2011/03/14 | Cancelled | |
| KUNSHAN STANDARD CO, LTD [China] | |
| | IECQ-L2017.013 | IECQ-L CEP 17.0001 | | CEP (CHINA) | 2020/10/27 | Cancelled | |
| KUSUMOTO CHEMICALS LTD ETAC Division Rel... [Japan] | |
| | JQAQ0010-001-T | IECQ-L JQAJP 13.0003 | | JQAJP (JAPAN) | 2018/07/18 | Cancelled | |
| KUSUMOTO CHEMICALS LTD [Japan] | |
| | RCJ-00T-01-03 | IECQ-L RCJ 10.0016 | | RCJ (JAPAN) | 2011/08/01 | Cancelled | |
| | RCJ-00T-01-02 | IECQ-L RCJ 10.0015 | | RCJ (JAPAN) | 2009/07/24 | Cancelled | |
| | RCJ-00T-01-02 | IECQ-L RCJ 10.0015 | | RCJ (JAPAN) | 2011/08/01 | Cancelled | |
| | RCJ-00T-01-01 | IECQ-L RCJ 10.0014 | | RCJ (JAPAN) | 2011/08/01 | Cancelled | |
| | RCJ-00T-01 | IECQ-L RCJ 10.0013 | | RCJ (JAPAN) | 2011/08/01 | Cancelled | |
| | JQAQ0010-003-T | IECQ-L JQAJP 20.0001 | | JQAJP (JAPAN) | 2024/06/26 | Current | |
| | JQAQ0010-002-T | IECQ-L JQAJP 20.0001-01 | | JQAJP (JAPAN) | 2024/06/26 | Current | |
| Kyung Sung Electronics Co, Ltd [Korea, Republic of] | |
| | 0015/M/IECQ/KR | M-IECQ KTL 05.0017 | | KTL (Korea, Republic of) | 2002/04/20 | Cancelled | |
l | |
| LABORATOIRE CENTRAL D'ESSAIS OF SOURIAU [France] | |
| | 01-L-94 | L-IECQ LCIE 06.0001 | | LCIE (France) | 2006/02/13 | Cancelled | |
| LCE DE RADIALL [France] | |
| | 01-L-89 | L-IECQ LCIE 05.0002 | | LCIE (France) | 2002/10/23 | Cancelled | |
| LCE of SOURIAU [France] | |
| | 01-L-94 | L-IECQ LCIE 05.0001 | | LCIE (France) | 2004/11/17 | Cancelled | |
| LCEP [France] | |
| | 01-D-99 | D-IECQ LCIE 07.0007 | | LCIE (France) | 2007/03/22 | Cancelled | |
| | 01-D-99 | D-IECQ LCIE 05.0001 | | LCIE (France) | 2005/01/26 | Cancelled | |
| LEACH INTERNATION EUROPE SA [France] | |
| | 95-021 | Q-IECQ LCIE 05.0066 | | LCIE (France) | 2002/07/29 | Cancelled | |
| LEACH INTERNATIONAL EUROPE SA [France] | |
| | 97-034 | Q-IECQ LCIE 06.0033 | | LCIE (France) | 2009/08/08 | Cancelled | |
| | 97-034 | Q-IECQ LCIE 05.0080 | | LCIE (France) | 2003/08/09 | Cancelled | |
| | 97-033 | Q-IECQ LCIE 06.0032 | | LCIE (France) | 2009/08/08 | Cancelled | |
| | 97-033 | Q-IECQ LCIE 05.0079 | | LCIE (France) | 2003/08/09 | Cancelled | |
| | 97-032 | Q-IECQ LCIE 06.0031 | | LCIE (France) | 2009/08/08 | Cancelled | |
| | 97-032 | Q-IECQ LCIE 05.0078 | | LCIE (France) | 2003/08/09 | Cancelled | |
| | 97-031 | Q-IECQ LCIE 05.0077 | | LCIE (France) | 2003/08/09 | Cancelled | |
| | 97-031 | Q-IECQ LCIE 06.0030 | | LCIE (France) | 2009/08/08 | Cancelled | |
| | 97-030 | Q-IECQ LCIE 06.0029 | | LCIE (France) | 2009/08/08 | Cancelled | |
| | 97-030 | Q-IECQ LCIE 05.0076 | | LCIE (France) | 2003/08/09 | Cancelled | |
| | 96-021 | Q-IECQ LCIE 05.0075 | | LCIE (France) | 2002/07/01 | Cancelled | |
| | 96-020 | Q-IECQ LCIE 05.0074 | | LCIE (France) | 2002/07/01 | Cancelled | |
| | 95-028 | Q-IECQ LCIE 05.0073 | | LCIE (France) | 2002/07/29 | Cancelled | |
| | 95-027 | Q-IECQ LCIE 05.0072 | | LCIE (France) | 2002/07/29 | Cancelled | |
| | 95-026 | Q-IECQ LCIE 05.0071 | | LCIE (France) | 2002/07/29 | Cancelled | |
| | 95-025 | Q-IECQ LCIE 05.0070 | | LCIE (France) | 2002/07/29 | Cancelled | |
| | 95-024 | Q-IECQ LCIE 05.0069 | | LCIE (France) | 2002/07/29 | Cancelled | |
| | 95-024 | Q-IECQ LCIE 05.0122 | | LCIE (France) | 2005/07/29 | Cancelled | |
| | 95-023 | Q-IECQ LCIE 05.0068 | | LCIE (France) | 2002/07/29 | Cancelled | |
| | 95-022 | Q-IECQ LCIE 05.0067 | | LCIE (France) | 2002/07/29 | Cancelled | |
| | 95-021 | Q-IECQ LCIE 05.0119 | | LCIE (France) | 2005/07/29 | Cancelled | |
| | 007-95 | M-IECQ LCIE 05.0014 | | LCIE (France) | 2003/12/16 | Cancelled | |
| | 006-95 | M-IECQ LCIE 05.0013 | | LCIE (France) | 2003/12/16 | Cancelled | |
| Leicester Circuits (UK) Limited [United Kingdom] | |
| | M1026 IECQ-CECC | M-IECQ BSI 04.0024 | | BSI (United Kingdom) | 2003/12/15 | Cancelled | |
| | 024/QCA | C-IECQ BSI 05.0012 | | BSI (United Kingdom) | 2007/05/30 | Cancelled | |
| Leiterplatten Servicestation Brautmeier ... [Germany] | |
| | 5001165/M/IECQ-CECC/DE | S-IECQ VDE 05.0001 | | VDE (Germany) | 2006/10/23 | Cancelled | |
| | 5001165/M/IECQ-CECC/DE | S-IECQ VDE 05.0001 | | VDE (Germany) | 2012/09/21 | Cancelled | |
| Limitor GmbH [Germany] | |
| | 1855800/12.02 | M-IECQ VDE 05.0008 | | VDE (Germany) | 2010/06/21 | Cancelled | |
| Limitor GmbH [Hungary] | |
| | 1855800/12.02 | M-IECQ VDE 05.0009 | | VDE (Germany) | 2010/06/21 | Cancelled | |
| Lingsen Precision Industries Ltd [Taiwan] | |
| | T1035 | M-IECQ ECB 04.0035 | | ULTW (United States of America) | 1999/09/08 | Cancelled | |
| Lormay Limited [United Kingdom] | |
| | M1027 IECQ-CECC | M-IECQ BSI 06.0002 | | BSI (United Kingdom) | 2006/01/13 | Cancelled | |
| | E027/CA | C-IECQ BSI 06.0002 | | BSI (United Kingdom) | 2006/01/13 | Cancelled | |
| Lyncolec Limited [United Kingdom] | |
| | M1028 IECQ-CECC | M-IECQ BSI 04.0025 | | BSI (United Kingdom) | 2003/12/15 | Cancelled | |
| | E071/CA | C-IECQ BSI 05.0021 | | BSI (United Kingdom) | 2007/05/03 | Cancelled | |
m | |
| MATE FORD INTERNATIONAL CO, LTD [China] | |
| | 0311/M | M-IECQ CEP 06.0008 | | CEP (China) | 2005/11/01 | Cancelled | |
| MATE FORD INTERNATIONAL LIMITED [China] | |
| | 0311/M | M-IECQ CEP 08.0003 | | CEP (CN) | 2008/07/09 | Cancelled | |
| Materials Analysis Technology Inc (Kumam... [Japan] | |
| | 50600531 ITL | IECQ-L ULTW 16.0003-11 | | ULTW (TAIWAN ) | 2023/08/15 | Current | |
| Materials Analysis Technology Inc (Nagoy... [Japan] | |
| | 20004655 ITL | IECQ-L ULTW 16.0003-12 | | ULTW (TAIWAN ) | 2023/08/15 | Current | |
| Materials Analysis Technology Inc [Taiwan] | |
| | T1107-5 | IECQ-L ULTW 16.0003-05 | | ULTW (TAIWAN ) | 2016/07/28 | Cancelled | |
| | 50600421 ITL | IECQ-L ULTW 16.0003-09 | | ULTW (TAIWAN ) | 2023/08/15 | Current | |
| | 50600097 ITL | IECQ-L ULTW 16.0003-07 | | ULTW (TAIWAN ) | 2024/08/29 | Current | |
| | 20003698 ITL | IECQ-L ULTW 16.0003-04 | | ULTW (TAIWAN ) | 2024/08/29 | Current | |
| | 20002490 ITL | IECQ-L ULTW 16.0003-02 | | ULTW (TAIWAN ) | 2024/08/29 | Current | |
| | 20001846 ITL | IECQ-L ULTW 16.0003-01 | | ULTW (TAIWAN ) | 2023/08/15 | Current | |
| | 20001845 ITL | IECQ-L ULTW 16.0003 | | ULTW (TAIWAN ) | 2024/08/29 | Current | |
| Materials Analysis Technology (Shanghai)... [China] | |
| | 50600530 ITL | IECQ-L ULTW 16.0003-13 | | ULTW (TAIWAN ) | 2024/08/07 | Current | |
| | 50600328 ITL | IECQ-L ULTW 16.0003-15 | | ULTW (TAIWAN ) | 2024/08/07 | Current | |
| | 50600326 ITL | IECQ-L ULTW 16.0003-14 | | ULTW (TAIWAN ) | 2024/08/07 | Current | |
| | 20003649 ITL | IECQ-L ULTW 16.0003-03 | | ULTW (TAIWAN ) | 2024/08/07 | Current | |
| Materials Analysis Technology (SuZhou) L... [China] | |
| | 50600599 ITL | IECQ-L ULTW 16.0003-16 | | ULTW (TAIWAN ) | 2024/09/03 | Current | |
| Materials Analysis Technology (Xiamen) L... [China] | |
| | 50600529 ITL | IECQ-L ULTW 16.0003-10 | | ULTW (TAIWAN ) | 2024/08/21 | Current | |
| | 50600329 ITL | IECQ-L ULTW 16.0003-08 | | ULTW (TAIWAN ) | 2023/08/11 | Current | |
| Materials Service Platform Corporation E... [Taiwan] | |
| | 50600585 ITL | IECQ-L ULTW 24.0003 | | ULTW (TAIWAN ) | 2024/04/05 | Current | |
| MATSUSHITA ELECTRIC WORKS ANALYSIS CENTE... [Japan] | |
| | RCJ-06T-01 | L-IECQ RCJ 08.0002 | | RCJ (JAPAN) | 2006/10/06 | Cancelled | |
| MEIKO ELECTRONICS CO LTD [Japan] | |
| | RCJ-95M-22 | M-IECQ RCJ 04.0047 | | RCJ (JAPAN) | 2008/09/26 | Cancelled | |
| MELEC COMPANY LTD [Japan] | |
| | RCJ-97M-04 | M-IECQ RCJ 04.0023 | | RCJ (JAPAN) | 2008/02/08 | Cancelled | |
| | 97M04 | M-IECQ RCJ 04.0023 | | RCJ (JAPAN) | 2006/03/03 | Cancelled | |
| Merlin Artetch Limited [United Kingdom] | |
| | M1083 IECQ | M-IECQ BSI 11.0001 | | BSI (UNITED KINGDOM) | 2011/01/29 | Cancelled | |
| | E092/CA Issue 1 | C-IECQ BSI 11.0001 | | BSI (UNITED KINGDOM) | 2011/03/28 | Cancelled | |
| Merlin Circuit Technology Ltd [United Kingdom] | |
| | M1029 IECQ-CECC | M-IECQ BSI 04.0026 | | BSI (United Kingdom) | 2004/02/16 | Cancelled | |
| | M1029 IECQ-CECC | M-IECQ BSI 05.0019 | | BSI (United Kingdom) | 2004/02/16 | Cancelled | |
| | E030/CA | C-IECQ BSI 05.0016 | | BSI (United Kingdom) | 2006/02/06 | Cancelled | |
| Microelectronics Technology Inc Environm... [Taiwan] | |
| | 20004118 ITL | IECQ-L ULTW 09.0017 | | ULTW (TAIWAN ) | 2022/06/22 | Current | |
| Microelectronics Technology Inc Equipmen... [Taiwan] | |
| | 20004119 ITL | IECQ-L ULTW 09.0016 | | ULTW (TAIWAN ) | 2022/06/22 | Current | |
| MICROTEC GmbH [Germany] | |
| | 15140/01.92 | L-IECQ VDE 05.0003 | | VDE (Germany) | 2007/04/12 | Cancelled | |
| MILMEGA [France] | |
| | 01-D-01 | D-IECQ LCIE 06.0004 | | LCIE (France) | 2006/10/03 | Cancelled | |
| | 01-D-01 | D-IECQ LCIE 07.0008 | | LCIE (France) | 2007/03/22 | Cancelled | |
| | 01-D-01 | D-IECQ LCIE 06.0002 | | LCIE (France) | 2006/02/17 | Cancelled | |
| | 01-D-01 | D-IECQ LCIE 05.0013 | | LCIE (France) | 2004/12/10 | Cancelled | |
| MinebeaMitsumi [Japan] | |
| | JQAQ0015-001-T | IECQ-L JQAJP 13.0006 | | JQAJP (JAPAN) | 2022/10/31 | Current | |
| Mintech Semiconductors Ltd [United Kingdom] | |
| | M1031 IECQ-CECC | M-IECQ BSI 04.0027 | | BSI (United Kingdom) | 2003/12/15 | Cancelled | |
| MiTAC Computing Technology Corporation (... [Taiwan] | |
| | T1146 | IECQ-L ULTW 11.0002 | | ULTW (TAIWAN ) | 2017/05/15 | Cancelled | |
| MiTAC INTERNATIONAL CORPORATION (Acousti... [Taiwan] | |
| | T1108 | IECQ-L ULTW 09.0019 | | ULTW (United States of America) | 2010/06/03 | Cancelled | |
| MiTAC International Corporation (Reliabi... [Taiwan] | |
| | 1.72.0035 | IECQ-L NSAIUS 09.0003 | | NSAIUS (United States of America) | 2013/10/18 | Cancelled | |
| MITSUMI ELECTRIC CO LTD [Japan] | |
| | 92M06 | M-IECQ RCJ 04.0024 | | RCJ (JAPAN) | 2003/12/04 | Cancelled | |
| MSSCORPS CO, LTD Hsinchu BRANCH [Taiwan] | |
| | 50600343 ITL | IECQ-L ULTW 20.0001 | | ULTW (TAIWAN ) | 2022/01/17 | Current | |
| MSSCORPS CO, LTD STSP BRANCH [Taiwan] | |
| | 50600299 ITL | IECQ-L ULTW 19.0002 | | ULTW (TAIWAN ) | 2023/04/27 | Current | |
| MSSCORPS CO, LTD Zhubei BRANCH [Taiwan] | |
| | 50600440 ITL | IECQ-L ULTW 22.0003-01 | | ULTW (TAIWAN ) | 2024/02/21 | Current | |
| | 50600439 ITL | IECQ-L ULTW 22.0003 | | ULTW (TAIWAN ) | 2022/01/17 | Current | |
| MSSCORPS CO, LTD [Taiwan] | |
| | 50600259 ITL | IECQ-L ULTW 19.0001 | | ULTW (TAIWAN ) | 2023/04/27 | Current | |
| MSSCORPS (NANJING) CO, LTD [China] | |
| | 50600331 ITL | IECQ-L ULTW 19.0010 | | ULTW (TAIWAN ) | 2022/12/13 | Current | |
| Murata Elektronik Handels GmbH [Germany] | |
| | 17826/03.93 | D-IECQ VDE 05.0001 | | VDE (Germany) | 2002/06/13 | Cancelled | |
| MURATA MANUFACTURING CO LTD [Japan] | |
| | RCJ-97M-07 | M-IECQ RCJ 04.0027 | | RCJ (JAPAN) | 2012/09/24 | Cancelled | |
| M/s CDIL [India] | |
| | 004/M/IECQ/IN | M-IECQ STQ 05.0001 | | STQ (India) | 2004/01/24 | Cancelled | |
n | |
| Nanjing Innolux Optoelectronics Ltd Reli... [China] | |
| | 20003327 ITL | IECQ-L ULTW 09.0023-01 | | ULTW (TAIWAN ) | 2022/11/05 | Cancelled | |
| NANJING SHENNING MAGNETIC & ELECTRONICS ... [China] | |
| | 0312/M | M-IECQ CEP 06.0008 | | CEP (China) | 2006/02/28 | Cancelled | |
| NANTONG GAOXIN ELECTRONICS CO, LTD [China] | |
| | 0030/M | M-IECQ CEP 06.0017 | | CEP (China) | 2004/02/05 | Cancelled | |
| | 0030/M | M-IECQ CEP 07.0005 | | CEP (China) | 2007/05/15 | Cancelled | |
| NANTONG JIANGHAI CAPACITOR CO, LTD [China] | |
| | 0021/M | M-IECQ CEP 06.0017 | | CEP (China) | 2004/09/14 | Cancelled | |
| | 0021/M | M-IECQ CEP 09.0003 | | CEP (CHINA) | 2008/01/15 | Cancelled | |
| NEC TOPPAN CIRCUIT SOLUTIONS INC [Japan] | |
| | RCJ-87M-02-02 | M-IECQ RCJ 08.0004 | | RCJ (JAPAN) | 2011/03/14 | Cancelled | |
| | RCJ-87M-02-01 | M-IECQ RCJ 08.0003 | | RCJ (JAPAN) | 2011/03/14 | Cancelled | |
| | RCJ-87M-02 | M-IECQ RCJ 04.0028 | | RCJ (JAPAN) | 2011/03/14 | Cancelled | |
| NEW TECH ELECTRONIC CO, LTD [China] | |
| | 0324/M | M-IECQ CEP 08.0001 | | CEP (CN) | 2010/01/13 | Cancelled | |
| NICOSOFRA [France] | |
| | 91-047 | C-IECQ LCIE 06.0001 | | LCIE (France) | 2006/04/24 | Cancelled | |
| | 008-89 | M-IECQ LCIE 05.0008 | | LCIE (France) | 2003/12/16 | Cancelled | |
| | 008-89 | M-IECQ LCIE 06.0010 | | LCIE (France) | 2006/10/05 | Cancelled | |
| | 008-89 | M-IECQ LCIE 07.0014 | | LCIE (France) | 2007/03/14 | Cancelled | |
| Nienyi Industrial Corp [Taiwan] | |
| | 50600139 ITL | IECQ-L ULTW 17.0004-02 | | ULTW (TAIWAN ) | 2023/09/22 | Current | |
| Nienyi Technology (Zhuhai) Co, Ltd [China] | |
| | 20002129 ITL | IECQ-L ULTW 17.0004 | | ULTW (TAIWAN ) | 2023/09/24 | Current | |
| Ningbo Innolux Optoelectronics Ltd Relia... [China] | |
| | 50600541 ITL | IECQ-L ULTW 09.0023-08 | | ULTW (TAIWAN ) | 2023/12/19 | Current | |
| | 20005897 ITL | IECQ-L ULTW 09.0023-06 | | ULTW (TAIWAN ) | 2023/12/19 | Current | |
| NINGBO SHINE ELECTRICAL CO, LTD / NINGBO... [China] | |
| | 0033/M | M-IECQ CEP 10.0003 | | CEP (CHINA) | 2013/08/27 | Cancelled | |
| NINGBO SHINE ELECTRICAL CO, LTD [China] | |
| | 0033/M | M-IECQ CEP 06.0017 | | CEP (China) | 2004/07/28 | Cancelled | |
| NINGBO SHINE ELECTRICAL CO, LTD/ NINGBO ... [China] | |
| | 0033/M | M-IECQ CEP 07.0010 | | CEP (China) | 2008/06/02 | Cancelled | |
| NINGBO SHUANGLIN ELECTRONIC CO, LTD [China] | |
| | 0129/M | M-IECQ CEP 06.0023 | | CEP (China) | 2006/06/06 | Cancelled | |
| NINGBO SONGLE RELAY CO, LTD / NINGBO SON... [China] | |
| | 0319/M | M-IECQ CEP 10.0002 | | CEP (CHINA) | 2010/08/12 | Cancelled | |
| NINGBO SONGLE RELAY CO, LTD [China] | |
| | 0319/M | M-IECQ CEP 06.0005 | | CEP (China) | 2004/04/19 | Cancelled | |
| NINGBO SONGLE RELAY CO, LTD/ NINGBO SONG... [China] | |
| | 0319/M | M-IECQ CEP 07.0011 | | CEP (China) | 2007/09/27 | Cancelled | |
| Nypro Chemical Laboratory [China] | |
| | PRC-HSPM-ITL-1004 | IECQ-L ULTW 09.0001 | | ULTW (Taiwan ) | 2011/12/28 | Cancelled | |
o | |
| Octekconn Enterprise Co, Ltd [Taiwan] | |
| | T1040 | M-IECQ ECB 04.0039 | | ECB (United States of America) | 1999/08/26 | Cancelled | |
| OITA PRECISION CORPORATION [Japan] | |
| | 98C02 | S-IECQ RCJ 04.0003 | | RCJ (JAPAN) | 2006/03/03 | Cancelled | |
| OKI ENGINEERING CO Ltd [Japan] | |
| | RCJ-88T-01-01 | L-IECQ RCJ 08.0005 | | RCJ (JAPAN) | 2008/12/19 | Cancelled | |
| Oki Engineering Co, Ltd [Japan] | |
| | JQAQ0002-003-T | IECQ-L JQAJP 13.0002-02 | | JQAJP (JAPAN) | 2023/10/31 | Current | |
| | JQAQ0002-002-T | IECQ-L JQAJP 13.0002-01 | | JQAJP (JAPAN) | 2023/10/31 | Current | |
| | JQAQ0002-001-T | IECQ-L JQAJP 13.0002 | | JQAJP (JAPAN) | 2023/10/31 | Current | |
| ORION SCIENCE CO LTD [Japan] | |
| | RCJ-97M-02 | M-IECQ RCJ 04.0029 | | RCJ (JAPAN) | 2009/03/06 | Cancelled | |
| Oxley Developments Company Ltd [United Kingdom] | |
| | M1034 IECQ-CECC | M-IECQ BSI 04.0029 | | BSI (United Kingdom) | 2003/12/15 | Cancelled | |
p | |
| Pacific Energytech Co, Ltd [Taiwan] | |
| | T1043-2 | M-IECQ ECB 04.0042 | | ECB (United States of America) | 2001/09/03 | Cancelled | |
| Pacific Precise Industries Co, Ltd [Taiwan] | |
| | T1133 | IECQ-L ULTW 09.0007 | | ULTW (TAIWAN ) | 2017/08/07 | Cancelled | |
| PAK HENG RESISTOR (SHENZHEN) CO, LTD [China] | |
| | 0051/M | M-IECQ CEP 06.0016 | | CEP (China) | 2005/01/25 | Cancelled | |
| PAL Acoustics Technology Ltd [Taiwan] | |
| | T1131 | L-IECQ ECCB 08.0002 | | ULTW (United States of America) | 2008/03/07 | Cancelled | |
| PANASONIC COMMUNICATIONS KYUSHU CO LTD M... [Japan] | |
| | RCJ-83M-02 | M-IECQ RCJ 04.0025 | | RCJ (JAPAN) | 2008/05/16 | Cancelled | |
| Panasonic Holdings Corporation [Japan] | |
| | JQAQ0012-001-T | IECQ-L JQAJP 13.0004 | | JQAJP (JAPAN) | 2024/10/04 | Current | |
| Pancon GmbH [Germany] | |
| | HA104895 | Q-IECQ VDE 05.0012 | | VDE (Germany) | 1998/07/02 | Cancelled | |
| | 6836/05.93 | M-IECQ VDE 05.0039 | | VDE (Germany) | 2006/07/24 | Cancelled | |
| Pancon GmbH [Slovenia] | |
| | | M-IECQ VDE 05.0040 | | VDE (Germany) | 2006/07/24 | Cancelled | |
| | 6836/05.93 | M-IECQ VDE 08.0006 | | VDE (Germany) | 2006/07/24 | Cancelled | |
| PARTSNIC Co, Ltd [Korea, Republic of] | |
| | 0009/C/IECQ/KR | Q-IECQ KTL 05.0005 | | KTL (Korea, Republic of) | 2004/03/18 | Cancelled | |
| | 0003/C/IECQ/KR | Q-IECQ KTL 05.0002 | | KTL (Korea, Republic of) | 2004/12/30 | Cancelled | |
| | 0002/M/IECQ/KR | M-IECQ KTL 05.0002 | | KTL (Korea, Republic of) | 2003/08/04 | Cancelled | |
| | 0002/C/IECQ/KR | Q-IECQ KTL 05.0001 | | KTL (Korea, Republic of) | 2004/12/30 | Cancelled | |
| Pattonair Limited [United Kingdom] | |
| | D2007 IECQ | D-IECQ BSI 06.0001 | | BSI (United Kingdom) | 2010/06/25 | Cancelled | |
| Pendec Electronics Technology (Kunshan) ... [China] | |
| | T1129 | L-IECQ ECCB 07.0004 | | ULTW (United States of America) | 2007/12/02 | Cancelled | |
| Photomechanical Services (Essex) Ltd [United Kingdom] | |
| | M1036 IECQ-CECC | M-IECQ BSI 05.0001 | | BSI (United Kingdom) | 2003/12/15 | Cancelled | |
| | M1036 IECQ | M-IECQ BSI 04.0030 | | BSI (United Kingdom) | 2009/03/02 | Cancelled | |
| Powerchip Semiconductor Manufacturing Co... [Taiwan] | |
| | T1160 | IECQ-L ULTW 16.0002 | | ULTW (TAIWAN ) | 2018/10/01 | Cancelled | |
| | 50600201 ITL | IECQ-L ULTW 17.0005 | | ULTW (TAIWAN ) | 2023/10/18 | Current | |
| Powertech Technology Inc RA/CAL Lab [Taiwan] | |
| | 50600039 ITL | IECQ-L ULTW 21.0004 | | ULTW (TAIWAN ) | 2024/09/24 | Current | |
| Premier Farnell (UK) Ltd [United Kingdom] | |
| | D2002 IECQ | D-IECQ BSI 06.0002 | | BSI (United Kingdom) | 2012/02/01 | Cancelled | |
| Prime View International Co, Ltd [Taiwan] | |
| | T1110 | L-IECQ ECB 04.0015 | | ULTW (United States of America) | 2004/07/26 | Cancelled | |
| PRINCELEC [France] | |
| | 01-D-05 | D-IECQ LCIE 06.0001 | | LCIE (France) | 2005/12/15 | Cancelled | |
| | 01-D-05 | D-IECQ LCIE 07.0010 | | LCIE (France) | 2008/10/29 | Cancelled | |
| | 01-D-05 | D-IECQ LCIE 07.0010 | | LCIE (France) | 2007/03/22 | Cancelled | |
| Printech Circuit laboratories Limited [United Kingdom] | |
| | M1037 IECQ-CECC | M-IECQ BSI 05.0002 | | BSI (United Kingdom) | 2005/08/18 | Cancelled | |
| | E077/CA | C-IECQ BSI 05.0006 | | BSI (United Kingdom) | 2006/06/01 | Cancelled | |
q | |
| QUALISUD [France] | |
| | 03-D-97 | D-IECQ LCIE 07.0002 | | LCIE (France) | 2006/10/05 | Cancelled | |
| | 03-D-97 | D-IECQ LCIE 05.0010 | | LCIE (France) | 2005/06/07 | Cancelled | |
| | 03-D-97 | D-IECQ LCIE 07.0009 | | LCIE (France) | 2007/03/22 | Cancelled | |
r | |
| RADIALL SA Laboratoire Central d'Essais [France] | |
| | 01-L-89 Is.15 | IECQ-L LCIE 09.0002 | | LCIE (FRANCE) | 2021/07/21 | Cancelled | |
| | 01-L-89 | L-IECQ LCIE 05.0004 | | LCIE (France) | 2008/12/07 | Cancelled | |
| Rakon UK Limited [United Kingdom] | |
| | M1055 IECQ-CECC | M-IECQ BSI 05.0025 | | BSI (United Kingdom) | 2007/03/13 | Cancelled | |
| Rapitech Calibration Lab [Taiwan] | |
| | 20004334 ITL | IECQ-L ULTW 09.0029 | | ULTW (TAIWAN ) | 2023/10/16 | Current | |
| Real Test Industry Co, Ltd [Taiwan] | |
| | 50600079 ITL | IECQ-L ULTW 16.0001 | | ULTW (TAIWAN ) | 2023/02/27 | Current | |
| RENESAS KITAITAMI ENGINEERING SERVICES C... [Japan] | |
| | RCJ-07T-02 | IECQ-L RCJ 10.0009 | | RCJ (JAPAN) | 2010/12/13 | Cancelled | |
| | RCJ-07T-02 | IECQ-L RCJ 10.0009 | | RCJ (JAPAN) | 2011/10/17 | Cancelled | |
| RENESAS QUALITY ENGINEERING CO LTD [Japan] | |
| | RCJ-07T-02 | L-IECQ RCJ 08.0002 | | RCJ (JAPAN) | 2007/12/21 | Cancelled | |
| RIVER ELETEC CORPORATION [Japan] | |
| | RCJ-95M-15 | M-IECQ RCJ 04.0030 | | RCJ (JAPAN) | 2011/06/13 | Cancelled | |
| Rong Tseng Industrial Co, Ltd, Song Tai ... [Taiwan] | |
| | T1101 | S-IECQ ECB 04.0003 | | ULTW (United States of America) | 2000/02/23 | Cancelled | |
| RULIS Electrica Ltda [Portugal] | |
| | 18126/M/IECQ/DE | M-IECQ VDE 05.0022 | | VDE (Germany) | 2003/11/13 | Cancelled | |
| RUWEL AG [Germany] | |
| | 20480/03.2000 | M-IECQ VDE 05.0023 | | VDE (Germany) | 2004/05/14 | Cancelled | |
| | 13903/01.89 | M-IECQ VDE 05.0003 | | VDE (Germany) | 2005/01/27 | Cancelled | |
| RUWELAG [Germany] | |
| | 13903/01.89 | M-IECQ VDE 05.0004 | | VDE (Germany) | 2005/01/27 | Cancelled | |
| RWE Schott Solar GmbH [Germany] | |
| | 40007703 | Q-IECQ VDE 05.0015 | | VDE (Germany) | 2003/09/11 | Cancelled | |
| | 40006444 | Q-IECQ VDE 05.0014 | | VDE (Germany) | 2003/05/27 | Cancelled | |
| | 40003904 | Q-IECQ VDE 05.0013 | | VDE (Germany) | 2002/11/05 | Cancelled | |
| | 40003904 | Q-IECQ VDE 05.0013 | | VDE (Germany) | 2002/11/05 | Cancelled | |
| | 25188/M/IECQ/DE | M-IECQ VDE 05.0024 | | VDE (Germany) | 2005/01/17 | Cancelled | |
s | |
| S T P I [France] | |
| | 98-014 | Q-IECQ LCIE 05.0030 | | LCIE (France) | 2004/01/12 | Cancelled | |
| | 98-013 | Q-IECQ LCIE 05.0029 | | LCIE (France) | 2004/01/12 | Cancelled | |
| | 96-028 | Q-IECQ LCIE 05.0065 | | LCIE (France) | 2002/10/04 | Cancelled | |
| | 96-027 | Q-IECQ LCIE 05.0064 | | LCIE (France) | 2002/10/04 | Cancelled | |
| | 96-023 | Q-IECQ LCIE 05.0063 | | LCIE (France) | 2002/10/04 | Cancelled | |
| | 96-022 | Q-IECQ LCIE 05.0062 | | LCIE (France) | 2002/10/04 | Cancelled | |
| | 92-041 | Q-IECQ LCIE 05.0028 | | LCIE (France) | 2004/01/12 | Cancelled | |
| | 92-040 | Q-IECQ LCIE 05.0027 | | LCIE (France) | 2004/01/12 | Cancelled | |
| | 031-92 | M-IECQ LCIE 05.0012 | | LCIE (France) | 2003/12/16 | Cancelled | |
| Samsung Electro-Mechanics Co, Ltd [Korea, Republic of] | |
| | 0004/M/IECQ/KR | M-IECQ KTL 05.0006 | | KTL (Korea, Republic of) | 1994/02/25 | Cancelled | |
| Samsung Electro-Mechanics Co, Ltd, MLB D... [Korea, Republic of] | |
| | 0007/M/IECQ/KR | M-IECQ KTL 05.0007 | | KTL (Korea, Republic of) | 1996/01/25 | Cancelled | |
| Samsung Electro-Mechanics Co, Ltd, Multi... [Korea, Republic of] | |
| | 0008/M/IECQ/KR | M-IECQ KTL 05.0008 | | KTL (Korea, Republic of) | 1996/05/08 | Cancelled | |
| Samwha Capacitor Co, Ltd [Korea, Republic of] | |
| | 0006/M/IECQ/KR | M-IECQ KTL 05.0005 | | KTL (Korea, Republic of) | 2003/08/05 | Cancelled | |
| Samwha Electric Co, Ltd [Korea, Republic of] | |
| | 0012/C/IECQ/KR | Q-IECQ KTL 05.0014 | | KTL (Korea, Republic of) | 2005/10/20 | Cancelled | |
| | 0011/C/IECQ/KR | Q-IECQ KTL 05.0004 | | KTL (Korea, Republic of) | 2004/04/13 | Cancelled | |
| | 0008/C/IECQ/KR | Q-IECQ KTL 05.0006 | | KTL (Korea, Republic of) | 2003/04/25 | Cancelled | |
| | 0008/C/IECQ/KR | Q-IECQ KTL 06.0006 | | KTL (Korea, Republic of) | 2006/06/16 | Cancelled | |
| | 0006/C/IECQ/KR | Q-IECQ KTL 05.0009 | | KTL (Korea, Republic of) | 2003/04/25 | Cancelled | |
| | 0006/C/IECQ/KR | Q-IECQ KTL 06.0005 | | KTL (Korea, Republic of) | 2006/06/16 | Cancelled | |
| | 0005/M/IECQ/KR | M-IECQ KTL 05.0004 | | KTL (Korea, Republic of) | 2003/08/05 | Cancelled | |
| | 0004/C/IECQ/KR | Q-IECQ KTL 05.0007 | | KTL (Korea, Republic of) | 2003/04/25 | Cancelled | |
| | 0004/C/IECQ/KR | Q-IECQ KTL 06.0004 | | KTL (Korea, Republic of) | 2009/04/25 | Cancelled | |
| | 0003/M/IECQ/KR | M-IECQ KTL 05.0003 | | KTL (Korea, Republic of) | 2003/08/05 | Cancelled | |
| | 0003 / M / IECQ / KR (Aluminum) & 0005 / M / IECQ / KR (Film) | M-IECQ KTL 06.0009 | | KTL (Korea, Republic of) | 2009/04/24 | Cancelled | |
| Samyoung Electronics Co, Ltd [Korea, Republic of] | |
| | 0010/C/IECQ/KR | Q-IECQ KTL 05.0003 | | KTL (Korea, Republic of) | 2004/04/13 | Cancelled | |
| | 0007/C/IECQ/KR | Q-IECQ KTL 05.0011 | | KTL (Korea, Republic of) | 2004/06/19 | Cancelled | |
| | 0005/C/IECQ/KR | Q-IECQ KTL 05.0013 | | KTL (Korea, Republic of) | 2004/06/19 | Cancelled | |
| | 0001/M/IECQ/KR | M-IECQ KTL 05.0001 | | KTL (Korea, Republic of) | 2003/08/05 | Cancelled | |
| | 0001/C/IECQ/KR | Q-IECQ KTL 05.0012 | | KTL (Korea, Republic of) | 2004/06/19 | Cancelled | |
| | 0001 / M / IECQ / KR | M-IECQ KTL 06.0008 | | KTL (Korea, Republic of) | 2009/08/31 | Cancelled | |
| | 0001 / M / IECQ / KR | M-IECQ KTL 06.0008 | | KTL (Korea, Republic of) | 2009/08/31 | Cancelled | |
| | 0001 / M / IECQ / KR | M-IECQ KTL 06.0008 | | KTL (Korea, Republic of) | 2006/09/13 | Cancelled | |
| SANMENXIA INSTRUMENT ELECTRONICS CO, LTD [China] | |
| | 0327/M | M-IECQ CEP 08.0006 | | CEP (CHINA) | 2008/12/03 | Cancelled | |
| | 0327/M | M-IECQ CEP 11.0001 | | CEP (CHINA) | 2011/08/20 | Cancelled | |
| SANYO ELECTRIC CO LTD [Japan] | |
| | RCJ-94M-05 | M-IECQ RCJ 04.0045 | | RCJ (JAPAN) | 2009/05/25 | Cancelled | |
| | RCJ-94M-05 | M-IECQ RCJ 04.0045 | | RCJ (JAPAN) | 2009/11/16 | Cancelled | |
| Sea & Land Integrated Corp [Taiwan] | |
| | T1050 | M-IECQ ECB 04.0047 | | ECB (United States of America) | 2002/03/04 | Cancelled | |
| SELEX Sensors and Airborne Systems Ltd [United Kingdom] | |
| | M1056 IECQ-CECC | M-IECQ BSI 05.0006 | | BSI (United Kingdom) | 2005/05/12 | Cancelled | |
| | 018/QCA | C-IECQ BSI 05.0019 | | BSI (United Kingdom) | 2005/05/13 | Cancelled | |
| | 002/QCA | C-IECQ BSI 05.0018 | | BSI (United Kingdom) | 2005/05/13 | Cancelled | |
| Semelab Limited [United Kingdom] | |
| | M1040 IECQ | M-IECQ BSI 08.0001 | | BSI (United Kingdom) | 2011/03/12 | Cancelled | |
| Semelab Plc [United Kingdom] | |
| | E1252/F | Q-IECQ BSI 06.0053 | | BSI (United Kingdom) | 2006/01/10 | Cancelled | |
| | E1251/F | Q-IECQ BSI 06.0054 | | BSI (United Kingdom) | 2006/01/10 | Cancelled | |
| | E1249/F | Q-IECQ BSI 06.0051 | | BSI (United Kingdom) | 2006/01/10 | Cancelled | |
| | E1248/F | Q-IECQ BSI 06.0052 | | BSI (United Kingdom) | 2006/01/10 | Cancelled | |
| | E1246/F | Q-IECQ BSI 06.0050 | | BSI (United Kingdom) | 2006/01/10 | Cancelled | |