| Manufacturer | CB Certificate No. | IECQ Certificate No. | | CB/NAI | Issue Date | Status | |
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| S T P I [France] | |
| Samsung Electro-Mechanics Co, Ltd [Korea, Republic of] | |
| Samsung Electro-Mechanics Co, Ltd, MLB D... [Korea, Republic of] | |
| Samsung Electro-Mechanics Co, Ltd, Multi... [Korea, Republic of] | |
| Samwha Capacitor Co, Ltd [Korea, Republic of] | |
| Samwha Electric Co, Ltd [Korea, Republic of] | |
| Samyoung Electronics Co, Ltd [Korea, Republic of] | |
| SANMENXIA INSTRUMENT ELECTRONICS CO, LTD [China] | |
| SANYO ELECTRIC CO LTD [Japan] | |
| Sea & Land Integrated Corp [Taiwan] | |
| SELEX Sensors and Airborne Systems Ltd [United Kingdom] | |
| Semelab Limited [United Kingdom] | |
| Semelab Plc [United Kingdom] | |
| SEMICONDUCTOR VERIFICATION TECHNOLOGY, I... [China] | |
| SGS Taiwan Ltd, Chemical Laboratory - Ta... [Taiwan] | |
| Shanghai Giga Force Electronics Co, Ltd [China] | |
| SHANGHAI JUYUE INSPECTION TECHNOLOGY CO,... [China] | |
| SHARP CORPORATION [Japan] | |
| ShenZhen BestJ Testing Technologies Co, ... [China] | |
| SHENZHEN DONGXIANG ELECTRONIC INDUSTRIAL... [China] | |
| SHENZHEN KOSHIN ELECTRONICS LIMITED [China] | |
| Shenzhen Loyoung Electric & Cable Co, Lt... [China] | |
| SHENZHEN ZHENFENG IND LIMITED CO [China] | |
| SHENZHEN ZHENFENG IND LIMITED [China] | |
| SICHUAN YONGXING ELECTRONICS CO, LTD [China] | |
| SICHUAN YONGXING ELECTRONICS CO, LTD(893... [China] | |
| SILICON TECHNOLOGY CORPORATION [Japan] | |
| Siliconware Precision Industries Co, Ltd... [Taiwan] | |
| SINBON Electronics Co, Ltd [Taiwan] | |
| SMD Solar-Manufaktur Deutschland GmbH & ... [Germany] | |
| Solen Electric Co, Ltd [Taiwan] | |
| SOSHIN ELECTRIC CO LTD [Japan] | |
| SOURIAU - SUNBANK Interconnect Technolog... [France] | |
| SPACE SHUTTLE HI-TECH CO, LTD Chemical L... [China] | |
| Spartan Europe Limited [United Kingdom] | |
| Spectrum Research & Testing Lab, Inc [Taiwan] | |
| Spinner GmbH [Germany] | |
| Spirox Corporation, IC Verification Cent... [Taiwan] | |
| SRT MICROCERAMIQUE [France] | |
| Standard Technology inc [Taiwan] | |
| Stevenage Circuits Limited [United Kingdom] | |
| STOCK'N SOURCE [France] | |
| STPI [France] | |
| Sung Woo Circuit Co, Ltd [Korea, Republic of] | |
| Sunny Electronics Corp [Korea, Republic of] | |
| Suyin Electronics (Dongguan) Co, Ltd In ... [China] | |
| SUZHOU BAOTAI PRECISION ELECTRONICS CO, ... [China] | |
| Syfer Technology Ltd [United Kingdom] | |
| S&M Earth Electric Co, Ltd [Taiwan] | |
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