| no image | S3 | | |
| no image | Sage | | |
| no image | Sames | | |
| no image | Samsung Electronics | | |
| no image | Samsung Semiconductor | | |
| no image | Sanken | サンケン | |
| no image | Sanyo | 三洋電機株式会社 | |
| no image | SANYO DENKI | 山洋電気 | |
| no image | Scenix Semiconductor | | |
| no image | SEEQ Technology | | |
| no image | Seiko Epson Corp. | セイコーエプソン株式会社 | |
| no image | Seiko Epson Corp. | セイコーエプソン株式会社 | |
| no image | Seiko Instruments | セイコーインスツル株式会社 | |
| no image | Semelab (Magnatec) | | |
| no image | SEMITEC | SEMITEC | https://www.semitec.co.jp/ |
| no image | Semtech | | |
| no image | SGS | | |
| no image | SGS-Ates | | |
| no image | Sharp | | |
| no image | Shindengen | 新電元 | |
| no image | Siemens (now Infineon) | | |
| no image | Siemens (now Infineon) | | |
| no image | Sierra (now PMS-Sierra) | | |
| no image | Sigma Tel | | |
| no image | Signal Processing Technologies | | |
| no image | Signetics(now Philips) | | |
| no image | Silicon Integrated Systems | | |
| no image | Silicon Magic | | |
| no image | Silicon Storage Technology | | |
| no image | Silicon Systems(Texas Instruments) | | |
| no image | Siliconians | | |
| no image | Siliconix | | |
| no image | Simtek Corporation | | |
| no image | Sipex | | |
| no image | SMC | | |
| no image | Solid State Scientific(Thomson-CSF) | | |
| no image | Sony | ソニー株式会社 | |
| no image | Space Electronics | | |
| no image | Spectek | | |
| no image | Standard Microsystems | | |
| no image | Standard Microsystems | | |
| no image | Stanley | スタンレー | https://www.stanley.co.jp/ |
| no image | STMicroelectronics | | |
| no image | Synergy Semiconductor | | |
| no image | Synertek | | |
