SAll Manufacturers
- Samsung
- Samtec
- ST
- Schneider-Electric
- Silicon-Labs
- Sagrad
- SanDisk
- Sanken
- Sanyo
- Sanyo Denki
- Sanyo-Denki
- Sargent-Tools
- Schaffner
- Schmart
- Schneider Electric
- SCHURTER
- SCS-Desco
- Seeed
- SEGGER
- SEMELAB
- Semflex
- SEMITEC
- Semtech
- Sensata
- Sensata Technologies
- Sensirion
- SENSOTEC
- Seoul
- Serious
- SERPAC
- Sharks-Cove
- Sharp
- Shin Chin
- Shindengen
- Sierra
- Sigma
- Signal Transformer
- Signum
- Silego
- Silego Technology
- Silex
- Silicon
- Silicon Labs
- Silvertronic
- Simpson
- Sine-Systems
- Siretta
- SiTime
- SkyeTek
- Skyworks
- SL-Power
- SMART
- Soberton
- SolderCore
- Song Chuan
- Song-Chuan
- Souriau
- Spansion
- SparkFun
- Spectra
- Spectra-Strip
- Spectrum
- Spectrum Digital
- Sprague
- Sprague Goodman
- SSI
- SST
- Stackpole
- Staco
- Standex
- Stanley
- Startco
- Stewart
- Storm
- Sullins
- Sumida
- Sunbank
- Sunbrite
- SunLED
- Sunon
- Susumu
- SV-Microwave
- SVTronics
- Swanstrom
- Swissbit
- Switchcraft
- Syfer
- Synapse
- SYNC
