- SLACK-PARR
- SPM
- STAR HYDRAULICS
- STENNER
- SEA-LAND
- SCHNEIDER
- SELET
- STAUBLI
- SPECKENDRUMAG
- SPECK(SPECK PUMPEN)
- SOR
- STONEL
- SCHMIDT-KUPPLUNG
- SUMMIT
- Silicon Designs
- SEALCO
- SILBERSCHNITT
- SENVEX
- SENDX
- STERLINGSIHI
- SPANDAU
- SONDERMANN
- SETTIMA
- SCHMALENBERGER
- SALAMI
- SACEMI
- SECOMAK
- sms-tork
- SENSIT
- Sommer-automatic
- Supercombinata
- Sprague
- Simtronics
- START
- SIEBEC
- Schwaderer
- Sentry
- SOCITEC
- S&W
- Sunnex
- Shaw
- SENSIRION
- SECOMAM
- Sypris T&M - FW Bell
- Sensorwerks
- satron
- SIMEX
- SULZER
- SOGEAC
- SWR
- Schuf fetterolf
- SIMA
- Sensocon
- Spectrex
- STERN
- singer valve
- SIPOS
- SK Valve
- SSH-STAINLESS
- SAMSON