Marques
- Safescan
- Saft
- SAGEM
- SALICRU
- Samsung
- Samyang
- Sandberg
- Sandisk
- Sanotech
- SANYO
- SAPPHIRE
- Sasco
- Satechi
- Sato
- Saville Audio Visual
- SC Johnson
- Scale Computing
- Schneider AG
- SCHNEIDER ELECTRIC
- Scotch
- Scotch-Brite
- Scotchgard
- SCREENBEAM
- Screenint
- Scythe
- Seagate
- Seagull
- SEALPATH
- Seasonic
- Securepoint
- SECUREWORKS
- Securit
- Sedna
- Seek Thermal
- SEH
- Seiko Instruments
- Sellotape
- SENNHEISER
- Senstar
- SEVERIN
- Sewoo
- Sharkoon
- Sharp
- Sharpie
- Shield
- Show-me
- Shure
- Shuttle
- Siemens
- Sigel
- SIGMA
- SIGNAGELIVE
- signotec
- Silicon Power
- Silva Schneider
- SILVER PEAK
- SilverNet
- Silverstone
- Silvine
- SIM2
- Sirui
- Sitecom
- SK Hynix
- Skross
- Skullcandy
- Skyhigh Security
- Smart
- SMART Technologies
- Smartbox
- Smarties
- SmartKeeper
- SmartMetals
- SMEG
- SMS Smart Media Solutions
- Snakebyte
- Snom
- Snopake
- SNT
- SOCKET MOBILE
- Solarflare Communications
- SOLIDIGM
- SONICWALL
- Sonim
- Sonnet
- sonnettech
- Sony
- Sophos
- SOTI
- Sound United
- Soundpeats
- Sparkle Technology
- Speck
- Spectralink
- SPEEDLINK
- SPIGEN
- SPIGRAPH
- Spire
- SPIRIT OF GAMER
- Sprint
- Stabilo
- Staedtler
- Standivarius
- STAR
- Star Micronics
- Starbucks
- Starlink
- StarTech.com
- Static Control Components
- STAYLINKED
- Steelcase
- STEELPLAY
- STEELSERIES
- Steinbeis
- StepOver International
- STM
- STORAGECRAFT
- Stormagic
- STORMSHIELD
- STORTREC
- Strong
- Studio Proper
- SUMUP
- SUN
- Sunix
- SUNMI
- Super Talent Technology
- Supermicro
- SureFire
- SurgeX
- SUSE
- Suunto
- Swarfega
- Swash
- Swizzels
- Swordfish
- Symantec
- SYNOLOGY
- SYSDEV