- SMILE ORCHID
- SML
- SMSオーディオ
- Snapmaker
- SNIDEL
- SNOOPY×OLD BETTY'S
- SOCIALTECH
- SODA MINI
- sodastream
- SoftBank SELECTION
- SOIL(ファッション)
- SOL REPUBLIC
- SOL(cado)
- SOLADEY
- SOLEIL(ASAHI)
- SOLEMOOD
- Solidigm
- SOLIDO
- SOLOMARK
- SOLOMON
- SOLOSHOT
- Solpa
- SOLUTION∞
- SOMIC
- SONICSPORT
- Sonix
- Sonnar
- SONNE
- SONNET（パソコン）
- Sonos
- SOPHNET.
- SOPPY
- SOTEC
- SOTOMO
- SOUL
- SOUL by Ludacris
- SOUND ANCHORS
- SOUND BLASTER
- SOUND BLASTER X
- Sound by Sweden