- SMILE ORCHID
- SMSオーディオ
- Snapmaker
- SNIDEL
- SNOOPY×OLD BETTY'S
- SODA MINI
- sodastream
- SoftBank SELECTION
- 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
- SOTOMO
- SOUL
- SOUL by Ludacris
- SOUND ANCHORS
- SOUND BLASTER X
- Sound by Sweden
- Sound Reality
- SOUND STORAGE（サウンドストレージ）
- Soundcore AeroFit
- Soundcore Space
- SOUNDFORM
- SoundWarrior
- Space Wonder View