- PURE HARMONIE
- Pure Hot+Cool
- Pure（Kone）
- Puro
- Puro Sound Labs
- Puzzle
- Pyle Audio
- Pシリーズ（ARCA SWISS）
- Q Acoustics
- Q-LiA
- QCY
- qdc
- QG1
- QNAP
- QoA
- QooCam
- Qtuo
- QUAD
- QUAD QUAD S series
- QUAD LOCK
- quadral
- QUADS
- QUALL
- Quantum
- Quantum(パソコン)
- quatix
- quattro arte
- QUIETPOINT
- Quintokuta
- Quolice
- R.A.T
- Rab
- RABLISS
- radiant
- RADIO EVA
- radius
- Raffaello
- RAGEBLUE
- RAIDMAX
- RAIJINTEK