- RetroSound
- retrospec
- Retrospect
- Retrotec
- RetroTouch
- Retsch
- Returnstar
- Returnstar Interactive Tech
- REUTER
- Reutlinger
- REV
- REV Ritter
- Rev-A-Shelf
- Revamp
- Revatak
- Reveal
- Revel
- Revell
- Revell Control
- Revenge
- ReVent
- REVENTON
- Reverberi
- Revere
- Reverie
- Reverse Osmosis
- Reviber
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- Revive
- RevJams
- Revlon
- Revo
- Revoace
- REVOE
- Revogi Innovation
- Revolabs
- revolt
- Revoltec
- Revolution
- Revolution 3D Printers
- Revolv
- Revosys