- Radientum
- RAIN
- Rakka
- Random Potion
- Rappta Therapeutics
- Ratas.io
- Rate the Job
- Ravogen
- Raxalle
- Reactored
- React & Share
- Reality Crisis
- Realm
- ReceiptHero
- Recharge
- reconfigured
- Redhill Games
- Redigen
- Red Nettle Studios
- Redono
- Red Stage Entertainment
- ReFaMo
- Refine Reality
- Rehaboo
- ReMinded
- Remomedi
- Renda
- Rentfol.io
- Rentmania
- ReOrbit
- Resimator
- Resistomap
- Resitance Games
- ResQ Club
- Rester
- Retro-EV
- Return Entertainment
- Reveel
- Rigged Mind
- Riots Global
- Rive
- Riverrecycle
- RMK Vehicle Corporation
- Robes Rental
- RoboMed
- RockOn
- Rock Paper Scissors
- Rohje
- Rokote Laboratories
- Romify
- Rona
- RoostLab
- RootRoo
- Root Signals
- Rounders Entertainment
- Round Zero
- ROVJOK
- RumbleTools
- Rundit
- Ruokaboksi
- Ruuvi Innovations