- Radientum
- RAIN
- Rakka
- Random Potion
- Rapport
- Rappta Therapeutics
- Ratas.io
- Rate the Job
- Ravogen
- Raxalle
- REACHLaw
- Reactored
- React & Share
- Readerstage
- ReadPeak
- Reality Crisis
- Realm
- Rebelvolt Oy
- ReceiptHero
- Recharge
- RecoApp
- reconfigured
- RecRight
- Redhill Games
- Redigen
- Red Nettle Studios
- Redono
- Red Stage Entertainment
- ReFaMo
- Refine Reality
- Refox
- Rehaboo
- Relationship Games
- RELEX
- ReMinded
- Remomedi
- RemoteA
- Renda
- Renow
- Rentfol.io
- Rentmania
- ReOrbit
- RePack
- Replendo
- Resimator
- Resistomap
- ResQ Club
- Rester
- Retro-EV
- Return Entertainment
- Reveel
- Richie
- Rigged Mind
- Riots Global
- Riskpointer
- Rive
- Riverrecycle
- Rized (Heavyweight Rex)
- R-Klinik
- RMK Vehicle Corporation
- RoadCloud
- Robes Rental
- RoboMed
- Rockodile Games
- RockOn
- Rock Paper Scissors
- Rocsole
- Roger-GPS
- Rohje
- Roidu
- Rokote Laboratories
- Rollector.ai
- Rollyy Oy
- Romify
- Rona
- Roomdesk
- RoostLab
- RootRoo
- Root Signals
- Rounders Entertainment
- Rout IO Technologies
- Rovio
- ROVJOK
- Rugged Tooling
- Ruisvoima
- RumbleTools
- Rundit
- Runteq
- Ruokaboksi
- Rust0 Games
- Ruuvi Innovations
