Companies
- Roro
- Rose City Games
- RosePortal Games
- Roucan
- Round 8 Studio
- Roundhouse Studios
- Rovio Entertainment
- Rovio Mobile Ltd
- Row Sham Bow
- Royal Holloway, University of London
- RSM UK
- RTL Enterprises
- Ruckus Games
- Ruffian Games
- Rumble Entertainment
- Rundisc
- Runic Games
- Runic Raven Entertainment LLC
- Rusty Lake
- Ryu Ga Gotoku Studio
- Saber Interactive
- Sabotage Studio
- Sad Cat Studios
- Sad Panda Studios
- Safe In Our World