| Name | Region |
|---|---|
| Re:zume.works | |
| Reactor.ua | |
| Reaktivate | Kiev |
| Real Seven, LLC | Kiev |
| Red Chameleon | |
| Red Jumpers | |
| Red Monkey | |
| RedCat | Kharkiv |
| RedDuck | |
| Redentu | |
| Redlab | |
| Redsoup Software | Kharkiv |
| Redwerk | |
| Reenbit | |
| Reface | |
| Relevant Software LLC | Lviv |
| Rem-Tele | Kiev |
| Remarkable Technology | Kiev |
| Resense | |
| Respect Studio | Lviv |
| Respeecher | |
| Retainly | |
| RGB | Kiev |
| Richmond | Kiev |
| Rightapplications | |
| RIM2000 | Dnipropetrovsk |
| RIVERIT | |
| RMachine | |
| Robo.House | |
| Robocode | |
| Robomate | |
| Robota.ua | |
| Rocket DAO | |
| Rocket Harbor | |
| Roman Shtogrin | Kiev |
| Roman.company | Kiev |
| Rontar | |
| RonyaSoft | Volyn |
| Room15 | |
| Roosch Ventures | |
| Roosh Investment Group | |
| Routers.com.ua | Kiev |
| Rozdoum | Kharkiv |
| Rozetka | Kiev |
| RRC | Kiev |
| RTS Ukraine | Kiev |
| Rubika Digital Agency | |
| RX-NAME | Kiev |
| Rythmex | |
| S&T Ukraine | Kiev |