| Company name | Reg. code |
|---|---|
| R&R TECH OÜ | 12451274 |
| R-TECH OÜ kustutatud | 12364285 |
| R-TECH RAKENNUS OÜ | 14466363 |
| COMPOTEXA OÜ kustutatud (former name ELINTA robotics OÜ) | 14444108 |
| TECH RD OÜ | 17140596 |
| RK TECH OÜ | 16832777 |
| RMA TECH OÜ | 17386736 |
| RVI TECH OÜ | 16865506 |
| RCB TECH OÜ kustutatud | 12857208 |
| RAK TECH OÜ kustutatud | 11178681 |
| RNJ TECH OÜ kustutatud | 12738372 |
| ROCK TECH OÜ | 12996654 |
| REDI TECH OÜ | 17322898 |
| RELY TECH OÜ | 17005007 |
| RIBIN TECH OÜ | 14834252 |
| RHAND TECH OÜ kustutatud | 16108679 |
| ROSIN TECH OÜ | 16964195 |
| RIMAR TECH OÜ | 17302509 |
| RECCE TECH OÜ | 17117953 |
| RED RAM TECHNOLOGY OÜ | 16173168 |
| RZ TECHNICS OÜ | 12038309 |
| RENTTY TECH OÜ | 16418523 |
| RASIRIS TECH OÜ | 14996032 |
| RIVERTY TECH OÜ (former name AFS IT Services Estonia OÜ) | 14530871 |
| RYVERIS TECH OÜ | 17444505 |
| ROHE TECHNIK OÜ | 17165314 |
| REN TECHNICS OÜ kustutatud | 11944112 |
| RS TECHNOLOGY OÜ kustutatud | 11990299 |
| RM TECHNOLOGY OÜ | 17468670 |
| RAUDSELT TECH OÜ | 16945168 |
| ROST MANN TECH OÜ kustutatud | 12409289 |
| REVBOOST TECH OÜ | 16882404 |
| RTC TECHNOLOGY OÜ | 16048262 |
| RIVEREACH TECH OÜ kustutatud | 16781614 |
| VSP REMOTE TECH OÜ kustutatud | 16100531 |
| RVO TECHNOLOGY OÜ | 14916100 |
| RSJ TECHNOLOGY OÜ kustutatud (former name Hyco Technology OÜ) | 12403275 |
| RALF TECHNOLOGY OÜ | 17434263 |
| RL TECHNOLOGIES OÜ | 12691127 |
| R8 TECHNOLOGIES OÜ (former name ruut8 OÜ) | 14219268 |
| RYTM TECHNOLOGY OÜ | 17155847 |
| RS TECHNOLOGIES OÜ | 16712814 |
| RSTECH MANAGEMENT OÜ (former name Raduga Technical Management OÜ) | 14286112 |
| VIVICTA OÜ (former name Rooting Tech Services Estonia OÜ) | 16817772 |
| RR TECHSOLUTIONS OÜ | 17240010 |
| RBK TECHNOLOGIES OÜ | 14127425 |
| RAOUF TECHNOLOGY OÜ kustutatud | 16706145 |
| RUUNT TECHNOLOGY OÜ | 16861891 |
| ROBOSTELLAR TECH OÜ kustutatud | 14907100 |
| RDN TECHNOLOGIES OÜ (former name Radionetworks OÜ) | 12771412 |