| Company name | Reg. code |
|---|---|
| R24BUILDING OÜ (former name Moving Group OÜ) | 14460739 |
| R.P BUILDING OÜ | 14670844 |
| R.M BUILDING OÜ | 17029350 |
| U.R BUILDING OÜ kustutatud | 11407220 |
| K.R BUILDING OÜ | 14354380 |
| R&K BUILDING GROUP OÜ | 12574640 |
| D.R.&U.BUILDING OÜ kustutatud (former name Opaal SV OÜ) | 14087766 |
| RIFNORD OÜ (former name R.R Building OÜ) | 14850535 |
| T.A.R.B. TECHNOLOGIES APPLIED TO RIVER BUILDINGS OÜ | 14305045 |
| RT BUILDING OÜ kustutatud | 16685566 |
| RJ BUILDING OÜ kustutatud | 12470024 |
| RK BUILDING OÜ | 14115310 |
| RS BUILDING OÜ kustutatud | 12346270 |
| RKV BUILDING OÜ | 12910581 |
| RHM BUILDING OÜ | 11657039 |
| RNX BUILDING OÜ kustutatud | 14431599 |
| RL BUILDINGS OÜ | 16233060 |
| RARE BUILDING OÜ | 11376317 |
| REMMU BUILDING OÜ | 16017994 |
| RAIKU BUILDING OÜ | 11694796 |
| ROVEX BUILDING OÜ kustutatud (former name Rovex Building UÜ) | 16010450 |
| REXTER BUILDING OÜ kustutatud (former name Rexter Building UÜ) | 14318616 |
| REVALIA BUILDING OÜ kustutatud (former name Revalia Building UÜ) | 12951605 |
| REVOTEK BUILDING OÜ kustutatud | 11973823 |
| RENOTEK BUILDING OÜ | 16397206 |
| RAUDEL BUILDINGS OÜ | 16952412 |
| RAMSIMAR BUILDING OÜ kustutatud | 12500208 |
| REVERATO BUILDING OÜ (former name Reverato Building UÜ) | 14127610 |
| REDBOARD BUILDING OÜ kustutatud | 12154702 |
| COLPETTY NUGEGODA OÜ kustutatud (former name Refmek Building OÜ) | 14057713 |
| PRO ROOFERS BUILDING OÜ | 16245287 |
| RSIMEDIA OÜ (former name Rossi Apartments OÜ) | 12885707 |
| ROLSON BUILDING BUSINESS OÜ (former name Rolson Ehitus) | 11672331 |
| EHITUSKESKUSED EESTIS OÜ (former name RentimisEst OÜ) | 14440116 |
| MAFALALA EMBAIXADA OÜ kustutatud (former name Hansa Restauraator OÜ) | 12958406 |
| ROYAL BUILDING INSTALLATION OÜ kustutatud | 12387122 |
| BUILDING INFORMATION RESEARCHERS AND DEVELOPERS OÜ | 14879562 |