| Company name | Reg. code |
|---|---|
| SRTS OÜ | 14699541 |
| SRTP HOLDING OÜ (former name Smartplan OÜ) | 14674802 |
| SRTJ TEENUS OÜ | 14924156 |
| CHALLENGER SRT OÜ | 17131189 |
| SRT VISION OÜ | 17327716 |
| SRT LOGISTIC OÜ | 17175672 |
| SRT ARENDUS OÜ (former name Artist & Music Factory OÜ) | 12792644 |
| SRT SERVICES OÜ | 14948748 |
| SRT QUICKLY OÜ | 16840133 |
| SRT PARTNER OÜ kustutatud | 12867997 |
| SRT TRADING OÜ kustutatud | 12811100 |
| SRT MANAGEMENT OÜ | 16670582 |
| SRT TORU & VENTILATSIOONITÖÖD OÜ | 14617661 |
| SRT SMART SOLUTIONS OÜ | 14443617 |
| SRT INVEST GROUP OÜ | 16645130 |
| P&E CAPITAL OÜ (former name SRTT HoldCo OÜ) | 16637685 |
| SITS&SATS OÜ | 14601482 |
| SIRTS & SÄRTS OÜ kustutatud | 12200945 |
| SRT GLOBAL IC VE DIS TICARET OÜ | 14953123 |
| PROEST OÜ (former name SRT Invest OÜ) | 12634595 |
| SIRTS JA SÄRTS OÜ | 12782611 |
| SRT REC GROUP UÜ kustutatud (former name SRT Rec Group OÜ) | 12487042 |
| SUTS OÜ | 14658418 |
| SORTS OÜ | 14412290 |
| JRTS OÜ | 16249470 |
| STTS OÜ | 10099318 |
| SIRTS OÜ kustutatud | 12931502 |
| SERTS OÜ kustutatud | 12021763 |
| SÄRTS OÜ | 10662498 |
| 2RTS OÜ | 16804083 |
| RTS OÜ kustutatud | 10306088 |
| SRS OÜ | 16024528 |
| M ARTS OÜ | 14488057 |
| REIMAGINE ARTS OÜ kustutatud | 16105741 |
| BRAND ARTS OÜ kustutatud | 11507469 |
| AMENALYME ARTS OÜ | 16917700 |
| CYC4ARTS OÜ | 17327030 |
| MEDICAL ARTS OÜ | 17424767 |
| LAHE SUTS OÜ kustutatud | 16274691 |
| ERTS EKKA OÜ kustutatud (former name aktsiaselts ERTS EKKA) | 11406484 |
| ARTS KONTOR OÜ | 11488111 |
| PRIME ARTS OÜ | 17090869 |
| CREATIVE ARTS OÜ kustutatud | 12631088 |
| MIDIANKAI ARTS OÜ | 12221456 |
| ARTS LONDON OÜ kustutatud | 11064747 |
| SQTS&TIIT OÜ kustutatud | 11237030 |
| PERFORMING ARTS OÜ | 16686459 |
| HRTS HALDUS OÜ kustutatud | 16593516 |
| MAGIA ARTS OÜ | 11269018 |
| TREE ARTS OÜ | 16925444 |