| Company name | Reg. code |
|---|---|
| SIREKAI UÜ | 14487419 |
| SIREKOM OÜ kustutatud (former name Sirekom UÜ) | 14377352 |
| SIRENAL EHITUS OÜ (former name Sirenal Ehitus UÜ) | 16631524 |
| LIZ CLOSET OÜ kustutatud (former name Sirela Stuudio UÜ) | 14756753 |
| P.LEIS KONSULTATSIOONID OÜ kustutatud (former name Sireks Hooldus UÜ) | 12858797 |
| BRAVIDA BALTIC OÜ (former name Sirena Games UÜ) | 16510602 |
| KARMO RAKENNUS OÜ (former name Sirena Teenus UÜ) | 16510648 |
| V.H TEENUSED OÜ (former name Sirela Salong UÜ) | 16000031 |
| GREEN FUTURE OÜ (former name Sireko Teenus UÜ) | 14834358 |
| AABOUTIQUE OÜ (former name Sirela Stuudio UÜ) | 12850318 |
| KOURAMOKE SALUBILI OÜ (former name Sirena Service UÜ) | 16510861 |
| BUNDUNG TABOKOTO OÜ (former name Arten Kaubandus UÜ) | 14483092 |
| ACHAB ISABIS OÜ (former name Arento Invest UÜ) | 14559870 |