| Company name | Reg. code |
|---|---|
| CERERA UÜ | 12572764 |
| R.K INSTALL OÜ (former name Derexa UÜ) | 14518410 |
| MASTIRIDA OÜ (former name Metera UÜ) | 14124777 |
| TUHAT TERVIST OÜ (former name Merena Disain UÜ) | 14688840 |
| KERANA EHITUSGRUPP OÜ kustutatud (former name Kemera Service UÜ) | 12950882 |
| RENERA SOLUTIONS OÜ (former name Renera Solutions UÜ) | 14437723 |
| MERENA TRANS OÜ (former name Merena Trans UÜ) | 14246845 |
| AAVIKU TEENUS OÜ kustutatud (former name Merena Teenus UÜ) | 14198980 |
| MERENA TEENUS OÜ (former name Merena Teenus UÜ) | 16801682 |
| REMERA GROUP OÜ (former name Remera Teenus UÜ) | 14913974 |
| KV TEHNIKA OÜ (former name Elera Ehitus UÜ) | 14404014 |
| MOHALALITOE KORUKORO OÜ (former name Metera Logistik UÜ) | 14165163 |
| TAKERA BALTIC OÜ (former name Trendplus UÜ) | 14419464 |
| WARONGO OKONJYWA OÜ kustutatud (former name Venera UÜ) | 12889421 |