| Company name | Reg. code |
|---|---|
| GERRA OÜ | 14510561 |
| GERMA OÜ | 16490644 |
| GERRO OÜ | 16394952 |
| GERORA OÜ | 16776197 |
| GERDA INVESTEERINGUD OÜ | 11419765 |
| GERDA VS OÜ | 10585763 |
| GERDA CATERING OÜ | 16438098 |
| JULIA GERDA OÜ | 17064369 |
| GERDA MILLER OÜ | 12963407 |
| GERDA TSEPKIN OÜ | 16033415 |
| GERDA STYLISH OÜ | 14644830 |
| GERA CONCEPT OÜ kustutatud | 11745298 |
| GERA-IT OÜ | 14585731 |
| PEREARST GERTA SONTAK OÜ | 12197775 |
| GERRANTE OÜ | 10087835 |
| GERRAWA TUZKUS OÜ kustutatud (former name Kliimaproffid OÜ) | 14505235 |
| GEARA OÜ | 17161405 |
| NERRA OÜ | 17137105 |
| TERRA8 OÜ kustutatud | 16502815 |
| TERRA OÜ (former name OÜ Pildiküla-Pilguse Põllud ja Metsad) | 10817328 |
| ERRA OÜ kustutatud | 16320190 |
| TERRA INVEST OÜ | 10921801 |
| SERRA GCVC OÜ | 17183619 |
| TERRA NORDIC OÜ kustutatud | 11485489 |
| TERRA NAVITAS OÜ kustutatud | 16520405 |
| TERRA PATRIA OÜ kustutatud | 12157244 |
| AQUA TERRA OÜ | 16657943 |
| TERRA MANAGEMENT OÜ | 12973417 |
| ÄÄRE SERRA OÜ kustutatud | 10585266 |
| MOONI TERRA OÜ | 16330509 |
| SOLVENTUS TERRA OÜ | 17035362 |
| TERRA-INTERNATIONAL OÜ | 17116793 |
| GORRA GRUPP OÜ | 14321481 |
| TERRA FENNIA OÜ kustutatud | 10708579 |
| ALTA TERRA OÜ | 16978050 |
| KERRA-TRADE OÜ | 10894116 |
| TERRA IMPEX OÜ | 12306266 |
| TERRA SECURE OÜ | 17235472 |
| SERRA TECH OÜ | 17010787 |
| TERRA HOSPITALITY OÜ | 17458200 |
| ZERRA DUBE OÜ | 17082189 |
| TERRA YUME OÜ | 16953334 |
| TERRA NUOVA OÜ | 16853265 |
| TERRA VIRTUS OÜ (former name OÜ Ruuvit) | 14353660 |
| DERRA FINANCE OÜ | 16662594 |
| MERRA MASSAAŽ OÜ | 16682668 |
| HERRA HARAKKA OÜ | 17231382 |
| TERRA MOTORS OÜ kustutatud | 12075440 |
| TERRA CONSULT OÜ kustutatud | 10342115 |
| TERRA IGNOTUS OÜ (former name LabTest Center OÜ) | 11339306 |