| Company name | Reg. code |
|---|---|
| FIRZEN OÜ | 12507738 |
| FIRMEN OÜ | 10359920 |
| FIRENA PARTNERS OÜ (former name Nemelex OÜ) | 14385201 |
| FIRMEX INVESTEERINGUD OÜ kustutatud | 12051184 |
| FIRENA GROUP OÜ (former name Beauty4u8 OÜ) | 14029480 |
| FIRENA CAPITAL OÜ kustutatud (former name Firena Rental UÜ) | 14143312 |
| FIRTON KUB OÜ kustutatud | 14358716 |
| FIRENA PROJECT OÜ (former name Firena Project UÜ) | 14106015 |
| FIROZENE OSIGURANJE OÜ kustutatud | 11160095 |
| FIRENA ADVISER OÜ (former name Firena Adviser UÜ) | 14945773 |
| FIRENA IMPEX OÜ (former name Firena Impex UÜ) | 14250060 |
| FRIDEN OÜ | 14407159 |
| MIRLEN OÜ | 11938560 |
| BIRKEN OÜ | 14794989 |
| KITZEN OÜ | 14654001 |
| FINAZEN OÜ | 17059960 |
| RIRAEN OÜ | 17293934 |
| FERGEN OÜ | 17331149 |
| AIREEN OÜ | 12118758 |
| OERZEN OÜ | 12092541 |
| ZINZEN OÜ kustutatud | 12554643 |
| FIZZEE OÜ | 14670017 |
| MIRHEN OÜ | 12181745 |
| "WIRKEN" OÜ kustutatud (former name WIRKEN) | 10024042 |
| FERGEN OÜ kustutatud | 11132526 |
| SIRGEN OÜ | 14308291 |
| FIXREN OÜ | 11038804 |
| FORSEN OÜ | 14758485 |
| MIRDEN OÜ | 10943694 |
| VIAZEN OÜ | 17316322 |
| FRIZER OÜ | 16214602 |
| FORKEN OÜ | 11225311 |
| FERREN OÜ | 12704835 |
| FORDEN OÜ | 12738573 |
| FROZEN.BRO OÜ | 10133512 |
| FROZEN KITCHEN OÜ | 16749757 |
| FROZEN STONES OÜ | 12555588 |
| FORCEN GRUPP OÜ | 11201799 |
| FROZEN LEMONS OÜ kustutatud | 12705608 |
| TIRKEN PROJEKT OÜ | 10790306 |
| JIRGEN TRADE OÜ | 14694503 |
| PILZEN GRUPP OÜ | 12156078 |
| MIRTEN BÜROO OÜ (former name Mirten Büroo UÜ) | 16056994 |
| FERREN P OÜ (former name Pinered P317 OÜ) | 14768532 |
| SIRDEN AUTO OÜ kustutatud | 10932621 |
| PRO-VIRREN OÜ (former name Virren OÜ) | 14057127 |
| FERDEN PROJEKT OÜ kustutatud | 11607099 |
| FROZEN KINGDOM OÜ | 12069764 |
| BIOZEN LIMITED OÜ kustutatud | 16684271 |
| BALTI SIREEN OÜ | 17173868 |