| Company name | Reg. code |
|---|---|
| DZEROM OÜ kustutatud | 10390752 |
| DZEM OÜ | 16440304 |
| MAEROM OÜ | 14408294 |
| DEMROM OÜ | 12062822 |
| VEROM OÜ | 16332253 |
| KEROM OÜ | 10654010 |
| AEROM OÜ | 17480085 |
| TEROM OÜ | 16173174 |
| ZEROX OÜ | 17288672 |
| ZOROM OÜ kustutatud | 11714487 |
| SEROM OÜ | 12099624 |
| DELOM OÜ | 16208665 |
| DANROM AUTO OÜ kustutatud | 10996070 |
| ELEROM HALDUSED OÜ (former name Terviseamps OÜ) | 16019266 |
| DEEPROM TECHNOLOGY OÜ kustutatud | 16305606 |
| ALEROM GROUP OÜ (former name Disain ja Turundus OÜ) | 11900209 |
| DEERUM HALDUS OÜ kustutatud | 12177548 |
| VEROM PARTNER OÜ | 14750963 |
| DERON INVEST OÜ kustutatud (former name DERON Invest UÜ) | 14726634 |
| DIROM GROUP OÜ kustutatud | 12452256 |
| ZEROS GROUP OÜ | 16572135 |
| LEROM CONSULTING OÜ | 16078257 |
| ZERON GROUP OÜ kustutatud | 12332210 |
| DERMO INVESTEERINGUD OÜ | 16314456 |
| OZERO HOLDING OÜ | 12774244 |
| DEL DUERO OÜ kustutatud | 10977670 |
| GEROM EHITUS OÜ | 14566811 |
| MEROM EHITUS OÜ kustutatud | 14866826 |
| ZERO-00 OÜ kustutatud (former name FLIGHTTU OÜ) | 14453509 |
| A.D ZERUM OÜ kustutatud | 14416454 |
| ZERO MANAGEMENT OÜ | 12764978 |
| ZERO8 INVEST OÜ kustutatud | 16436001 |
| ZERO WASTE OÜ | 14845342 |
| ZERO TERRAIN OÜ (former name Energiasalv Valdus OÜ) | 14010321 |
| ZERO PRODUCTION OÜ | 12774818 |
| FRAMEWORK ZERO OÜ (former name ENIT HR OÜ) | 16890941 |
| ZERO TEENUSED OÜ | 16948408 |
| CODE ZERO OÜ kustutatud | 14520341 |
| ZERO2ONE OÜ | 16158281 |
| ZERO TECHNOLOGIES OÜ | 11016228 |
| ZERO TRADE OÜ kustutatud | 10133417 |
| TRAILING ZERO OÜ | 17070134 |
| DERO PUIT OÜ (former name Tero Puit OÜ) | 16009977 |
| BLIND ZERO OÜ | 14840367 |
| PERFECT DERM OÜ | 17421065 |
| BELOW ZERO OÜ kustutatud | 16614419 |
| ZERO DRINKS OÜ | 16153237 |
| ZERO SLEEP OÜ | 16784110 |
| ZERO MEDIA OÜ | 10364677 |
| ZERO TAPA OÜ | 17388014 |