| Company name | Reg. code |
|---|---|
| OPPERT OÜ kustutatud | 12617214 |
| OPPAR OÜ | 14637310 |
| 5+EXPERT OÜ | 12763387 |
| COPPERY OÜ | 11036366 |
| MOPPER OÜ | 12428223 |
| APSERT OÜ | 17340088 |
| OSBERT OÜ | 17021199 |
| BOPPER OÜ | 16942158 |
| OSPRET OÜ | 17417253 |
| OSPERA OÜ | 14450698 |
| TOPWERT OÜ | 10487701 |
| IXPERT OÜ | 14730618 |
| ÕPIERI OÜ | 16401764 |
| EXPERT OÜ (former name Taksopluss OÜ) | 12813168 |
| HOPPER OÜ | 16111925 |
| OPZER OÜ | 16713529 |
| OPNET OÜ | 11171207 |
| "OPTER" OÜ (former name Opter) | 10320817 |
| OPERE OÜ | 17280274 |
| UPPER OÜ kustutatud | 10797910 |
| OVERT OÜ | 10770976 |
| OPERA OÜ | 12048756 |
| OFERT OÜ | 16093707 |
| APPER OÜ (former name ML Kaubandus OÜ) | 14335299 |
| EGAMING EXPERT OÜ | 12706142 |
| AVIATION EXPERT OÜ | 12738828 |
| PACK EXPERT OÜ | 14921212 |
| EXPERT MODE OÜ | 16204696 |
| BADRUM-EXPERT OÜ kustutatud (former name Money-växel OÜ) | 12484539 |
| EXPERT4IT OÜ kustutatud | 14906767 |
| EXPERT TRAVEL OÜ kustutatud | 14035522 |
| MP EXPERT OÜ | 10493179 |
| FURNITURE EXPERT OÜ | 11171294 |
| HOPPET ARENDUS OÜ kustutatud | 12425791 |
| RECYCLING EXPERT OÜ kustutatud | 16230469 |
| MVS EXPERT OÜ | 17379699 |
| METUS-EXPERT OÜ kustutatud | 16273800 |
| OLBERT ADVISORY OÜ kustutatud | 16974537 |
| OLBERT CAPITAL OÜ | 16738268 |
| CAR EXPERT OÜ kustutatud | 12435039 |
| GALEAS HOPPET OÜ | 12167857 |
| COLORPLAN EXPERT OÜ | 12949117 |
| GUIDE EXPERT OÜ | 12072223 |
| CONSULTING EXPERT OÜ kustutatud | 12744384 |
| DRIVER EXPERT OÜ (former name Bankify OÜ) | 12947035 |
| MI EXPERT OÜ kustutatud | 12266708 |
| EXPERT-EUROPE OÜ kustutatud | 12368107 |
| METAL EXPERT OÜ kustutatud | 11947760 |
| WISE-EXPERT OÜ | 12710407 |
| FENCING EXPERT OÜ | 16652153 |