| Company name | Reg. code |
|---|---|
| EXPERTIKA OÜ | 12595895 |
| EXPERTIA OÜ | 17267546 |
| EXPERTIVE OÜ | 16734170 |
| EXPERTISM OÜ (former name Owais Afaq OÜ) | 16080254 |
| EXPORTIA OÜ | 12392318 |
| EXPERTEK OÜ (former name Itelia Pluss OÜ) | 12918536 |
| ATLAS EXPERTISE OÜ | 17342845 |
| EXPERTION TECHNOLOGY OÜ | 17112720 |
| BUREAU INDUSTRIEL EXPERTISE OÜ | 12323642 |
| DEVELOPMENT EXPERTISE LAB OÜ | 17065133 |
| AIRLINE PROMOTION & EXPERTISE OÜ | 10649345 |
| J.B. EXPERTISE OÜ | 14565527 |
| R.E.EXPERTISE&MARKETING OÜ | 16609269 |
| TRIA ADVICE, EXPERTISE AND TRADE OÜ | 17468693 |
| LUMBERER OÜ kustutatud (former name Expertise service OÜ) | 14711259 |
| AI.HEALTH OÜ (former name HK ExpertIT OÜ) | 12332109 |