| Company name | Reg. code |
|---|---|
| CONTESTRA OÜ | 17474570 |
| CONVESTIA OÜ kustutatud | 11092695 |
| CONTESTOR OÜ | 11078790 |
| CONTESSA OÜ | 11664217 |
| CONTENTA OÜ | 16207602 |
| CONECTRA OÜ | 10298667 |
| CONSTRA OÜ (former name Heidi Granqvist Translation OÜ) | 12885162 |
| CONTESTER TECHNOLOGIES OÜ | 14965646 |
| CONECTRA FINANCE OÜ | 17240688 |
| CONTERRA CONSULTING OÜ | 14540183 |
| CONTEST TRADE OÜ | 10824104 |
| CONSTRA EHITUS OÜ | 16301614 |
| MONESTRA OÜ kustutatud | 14298473 |
| COMESTRA HOLDING OÜ kustutatud | 11906206 |
| ADVERTENCE OÜ kustutatud (former name Advertaly OÜ) | 14671933 |