| Company name | Reg. code |
|---|---|
| MEDBOOST OÜ | 16839762 |
| MEDIABOOST OÜ | 14818187 |
| MEDBOOK OÜ | 12750597 |
| MEDBOOK GLOBAL OÜ | 17472364 |
| SEOBOOST OÜ | 16909652 |
| ZENBOOST OÜ | 17053006 |
| REVBOOST TECH OÜ | 16882404 |
| SARVAS KIS & PARTNERS OÜ kustutatud (former name AVIACASH OÜ) | 14220644 |