| Company name | Reg. code |
|---|---|
| HUUB MTÜ | 80572420 |
| VÕRU HUUB MTÜ (former name EDUTEGUR MTÜ) | 80587775 |
| KÖSTRE HUUB MTÜ | 80670128 |
| KIRJU KUUB MTÜ | 80381039 |
| TÄHVENA HUB MTÜ (former name MTÜ Tähvena sepikoda) | 80412780 |
| HUB TALLINN MTÜ | 80337765 |
| YOUTH HUB MTÜ | 80665950 |
| RUN HUB MTÜ | 80660517 |
| KISSA HUB MTÜ | 80269897 |
| TAHE HUB MTÜ | 80621437 |
| HUB HIIUMAA MTÜ kustutatud | 80580980 |
| SUCCESS HUB ESTONIA MTÜ | 80557254 |
| NORDIC MOBILITY HUB MTÜ | 80657470 |
| SOCIAL EQUATION HUB MTÜ | 80665481 |
| ART HUB EST MTÜ kustutatud | 80403249 |
| GLOBAL SHAPERS TALLINN HUB MTÜ | 80661158 |
| CENTRAL ESTONIA ENTERPRISE HUB MTÜ | 80656559 |
| INTEGRITY AND LEARNING HUB MTÜ (former name Grass Goals Support Association MTÜ) | 80643798 |
| AFRICA EUROPE YOUTH COOPERATION HUB MTÜ | 80631393 |