| Company name | Reg. code |
|---|---|
| MT EQUESTRIAN MTÜ | 80625955 |
| ES EQUESTRIAN MTÜ | 80626096 |
| RSK EQUESTRIAN MTÜ kustutatud | 80338575 |
| TALTS EQUESTRIAN MTÜ | 80670074 |
| HT EQUESTRIAN TEAM MTÜ | 80635155 |
| ESTONIA EQUESTRIAN CLUB MTÜ (former name MTÜ JS Endurance Team) | 80401279 |
| SAPPHIRE EQUESTRIAN RATSAKLUBI MTÜ | 80653804 |
| RATSAKLUBI GRAMINA EQUESTRIAN TEAM MTÜ | 80635221 |
| RATSASPORDIKLUBI FENEST EQUESTRIAN MTÜ | 80581258 |
| RATSASPORDIKLUBI ARMA EQUESTRIAN CLUB MTÜ | 80666825 |
| RATSAKLUBI BLACK STALLION EQUESTRIAN CLUB MTÜ | 80135754 |