| Company name | Reg. code |
|---|---|
| ATLETICA MTÜ | 80385346 |
| KOHTLA-JÄRVE KERGEJÕUSTIKUKLUBI ATLEETIKA MTÜ | 80021134 |
| SILLAMÄE ATLEETIKA KLUBI IMPULS MTÜ | 80189201 |
| STEEL ATHLETIC MTÜ | 80570467 |
| KT ATHLETICS MTÜ (former name Mittetulundusühing KRS ATHLETICS) | 80602991 |
| SPORDIKLUBI EVAIL-ATHLETICS MTÜ | 80145758 |
| ROMANENKOFF ATHLETIC CLUB MTÜ | 80633512 |
| ESTONIAN FEDERATION AIR POWER ATHLETICS MTÜ kustutatud | 80401954 |
| EUROPEN DRUG-FREE POWER ATHLETICS UNION MTÜ | 80265706 |
| SPORDISIDEMETE ÜHING TENNIS ATHLETIC CLUB "T.A.C." MTÜ kustutatud | 80273505 |