| 310 Running | Airblastoff Lion |
| Athletics Niagara | Bisons Track Club |
| Blue Devils Athletics Club | Boardwalk RC |
| BOOST Athletics Club | Brampton Elite Track Club |
| Brampton Racers Track & Field Club | Brantford T.F.C. |
| Brantford TFC | Brockville Legion TC |
| Brockville Legion Track Club | Burlington Track & Field Club |
| Central Toronto Athletic Club | Durham Dragons |
| Durham Dragons Athletics | Durham Legion Athletics |
| Eclipse Track & Field Inc | Etobicoke Huskies-Striders Track and Field Club |
| Extreme Velocity Track Club | Flying Angels Academy |
| Glen Manor Track Club | Golden Eagles Track Club |
| Hamilton Olympic Club | Invictus Athletics Club |
| Kawartha Lakes Lightning | Laurel Creek T.F.C |
| London Legion T.F. Alliance | London Western T.F.C |
| Mississauga T.F.C. | Monte Cristo Track Club |
| Motown Athletics Club | Niagara Olympic Club |
| Oakville Renegades Track Club | Oakville Track & Field Club Athletiques International |
| Phoenix Athletics Assoc. of Ontario | Project Athletics Track and Field Program |
| Quest Sports Track and Field Club | Royal City Athletics Club |
| Runners Edge Track Club | Saugeen Track & Field Association |
| South Simcoe Dufferin T.F.C. | South Simcoe Dufferin TFC |
| Speed Academy Athletics Club | St Thomas Legion Track & Field Club |
| Stratford Sabrecats Track Club | The Speed Academy |
| Thorold Elite Track Club | Toronto Olympic Track & Field Club |
| Toronto Race Walkers | Toronto Tornadoes |
| Toronto West Athletics | United States |
| United Tamil Sports Club | University of Toronto TC |
| UNON - Unattached Ontario | Variety Village Athletic Club |
| Windsor Legion T.F.C | York Region Runners Club |
| York University Track & Field Club |