| Brampton Racers TC | Brampton Racers Track & Field Club |
| Brantford TFC | Burlington TFC |
| CK Running Club | Durham Dragons |
| Durham Dragons Athletics | Etobicoke Huskies-Striders Track and Field Club |
| Etobicoke Track | Georgian Bay Coyotes |
| Go360 Racing | Hamilton Olympic Club |
| Kitchener Waterloo TFA | Milton Spikes |
| Milton Spikes Track and Field Club | Mississauga Olympians |
| Mississauga T.F.C. | Newmarket Huskies TC |
| PACK Running Club | South Simcoe Dufferin TFC |
| The Gazelles | The Gazelles Track and Field Club |
| Thorold Elite Track Club | unassigned |
| Unattached Ontario | York Region Runners Club |
| York University Track & Field Club |