| 310 Running | Athletics Niagara |
| Athletiques International | Blue Devils Athletics Club |
| Bolton Pole Vault | BOOST Athletics Club |
| Border City AC | Brampton Racers Track & Field Club |
| Brampton Track Club INC. | Brantford T.F.C. |
| Bullets Track Club | Burlington Track & Field Club |
| C.A.N.I. Athletics | Central Ontario Rogues |
| Central Toronto Athletic Club | Centro Scuola T.F.C. |
| DISASSOCIATED | Durham Dragons Athletics |
| Durham Legion Athletics | Elite Jumps |
| Etobicoke Huskies-Striders Track and Field Club | First Attempt Jumps Academy |
| Game Speed International | Georgian Bay Coyotes TC |
| Georgian Jumps | Guelph Track & Field Club |
| Hamilton Elite Athletic Team | Hamilton Olympic Club |
| Huron-Perth Wind | Invictus Athletics Club |
| Kingston Track & Field Club | Kitchener Waterloo T.F.A. |
| Laurel Creek T.F.C | London Legion T.F. Alliance |
| London Western T.F.C | Mississauga Olympians T&F A.A. |
| Mississauga T.F.C. | Monte Cristo Track Club |
| National Capital Track & Field Club | Newmarket Huskies Track Club |
| Niagara Olympic Club | North Bay Legion |
| North Halton Stars T.F.C. | Oakville Renegades Track Club |
| Ottawa Lions T.F.C | Phoenix Athletics Assoc. of Ontario |
| Project Athletics Track and Field Program | Sarnia Athletics Southwest TFC |
| Saugeen Track & Field Association | Sault Athletics Club |
| South Simcoe Dufferin T.F.C. | Speed Academy Athletics Club |
| Speed River Track & Field Club | St Thomas Legion Track & Field Club |
| Stratford Sabrecats Track Club | Sundown Athletics Club |
| Terminal Velocity Track Club | The Gazelles |
| Thorold Elite Track Club | Timmins Porcupine T.F.C. |
| Toronto Olympic Track & Field Club | Toronto West Athletics |
| Track North Athletic Club | Ultimate Body Sprint Club |
| United Tamil Sports Club | University of Toronto TC |
| University of Windsor Athletics Club | UNON - Unattached Ontario |
| Vernon Amateur Athletics Association | Windsor Legion T.F.C |
| Woodstock Legion Athletic Club | York Region Runners Club |
| York University Track & Field Club |