| Acton Soccer Club | Acton |
| BaseballMilton | Milton |
| Burlington Amateur Softball Association | Burlington |
| Burlington Centaurs Rugby Football Club | Burlington |
| Burlington Minor Football Association | Burlington |
| Burlington Minor Lacrosse Association | Burlington |
| Burlington Organized Minor Baseball Association | Burlington |
| Burlington Soccer Club | Burlington |
| Crusaders Rugby Club | Oakville |
| Force Soccer Academy | Burlington |
| Georgetown Slopitch League | Georgetown |
| Georgetown Soccer Club | Georgetown |
| Golden Horseshoe Touch Football Association | Burlington |
| Halton Field Hockey Club | Oakville |
| Halton Hawks FC Academy | Milton |
| Halton Hawks Girls Fastpitch Association | Halton Hills |
| Halton Hills Minor Baseball Association | Halton Hills |
| Halton Hills Minor Lacrosse Association | Georgetown |
| Milton Girls Softball | Milton |
| Milton Minor Lacrosse Association | Milton |
| Milton United Soccer Club | Milton |
| Milton Youth Soccer Club | Milton |
| MusFit, Sports Programs for Youth and Adults | Oakville |
| North Halton Rugby Football Club | Georgetown |
| Oakville Cricket Club | Oakville |
| Oakville Girls Softball Association | Oakville |
| Oakville Little League Baseball | Oakville |
| Oakville Minor Baseball Association | Oakville |
| Oakville Minor Lacrosse Association | Oakville |
| Oakville Soccer Club | Oakville |
| Oakville Soccer Club, Breaking Barriers Program | Oakville |
| Slo Pitch Softball Leagues, Burlington | Burlington |
| Slo Pitch Softball Leagues, Oakville | Oakville |
