| Abbey Oaks Slo Pitch, Men's Slo Pitch League | Oakville |
| Acton Soccer Club | Acton |
| Aldershot Community Recreation Association | Burlington |
| Brookville Masters Slo Pitch League | Milton |
| Burlington Mens Hockey League | Burlington |
| Burlington Pickleball Association, Athletic Association | Burlington |
| Burlington Vintage Baseball League | Burlington |
| Burlington Womens Recreational Soccer League | Burlington |
| Georgetown Ladies Powderpuff League | Georgetown |
| Georgetown Slopitch League | Georgetown |
| Glen Abbey Ladies Slo Pitch League | Oakville |
| Glen Abbey Slo-Pitch League | Oakville |
| Halton and Oakville Men's Hockey League | Oakville |
| Halton Hills Pickleball Association, Athletic Association | Halton Hills |
| Milton Ladies Slo Pitch, Recreational Softball League | Milton |
| Milton Ladies Softball League | Milton |
| Milton Pickleball Association | Milton |
| Milton Youth Soccer Club | Milton |
| North Central Community Association | Burlington |
| Oakville Pickleball Association, Athletic Association | Oakville |
| Oakville Senior Ladies Basketball League | Oakville |
| Oakville Soccer Club | Oakville |
