| BaseballMilton | Milton |
| Burlington Organized Minor Baseball Association | Burlington |
| Burlington Vintage Baseball League | Burlington |
| Georgetown Ladies Powderpuff League | Georgetown |
| Halton Hawks Girls Fastpitch Association | Halton Hills |
| Halton Hills Minor Baseball Association | Halton Hills |
| Halton Hills. Recreation & Parks, Sports Fields | Halton Hills |
| Joy of Learning, Multiple Locations, Challenger Sports | Halton Region |
| Milton Red Sox Senior Baseball Club | Milton |
| Milton. Community Services, Outdoor Sports Parks | Milton |
| Oakville Little League Baseball | Oakville |
| Oakville Minor Baseball Association | Oakville |
| Ontario Royals Baseball Club | Oakville |
| Palermo Hammer Fastball Club | Burlington |
