| Acton Soccer Club | Acton |
| Asperger's Society of Ontario | Toronto Downtown North |
| Association of Ontario Midwives | Toronto Downtown Central |
| Autism Ontario, Halton Chapter - Mailing Address | Burlington |
| Autism Ontario | Toronto Downtown West |
| BaseballMilton | Milton |
| Burlington Amateur Softball Association | Burlington |
| Burlington Basketball | Burlington |
| Burlington Centaurs Rugby Football Club | Burlington |
| Burlington Girls Hockey Club | Burlington |
| Burlington Lions-Optimist Minor Hockey Association | Burlington |
| Burlington Minor Ball Hockey League | Burlington |
| Burlington Minor Football Association | Burlington |
| Burlington Minor Lacrosse Association | Burlington |
| Burlington Organized Minor Baseball Association | Burlington |
| Burlington Pickleball Association, Athletic Association | Burlington |
| Burlington Soccer Club | Burlington |
| Canadian Hearing Services - Toronto and York Region, Canadian Hearing Services, Mississauga Regional Office | Mississauga |
| Centre for Diverse Learners | Burlington |
| College of Audiologists and Speech Language Pathologists of Ontario | Toronto Downtown North |
| College of Early Childhood Educators | Toronto |
| College of Midwives of Ontario | Toronto Downtown North |
| College of Physicians and Surgeons of Ontario | Toronto Downtown Central |
| Force Soccer Academy | Burlington |
| Georgetown Soccer Club | Georgetown |
| Golden Horseshoe Disabled Sports Association, Vipers Wheelchair Basketball | Burlington |
| Halton Down Syndrome Association | Burlington |
| Halton Hawks Girls Fastpitch Association | Halton Hills |
| Halton Hills Minor Ball Hockey League | Halton Hills |
| Halton Hills Minor Baseball Association | Halton Hills |
| Halton Hills Minor Hockey Association | Georgetown |
| Halton Hills Minor Lacrosse Association | Georgetown |
| Halton Information Providers | Oakville |
| Milton Girls Softball | Milton |
| Milton Minor Ball Hockey League | Milton |
| Milton Minor Hockey Association | Milton |
| Milton Minor Lacrosse Association | Milton |
| Milton Youth Soccer Club | Milton |
| North Central Community Association | Burlington |
| North Halton Girls Hockey Association | Georgetown |
| Oakville Art Society | Oakville |
| Oakville Girls Softball Association | Oakville |
| Oakville Hornets Girls Hockey Association | Oakville |
| Oakville Little League Baseball | Oakville |
| Oakville Minor Baseball Association | Oakville |
| Oakville Minor Lacrosse Association | Oakville |
| Oakville Rangers Hockey Club | Oakville |
| Oakville Soccer Club | Oakville |
| Oakville Titans Football | Oakville |
| Ontario Federation for Cerebral Palsy | Etobicoke North |
| Ontario Royals Baseball Club | Oakville |
| Ringette Association of Burlington | Burlington |
| Silent Voice Canada | Toronto Downtown North |
| War Amps (The), National Headquarters | Ottawa |
