| Organization / Program Name(s) | Located In |
|---|---|
| Bronte Historical Society | Oakville |
| Burlington Historical Society | Burlington |
| Esquesing Historical Society | Georgetown |
| Halton. Regional Municipality of Halton, Heritage Services | Milton |
| Heritage Acton, Acton Town Hall Centre | Acton |
| Milton Historical Society | Milton |
| Nasagiweya Historical Society | Milton |
| Oakville Historical Society | Oakville |
| Ontario Electric Railway Historical Association, Streetcar Museum | Milton |
| Trafalgar Township Historical Society | Oakville |
