| Organization / Program Name(s) | Located In |
|---|---|
| Architectural Conservancy of Ontario, Cobourg - Mailing Address, Cobourg and East Northumberland Branch | Cobourg |
| Architectural Conservancy of Ontario, Port Hope - Mailing Address, Port Hope Branch | Port Hope (Municipality of) |
| Architectural Conservancy of Ontario, Stratford-Perth County Branch | Stratford |