| 4 Seasons Probus Club | Collingwood |
| Barrie Huronia PROBUS Club, Barrie - No Physical Address | Barrie |
| Barrie Kempenfelt Probus Club, Barrie - Mailing Address | Barrie |
| CN Pensioners Association, Northern Ontario / Barrie | Barrie |
| National Association of Federal Retirees, Barrie, National Association of Federal Retirees - Huronia Branch 35 | Barrie |
| Police Retirees of Ontario | Grimsby |
| Probus Club of Collingwood | Collingwood |
| Probus Club of Exeter & Area, Exeter - Mailing Address | Exeter |
| Probus Club of Goderich & Area #137, Goderich | Goderich |
| Probus Club of Hume Street and District, Collingwood - Paterson St | Collingwood |
| Probus Club of Midland-Huronia, North Simcoe Sports and Recreation Centre | Midland |
| Probus Club of Severn Sound | Penetanguishene |
| Probus Club of Simcoe North | Penetanguishene |
| Probus Club of Stratford, Stratford | Stratford |
| PROBUS Club of the Gateway (The) | Collingwood |
| Probus Club of Wasaga Beach | Wasaga Beach |
| World Probus - Orillia Branch, Orillia, Probus Club of Orillia 159 (The) | Orillia |