| Christian Heritage Party. Simcoe North Riding | Orillia |
| Christian Heritage Party. Simcoe-Grey Federal Riding | New Tecumseth |
| Conservative Party of Canada, Perth - Wellington Conservative Association | Stratford |
| Conservative Party of Canada, Barrie-Innisfil Federal Electoral District Association | Barrie |
| Conservative Party of Canada, Barrie-Springwater-Oro-Medonte Federal Electoral District Association | Barrie |
| Conservative Party of Canada. Simcoe-Grey Federal Riding Association, No physical location | Collingwood |
| Green Party of Canada, Barrie Innisfil - Mailing Address, Barrie-Innisfil Federal Electoral District Association | Barrie |
| Green Party of Canada, Barrie-Springwater-Oro-Medonte Federal Electoral District Association | Barrie |
| Green Party of Ontario, Barrie-Innisfil Provincial Electoral District Association | Barrie |
| Green Party of Ontario, Barrie-Springwater-Oro-Medonte Provincial Electoral District Association | Barrie |
| Green Party. Simcoe-Grey Federal and Provincial Riding | Simcoe |
| Liberal Party of Canada, Barrie-Innisfil Federal Electoral District Association | Barrie |
| Liberal Party of Canada, Barrie-Springwater-Oro-Medonte Federal Electoral District Association | Barrie |
| Liberal Party of Canada (Ontario), Simcoe-Grey Federal Liberal Riding Association | Collingwood |
| New Democratic Party of Canada, Barrie-Innisfil Federal Electoral District Association | Barrie |
| New Democratic Party of Canada, Barrie-Springwater-Oro-Medonte Federal Electoral District Association | Barrie |
| New Democratic Party of Ontario, No Physical Address, Barrie-Innisfil Provincial Electoral District Association | Barrie |
| New Democratic Party of Ontario, No Physical Address, Barrie-Springwater-Oro Medonte Provincial Electoral District Association | Barrie |
| Northumberland-Peterborough South Federal Liberal Association | Cobourg |
| Ontario Liberal Party, Barrie-Innisfil Provincial Electoral District Association | Barrie |
| Ontario Liberal Party, No Physical Address, Barrie-Springwater-Oro-Medonte Provincial Electoral District Association | Barrie |
| Peterborough Kawartha Provincial NDP Riding Association, Peterborough - Mailing Address, Peterborough Kawartha NDP Riding Association | Peterborough |
| Peterborough-Kawartha Provincial Liberal Association, Mailing Address | Peterborough |
| Progressive Conservative Party of Ontario, Mailing Address, Barrie-Innisfil Provincial Riding Association | Barrie |
| Progressive Conservative Party of Ontario, Barrie-Springwater-Oro-Medonte Provincial Electoral District Association | Barrie |
| Simcoe North Provincial Liberal Association | Orillia |
| Simcoe-Grey NDP Riding Association | Wasaga Beach |
| Simcoe-Grey Provincial Liberal Association | Collingwood |
| Simcoe-Grey Provincial Progressive Conservative (PC) Association | Wasaga Beach |