| Abilities In Motion | New Tecumseth |
| District 29 Senior Games, Burnside Agriplex | Stratford |
| FishAbility Sports Club | Hamilton Township |
| Midland Bay Sailing Club | Midland |
| Northumberland Predators Sledge Hockey Team | Hamilton Township |
| Ontario Senior Games Association, District 12 55+ Seniors Games - Northumberland County, District 12 55+ Senior Games | Cobourg |
| Ontario Senior Games Association | Barrie |
| Ontario Track3 Adaptive Sports Association | Toronto |
| Special Olympics Ontario - Central Ontario, Barrie - No Physical Address, Special Olympics Ontario - Barrie Chapter | Barrie |
| Special Olympics Ontario - Central Ontario, Central Bruce - Mailing Address, Special Olympics Ontario - Central Bruce Chapter | Saugeen Shores |
| Special Olympics Ontario - Central Ontario, Collingwood and District - Mailing Address, Special Olympics Ontario - Collingwood and District Chapter | Collingwood |
| Special Olympics Ontario - Central Ontario, Dufferin - Mailing Address, Special Olympics Ontario - Dufferin Chapter | Dufferin County |
| Special Olympics Ontario - Central Ontario, Goderich - Mailing Address, Special Olympics Ontario - Goderich Chapter | Goderich |
| Special Olympics Ontario - Central Ontario, Huntsville - No Physical Address, Special Olympics Ontario - Huntsville Chapter | Huntsville |
| Special Olympics Ontario - Central Ontario, Huronia - Mailing Address, Special Olympics Ontario - Huronia Chapter | Midland |
| Special Olympics Ontario - Central Ontario, Special Olympics Ontario - Kawartha Lakes Chapter | Kawartha Lakes |
| Special Olympics Ontario - Central Ontario, Kincardine - Mailing Address, Special Olympics Ontario - Kincardine Chapter | Kincardine |
| Special Olympics Ontario - Central Ontario | Ontario |
| Special Olympics Ontario - Central Ontario, Meaford and Thornbury - Mailing Address, Special Olympics Ontario - Meaford and Thornbury Chapter | Meaford |
| Special Olympics Ontario - Central Ontario, Muskoka Region - No Physical Address, Special Olympics Ontario - Muskoka Region Chapter | |
| Special Olympics Ontario - Central Ontario, Northumberland - No Physical Address, Special Olympics Ontario - Northumberland Chapter | Northumberland County |
| Special Olympics Ontario - Central Ontario, Orillia - No Physical Address, Special Olympics Ontario - Orillia Chapter | Orillia |
| Special Olympics Ontario - Central Ontario, Owen Sound - Mailing Address, Special Olympics Ontario - Owen Sound Chapter | Owen Sound |
| Special Olympics Ontario - Central Ontario, Peterborough - No Physical Address, Special Olympics Ontario - Peterborough Chapter | Peterborough |
| Special Olympics Ontario - Central Ontario, South Saugeen - Mailing Address, Special Olympics Ontario - South Saugeen Chapter | Bruce County |
| Special Olympics Ontario - Central Ontario, South Simcoe - Mailing Address, Special Olympics Ontario - South Simcoe Chapter | New Tecumseth |
| Special Olympics Ontario - Central Ontario, Stratford and Area - Mailing Address, Special Olympics Ontario - Stratford & Area | Stratford |