| Barrie and District Girls Softball Association | Barrie |
| Barrie and District Ladies Slo Pitch | Barrie |
| Barrie Slo-Pitch Association | Barrie |
| Benmiller Baseball League | Goderich |
| Blyth Minor Fastball, Blyth Community Centre | North Huron |
| Christian Sports | Oro-Medonte |
| Clinton Minor Ball, No Physical Address | Central Huron |
| Georgian Bay Minor Softball League | Midland |
| Milverton and District Minor Softball, Mailing Address | Perth East |
| Mitchell Minor Sports | West Perth |
| NSA Slo Pitch League (Barrie), Mailing Address, Indoor Winter Dome Slo-Pitch | Barrie |
| NSA Slo Pitch League (Barrie), Mailing Address, Outdoor Adult Summer Slo-Pitch | Midhurst |
| Simcoe Ladies Fast Pitch League, Simcoe County - No Physical Address | Simcoe |
| Simcoe Rural Fastball League | Springwater |
| South Huron Ladies Slo-Pitch, Exeter | South Huron |
| Stratford Memorials Minor Boys Softball | Stratford |
| Stratford Minor Girls Softball Association | Stratford |