| Association Balle lente de Barrie | Barrie |
| Balle lente féminine de Barrie et District | Barrie |
| Barrie and District Girls Softball Association, Association de softball féminin de Barrie et du district | Barrie |
| Georgian Bay Ladies Slo Pitch | Penetanguishene |
| Georgian Bay Minor Softball League | Midland |
| Simcoe Rural Fastball League | Springwater |
| South Simcoe Ladies Fast Pitch League, Simcoe County - No Physical Address, South Simcoe Ladies Fast Pitch League at Simcoe County - No Physical Address | Simcoe |
| SPN Outdoor Slo-Pitch, Balle-lente de plein air SPN | Midhurst |
| SPN Outdoor Slo-Pitch, Balle-lente d'hiver en intérieur du dôme SPN | Barrie |
| Sports Chrétiens | Oro-Medonte |
| Sunday Night Co-ed Slo Pitch League, Barrie - Mailing Address, Ligue de balle lente mixte du dimanche soir | Springwater |