| Conservation Halton | Burlington |
| Conservation Halton, Campbellville - Mountsberg Conservation Area, Conservation Land & Recreational Trails | Milton |
| Conservation Halton, Milton - Crawford Lake Conservation Area, Conservation Land & Recreational Trails | Milton |
| Credit Valley Conservation Authority, Limehouse Conservation Area, Conservation Land & Recreational Trails | Halton Hills |
| Greenpeace Canada, Community Programs | Toronto |
| Halton Environmental Network | Oakville |
| Oakvillegreen Conservation Association | Oakville |
| Sustainable Milton | Milton |
