| Bruce Trail Conservancy, Halton Hills Chapter, Toronto Bruce Trail Club | Halton Hills |
| Bruce Trail Conservancy, Iroquoia Bruce Trail Club | Burlington |
| Conservation Halton, Green Space: Newcomer Youth Climate Forum | Burlington |
| Conservation Halton, Burlington - Mount Nemo Conservation Area, Conservation Land & Recreational Trails | Burlington |
| Conservation Halton, Campbellville - Mountsberg Conservation Area, Conservation Land & Recreational Trails | Milton |
| Conservation Halton, Milton - Area 8 Conservation Area, Conservation Land & Recreational Trails | Milton |
| Conservation Halton, Milton - Crawford Lake Conservation Area, Conservation Land & Recreational Trails | Milton |
| Conservation Halton, Milton - Hilton Falls Conservation Area, Conservation Land & Recreational Trails | Milton |
| Conservation Halton, Milton - Kelso Conservation Area / Glen Eden, Conservation Land & Recreational Trails | Milton |
| Conservation Halton, Milton - Rattlesnake Point Conservation Area, Conservation Land & Recreational Trails | Milton |
| Conservation Halton, Milton - Robert Edmondson Conservation Area, Conservation Land & Recreational Trails | Milton |
| Credit Valley Conservation Authority, Limehouse Conservation Area, Conservation Land & Recreational Trails | Halton Hills |
| Credit Valley Conservation Authority, Silver Creek Conservation Area, Conservation Land & Recreational Trails | Halton Hills |
| Field and Stream Rescue Team | Burlington |
| Halton North Peel Naturalist Club | Halton Hills |
| Oakville Horticultural Society | Oakville |
| Oakville. Parks and Open Space, Lions Valley Park | Oakville |
| Prime Earth, Youth Empowerment & Environmental Conservation Organization | Burlington |
| Protecting Escarpment Rural Land | Burlington |
| South Peel Naturalists' Club | Mississauga |
| Trout Unlimited Canada, Environmental Improvement Group | Halton Region |
