| BurlingtonGreen Environmental Association | Burlington |
| Conservation Halton, Financial Assistance Programs | Burlington |
| Conservation Halton, Public Education/Outreach Programs | Burlington |
| Conservation Halton, Milton - Crawford Lake Conservation Area, Conservation Land & Recreational Trails | Milton |
| Field and Stream Rescue Team | Burlington |
| Freshwater Conservation Canada - Greg Clark Chapter, Environmental Improvement Group | Halton Region |
| Friends of the Earth Canada | Ottawa |
| Greenpeace Canada, Community Programs | Toronto |
| Halton Environmental Network | Oakville |
| Halton North Peel Naturalist Club | Georgetown |
| Halton. Public Works, Water and Wastewater Services | Oakville |
| Oakville Community Centre for Peace, Ecology and Human Rights | Oakville |
| Oakville. Parks and Open Space, Parks & Gardens | Oakville |
| Oakvillegreen Conservation Association | Oakville |
| Ontario. Ministry of Natural Resources [Central East], Peterborough - Mailing Address, Natural Resources Information and Support Centre | Peterborough |
| Plenty Canada | Lanark Highlands |
| Prime Earth, Youth Empowerment & Environmental Conservation Organization | Burlington |
| Protecting Escarpment Rural Land | Burlington |
| South Peel Naturalists' Club | Mississauga |
| Sustainable Milton | Milton |
