| Organization / Program Name(s) | Located In |
|---|---|
| Conservation Halton, Financial Assistance Programs | Burlington |
| Friends of the Earth Canada, Ottawa, Friends of the Earth | Ottawa |
| Halton. Public Works, Water and Wastewater Services | Oakville |
| Ontario. Ministry of Natural Resources [Central East], Peterborough - Mailing Address, Natural Resources Information and Support Centre | Peterborough |
