- Credit Valley Conservation Authority
- Lake Simcoe and Region Conservation Authority
- Toronto and Region Conservation Authority
- Eastern Ontario Model Forest
- Tembec
- Ontario Forest Industries Association
- Weyerhaeuser
- Borealis Consulting
- Tyhee Forestry Consultants
- KBM Forestry
- Earthroots
- Ecojustice (formerly Sierra Legal)
- Ontario Nature
- ForestEthics
- Greenpeace
- LEAF
- International Union for the Conservation of Nature
- Nature Conservancy of Canada
- Ontario Forestry Association
- Wildlife Conservation Society
- World Wildlife Fund (Canada)
- Forest Stewardship Council
- Rainforest Alliance
- Aga Khan Foundation
- Conservation International
- Great Lakes Forestry Centre
- Canadian Food Inspection Agency
- Canadian Forestry Service
- Indian and Northern Affairs
- Ontario Ministry of Natural Resources
- Ontario Ministry of Northern Development and Mines
- BC Ministry of Forests
- City of Ottawa
- City of Toronto
- New York City
- United Nations Programs
- Elk Lake Ecology Centre
- Environics International Limited
- Haliburton Forest and Wildlife Reserve
- Urban Forest Innovations Ltd