Carden Field Naturalists
Chippewas of Georgina Island First Nation
Concerned Citizens of King Township
Couchiching Conservancy
Crescent Harbour Association
DeGrassi Cove Association
Friends of Strawberry Island
Innisfil District Association
Innisfree Ltd. DeGrassi Point
Lake Simcoe Association
Nature Barrie
North Gwillimbury Forest Alliance
North Mara Beach Residents Association
Ontario Water Centre
Simcoe County Greenbelt Coalition
South Lake Simcoe Naturalists
SOS Beaverton
Snake Island Cottagers Association
Windfall Ecology Centre
York Simcoe Nature Club