American Legion Mitchell Post #281
Friends of Trees
Garden Club of Shelter Island
Joseph J. Theinert Memorial Fund/Strongpoint Theinert Ranch
League of Women Voters of Shelter Island
Mashomack Preserve/The Nature Conservancy
PTSA of Shelter Island
Senior Citizens Foundation of Shelter Island
Shelter Island Ambulance Foundation
Shelter Island Chamber of Commerce
Shelter Island Educational Foundation
Shelter Island Early Childhood Learning Center
Shelter Island Fall 5K Run/Walk
Shelter Island Friends of Music
Shelter Island 10K Run Community Fund
Shelter Island Police Benevolent Association
Shelter Island Historical Society
Sylvester Manor Educational Farm
Churches: