Association to Preserve Cape Cod

Berkshire Environmental Action Team

Charles River Conservancy

Charles River Watershed Association

Environment Massachusetts
(new home of MASSPIRG's environmental work)

Environmental League of Massachusetts

Friends of the Blue Hills

Friends of the Middlesex Fells

Hilltown Anti-Herbicide Coalition

Kestrel Trust

Lincoln Land Conservation Trust

Massachusetts Association of Conservation Commissions

Massachusetts Audubon Society

Massachusetts Chapter of the Sierra Club

Massachusetts Land Trust Coalition

Massachusetts League of Environmental Voters

Merrimack River Watershed Council

New England Wild Flower Society

Sheffield Land Trust

The Nature Conservancy

The Trustees of Reservations

Weston Conservation Commission

Weston Planning Board