Environment nonprofits in Massachusetts

1,043 environmental nonprofits in Massachusetts file a Form 990. Together they report $1.1 billion in revenue and hold $3.9 billion in assets.

Browse all 556 environmental nonprofits in Massachusetts →

The largest are Iso New England Inc, Trustees Of Reservations, and Massachusetts Audubon Society Inc.

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Environment in Massachusetts

Largest by revenue first.

Iso New England Inc 501(c)(3) · Holyoke, MA	$264.6M
Trustees Of Reservations 501(c)(3) · Boston, MA	$57.9M
Massachusetts Audubon Society Inc 501(c)(3) · Lincoln, MA	$56.2M
Clean Air Task Force Inc 501(c)(3) · Boston, MA	$50.1M
Appalachian Mountain Club 501(c)(3) · Charlestown, MA	$43.6M
Conservation Law Foundation Inc 501(c)(3) · Boston, MA	$41.6M
Ceres Inc 501(c)(3) · Boston, MA	$40.9M
New England Interstate Water Pollution Control Commission 501(c)(3) · Lowell, MA	$26.1M
Project Innerspace Inc 501(c)(3) · Boston, MA	$23.1M
Massachusetts Service Alliance Inc 501(c)(3) · Boston, MA	$18.9M
Nantucket Conservation Foundation Inc 501(c)(3) · Nantucket, MA	$17.5M
Sconset Trust Inc 501(c)(3) · Siasconset, MA	$16.3M
Deploy-Us Inc 501(c)(3) · Boston, MA	$16.2M
BBuzzards Bay Coalition Inc 501(c)(3) · New Bedford, MA	$15.7M
Greentown Collaborative Inc 501(c)(3) · Somerville, MA	$15.0M
Cathleen Stone Island Outward Bound School Inc 501(c)(3) · Boston, MA	$14.7M
Goodpower Education Fund Inc 501(c)(3) · Boston, MA	$14.3M
Center For Ecotechnology Inc 501(c)(3) · Northampton, MA	$12.0M
Center For Coastal Studies Inc 501(c)(3) · Provincetown, MA	$10.2M
Boston Harbor Now Inc 501(c)(3) · Boston, MA	$10.1M
New England Forestry Foundation Inc 501(c)(3) · Littleton, MA	$9.1M
Essex County Greenbelt Association 501(c)(3) · Essex, MA	$9.0M
Orleans Conservation Trust 501(c)(3) · Orleans, MA	$8.9M
FFrank And Sheila Magullion Foundation Inc 501(c)(3) · Boston, MA	$8.8M
Worcester County Horticultural Society 501(c)(3) · Boylston, MA	$8.7M
New Ecology Inc 501(c)(3) · Boston, MA	$8.4M
Manomet Inc 501(c)(3) · Manomet, MA	$8.3M
Infact 501(c)(3) · Boston, MA	$8.0M
Efficiency Forward Inc 501(c)(3) · Medford, MA	$7.8M
Berkshire Natural Resources Council Inc 501(c)(3) · Lenox, MA	$6.7M
Mystic River Watershed Association Inc 501(c)(3) · Arlington, MA	$6.5M
Native Land Conservancy Inc 501(c)(3) · Mashpee, MA	$6.5M
Harwich Conservation Tr 501(c)(3) · South Harwich, MA	$6.1M
Northeast Energy Efficiency Partnerships Inc 501(c)(3) · Woburn, MA	$5.9M
Sudbury Valley Trustees Inc 501(c)(3) · Sudbury, MA	$5.8M
Friends Of The Public Garden Inc 501(c)(3) · Boston, MA	$5.7M
Cascade Climate Inc 501(c)(3) · Somerville, MA	$5.7M
Environmental League Of Massachusetts Inc 501(c)(3) · Boston, MA	$5.6M
Furniture Trust Organization Inc 501(c)(3) · Arlington, MA	$5.3M
Populace Inc 501(c)(3) · Cambridge, MA	$5.1M
Northeast States For Coordinated Air Use Management Inc 501(c)(3) · Boston, MA	$5.0M
Native Plant Trust Inc 501(c)(3) · Wayland, MA	$4.8M
Homeworld Collective Inc 501(c)(3) · Somerville, MA	$4.7M
Sheriff'S Meadow Foundation 501(c)(3) · West Tisbury, MA	$4.5M
Friends Of The Arava Institute Ltd 501(c)(3) · Newton Center, MA	$4.4M
Greenroots Inc 501(c)(3) · Chelsea, MA	$4.3M
Barnstable Land Trust Inc 501(c)(3) · W Barnstable, MA	$4.0M
Consortium For Energy Efficiency Inc 501(c)(3) · Middleton, MA	$3.7M
Connecticut River Watershed Council Inc 501(c)(3) · Greenfield, MA	$3.7M
Mount Grace Land Conservation Trust Inc 501(c)(3) · Athol, MA	$3.6M
Goodpower Inc 501(c)(4) · Boston, MA	$3.6M
Regional Environmental Council Inc 501(c)(3) · Worcester, MA	$3.5M
Nature'S Classroom Inc 501(c)(3) · Charlton, MA	$3.2M
Truro Conservation Trust 501(c)(3) · North Truro, MA	$3.1M
300 Committee Land Trust Inc 501(c)(3) · East Falmouth, MA	$3.1M
Bourne Conservation Trust 501(c)(3) · Cataumet, MA	$3.1M
Massachusetts Horticultural Society 501(c)(3) · Wellesley, MA	$3.1M
Duxbury Beach Reservation Inc 501(c)(3) · Duxbury, MA	$3.0M
Association To Preserve Cape Cod Inc 501(c)(3) · Dennis, MA	$2.9M
Coonamessett Farm Foundation Inc 501(c)(3) · East Falmouth, MA	$2.9M
NNorth American Marine Alliance Inc 501(c)(3) · Gloucester, MA	$2.7M
Mothers Out Front Inc 501(c)(3) · Boston, MA	$2.7M
Westport Land Conservation Trust Inc 501(c)(3) · Westport, MA	$2.6M
Kestrel Land Trust Inc 501(c)(3) · Amherst, MA	$2.6M
Greengoat 501(c)(3) · Somerville, MA	$2.5M
Cape Cod Commericial Fishermens Alliance Inc 501(c)(3) · Chatham, MA	$2.5M
All In Energy Inc 501(c)(3) · Roslindale, MA	$2.5M
National Environmental Policy And Law Center Inc 501(c)(3) · Boston, MA	$2.4M
Charles River Watershed Association Inc 501(c)(3) · Boston, MA	$2.3M
Brewster Conservation Trust 501(c)(3) · Brewster, MA	$2.3M
Berkshire Garden Center Inc 501(c)(3) · Stockbridge, MA	$2.2M
Northeast Sustainable Energy Association Inc 501(c)(3) · Greenfield, MA	$2.1M
Ipswich River Watershed Association Inc 501(c)(3) · Ipswich, MA	$2.1M
Neponset River Watershed Assoc 501(c)(3) · Canton, MA	$2.0M
Wildlands Trust Inc 501(c)(3) · Plymouth, MA	$1.9M
Save The Harbor Save The Bay Inc Boston Fish Pier 501(c)(3) · Boston, MA	$1.9M
Nantucket Land And Water Council Inc 501(c)(3) · Nantucket, MA	$1.9M
Beyond Benign Inc 501(c)(3) · Wilmington, MA	$1.8M
Speak For The Trees Inc 501(c)(3) · Dorchester, MA	$1.7M
Lands Sake Incorporated 501(c)(3) · Weston, MA	$1.7M
PPreservation Trust Inc 501(c)(3) · Southborough, MA	$1.7M
Shalin Liu Wildlife Sanctuary Foundation 501(c)(3) · Boston, MA	$1.7M
New England Water Environment Association Inc 501(c)(3) · Woburn, MA	$1.7M
Act Institute Inc 501(c)(3) · Boston, MA	$1.7M
Polly Hill Arboretum Inc 501(c)(3) · West Tisbury, MA	$1.7M
Massachusetts Woodlands Institute Inc Dba Ma Woodlands Institute 501(c)(3) · Shelburne Fls, MA	$1.6M
Greentown Org Inc 501(c)(3) · Somerville, MA	$1.6M
Sustainable Harvest International 501(c)(3) · Boston, MA	$1.6M
Catf Action Inc 501(c)(4) · Boston, MA	$1.6M
Lowell Parks And Conservation Trust Inc 501(c)(3) · Lowell, MA	$1.4M
Tourism Cares Inc 501(c)(3) · Canton, MA	$1.4M
Change Is Simple Incorporated 501(c)(3) · Beverly, MA	$1.4M
Just Zero 501(c)(3) · Sturbridge, MA	$1.4M
Harvard Conservation Trust 501(c)(3) · Harvard, MA	$1.4M
FForges Foundation Inc 501(c)(3) · Plymouth, MA	$1.4M
Whale And Dolphin Conservation Inc 501(c)(3) · Plymouth, MA	$1.3M
Round The Bend Farm Inc 501(c)(3) · S Dartmouth, MA	$1.3M
Nashua River Watershed Association Inc 501(c)(3) · Groton, MA	$1.3M
AAshoka Trust For Research In Ecology And The Environment Inc 501(c)(3) · Belmont, MA	$1.3M
North And South Rivers Watershed Association Inc 501(c)(3) · Norwell, MA	$1.3M

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Cities in Massachusetts