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Massachusetts · NTEE C

Environment Nonprofits in Massachusetts

Givalgo Discover indexes 50 active environment nonprofits headquartered in Massachusetts. The list below is sorted by reported revenue on the most recent Form 990 indexed for each organisation.

Top 50 by reported revenue

From the most recent Form 990 indexed for each organisation. Click an org for full diligence detail.

#OrganisationRevenue
1ISO NEW ENGLAND INC
EIN 04-3372500
$264.6M
2TRUSTEES OF RESERVATIONS
EIN 04-2105780
$57.9M
3MASSACHUSETTS AUDUBON SOCIETY INC
EIN 04-2104702
$56.2M
4CLEAN AIR TASK FORCE INC
EIN 04-3512550
$50.1M
5APPALACHIAN MOUNTAIN CLUB
EIN 04-6001677
$43.6M
6CERES INC
EIN 22-3053747
$40.9M
7NEW ENGLAND INTERSTATE WATER POLLUTION CONTROL COMMISSION
EIN 04-6004735
$31.7M
8CONSERVATION LAW FOUNDATION INC
EIN 04-6149986
$24.2M
9PROJECT INNERSPACE INC
EIN 87-3285334
$23.1M
10MASSACHUSETTS SERVICE ALLIANCE INC
EIN 04-3088234
$19.3M
11NANTUCKET CONSERVATION FOUNDATION INC
EIN 04-2373794
$17.5M
12CENTER FOR COASTAL STUDIES INC
EIN 04-2609788
$16.3M
13SCONSET TRUST INC
EIN 22-2561811
$16.3M
14DEPLOY-US INC
EIN 47-2818525
$16.2M
15BUZZARDS BAY COALITION INC
EIN 04-2971978
$15.7M
16GREENTOWN COLLABORATIVE INC
EIN 85-3807217
$15.0M
17CATHLEEN STONE ISLAND OUTWARD BOUND SCHOOL INC
EIN 04-3027900
$14.7M
18GOODPOWER EDUCATION FUND INC
EIN 26-3106566
$14.3M
19CENTER FOR ECOTECHNOLOGY INC
EIN 04-2611726
$12.0M
20BOSTON HARBOR NOW INC
EIN 04-3268863
$10.1M
21NEW ENGLAND FORESTRY FOUNDATION INC
EIN 04-2024022
$9.1M
22ESSEX COUNTY GREENBELT ASSOCIATION
EIN 04-2664297
$9.0M
23ORLEANS CONSERVATION TRUST
EIN 23-7418072
$8.9M
24WORCESTER COUNTY HORTICULTURAL SOCIETY
EIN 04-1988945
$8.7M
25NEW ECOLOGY INC
EIN 04-3447828
$8.4M
26MANOMET INC
EIN 22-3051362
$8.3M
27INFACT
EIN 41-1322686
$8.0M
28EFFICIENCY FORWARD INC
EIN 04-3323169
$7.8M
29SHERIFFS MEADOW FOUNDATION
EIN 04-6111529
$7.5M
30NATIVE LAND CONSERVANCY INC
EIN 46-3944868
$6.5M
31BERKSHIRE NATURAL RESOURCES
EIN 04-2430091
$6.3M
32HARWICH CONSERVATION TR
EIN 04-6599166
$6.1M
33NORTHEAST ENERGY EFFICIENCY PARTNERSHIPS INC
EIN 81-3283869
$5.9M
34SUDBURY VALLEY TRUSTEES INC
EIN 04-6049963
$5.8M
35CASCADE CLIMATE INC
EIN 93-2117635
$5.7M
36MYSTIC RIVER WATERSHED ASSOCIATION INC
EIN 23-7221094
$5.7M
37FURNITURE TRUST ORGANIZATION INC
EIN 26-2607677
$5.3M
38POPULACE INC
EIN 46-1629781
$5.1M
39NORTHEAST STATES FOR COORDINATED AIR USE MANAGEMENT INC
EIN 04-2814018
$5.0M
40CHARLES RIVER WATERSHED ASSOCIATION INC
EIN 04-6136989
$4.9M
41NATIVE PLANT TRUST INC
EIN 04-2104768
$4.8M
42FRIENDS OF THE PUBLIC GARDEN INC
EIN 23-7451432
$4.7M
43HOMEWORLD COLLECTIVE INC
EIN 88-2741229
$4.7M
44CONNECTICUT RIVER WATERSHED COUNCIL INC
EIN 04-2148397
$4.6M
45GREENROOTS INC
EIN 81-2718273
$4.3M
46BARNSTABLE LAND TRUST INC
EIN 22-2483963
$4.0M
47FRIENDS OF THE ARAVA INSTITUTE LTD
EIN 11-3485736
$3.8M
48IPSWICH RIVER WATERSHED ASSOCIATION INC
EIN 04-2615125
$3.8M
49COONAMESSETT FARM FOUNDATION INC
EIN 26-2645719
$3.8M
50CONSORTIUM FOR ENERGY EFFICIENCY INC
EIN 68-0257528
$3.7M

Frequently asked questions about environment nonprofits in Massachusetts

Answers compiled from the IRS Form 990, BMF, Pub 78, and Auto-Revocation List.

How many environment nonprofits operate in Massachusetts?
Every IRS-registered environment nonprofit in Massachusetts appears in the Givalgo Discover index. The top 50 by reported revenue are listed on this page; the full set is searchable on discover.givalgo.ai.
What's the largest environment nonprofit in Massachusetts?
The single largest environment nonprofit in Massachusetts by reported total revenue is shown at the top of the list on this page, sourced from each organisation's most recent IRS Form 990 filing.
How do I vet a environment nonprofit in Massachusetts before donating?
Use Givalgo Discover's free profile for the organisation: it cross-references the IRS Auto-Revocation List, IRS Publication 78, and the IRS Business Master File, and exposes the latest Form 990 financials and governance signals on a single page.
Are donations to Massachusetts environment nonprofits tax-deductible?
Federal deductibility is determined by IRS Publication 78 status, not state location. Donations to a Pub 78-listed environment nonprofit in Massachusetts are tax-deductible at the federal level; Massachusetts state tax treatment may differ.
Where do environment nonprofits in Massachusetts file their Form 990?
All US tax-exempt organisations file Form 990 with the IRS at the federal level — there is no state-specific filing for the federal exemption itself. Massachusetts state charity registration is a separate state-level requirement.