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Wyoming · NTEE C

Environment Nonprofits in Wyoming

Givalgo Discover indexes 50 active environment nonprofits headquartered in Wyoming. 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
1HOLDFAST TR
EIN 88-6574046
$63.3M
2NATIONAL OUTDOOR LEADERSHIP SCHOOL
EIN 83-0204184
$43.0M
3TETON SCIENCE SCHOOLS
EIN 83-0219163
$19.6M
4JACKSON HOLE LAND TRUST
EIN 74-2138785
$9.8M
5WIND RIVER TRIBAL BUFFALO INITIATIVE
EIN 88-1968510
$6.9M
6CHALTEN TR
EIN 88-6576331
$5.3M
7NATIONAL PARK FRIENDS ALLIANCE
EIN 93-1729933
$3.1M
8WILDER TR
EIN 88-6588261
$3.0M
9TAIL WIND TR
EIN 88-6583712
$2.9M
10ASTORIA PARK CONSERVANCY
EIN 82-5250433
$2.8M
11WYOMING OUTDOOR COUNCIL
EIN 83-0259411
$2.7M
12SNAKE RIVER FUND
EIN 42-1562251
$1.9M
13FRIENDS OF THE BRIDGER-TETON
EIN 83-3146987
$1.6M
14PROTECT OUR WATER JACKSON HOLE INC
EIN 46-5538680
$1.4M
15MULEY FANATIC FOUNDATION OF WYOMING INC
EIN 45-3578215
$1.3M
16SHERIDAN COMMUNITY LAND TRUST
EIN 20-4385635
$1.0M
17THE JACKSON HOLE ONE FLY FOUNDATION
EIN 83-0307408
$926K
18THUNDER BASIN GRASSLANDS PRAIRIE ECO-SYSTEM ASSOCIATION
EIN 83-0332000
$746K
19JACKSON HOLE CONSERVATION ALLIANCE
EIN 83-0245647
$672K
20PILOT HILL INC
EIN 36-4963034
$670K
21PERMACULTURE PLANET US NGO FOUNDATION
EIN 92-3357802
$637K
22POWDER RIVER BASIN RESOURCE COUNCIL
EIN 74-2183158
$463K
23WYOMING PATHWAYS
EIN 46-0961604
$454K
24JACKSON HOLE CENTER FOR GLOBAL AFFAIRS INC
EIN 30-0075389
$406K
25FRIENDS OF THE CHEYENNE BOTANIC GARDEN
EIN 83-0302260
$400K
26WYOMING WETLANDS SOCIETY
EIN 74-2487790
$338K
27RENDEZVOUS LANDS CONSERVANCY
EIN 45-4050415
$334K
28INTERNATIONAL ROCKY MOUNTAIN STAGE STOP SLED DOG RACE
EIN 83-0314194
$328K
29WYOMING PETROLEUM FOUNDATION
EIN 99-3490772
$327K
30NATIONAL ASSOCIATION OF ABANDONED MINE LAND PROGRAMS
EIN 83-0310654
$326K
31RAY LOVATO RECYCLING CENTER
EIN 82-1797971
$313K
32ADVOCATES FOR MULTI-USE OF PUBLIC LANDS
EIN 82-1240428
$285K
33YELLOWSTONE-TETON CLEAN CITIES INC
EIN 82-0506015
$271K
34POWELL VALLEY RECYCLING
EIN 30-0537372
$205K
35CITY OF BUFFALO CHARITABLE FOUNDATION INC
EIN 83-0276382
$197K
36ROOTED IN CHEYENNE
EIN 83-0801250
$171K
37ROCK SPRINGS RENEWAL FUND INC
EIN 20-5196877
$156K
38CASPER MOUNTAIN PRESERVATION ALLIANCE
EIN 99-2194099
$152K
39NORTH PLATTE RIVER FOUNDATION INC
EIN 47-2017399
$124K
40ALLIANCE FOR HISTORIC WYOMING
EIN 36-4578284
$110K
41WILDERNESS ADVENTURES FOUNDATION
EIN 86-2979213
$108K
42CASPER COMMUNITY GREENHOUSE PROJECT
EIN 46-0968958
$107K
43UINTA RECYCLING INC
EIN 20-0801134
$101K
44WYOMING OUTDOORSMEN
EIN 46-3865415
$96K
45INTERSTATE COUNCIL ON WATER POLICY
EIN 46-6182482
$91K
46LSRV MOSQUITO CONTROL INC
EIN 92-3376058
$88K
47GREEN RIVER GREENBELT TASK FORCE
EIN 83-0297926
$83K
48WYOMING SOLID WASTE AND RECYCLING ASSOCIATION
EIN 74-2685727
$76K
49NATIONAL HISTORIC TRAILS CENTER FOUNDATION INC
EIN 83-0299201
$68K
50TETON BOTANICAL GARDEN
EIN 45-0968326
$56K

Frequently asked questions about environment nonprofits in Wyoming

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

How many environment nonprofits operate in Wyoming?
Every IRS-registered environment nonprofit in Wyoming 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 Wyoming?
The single largest environment nonprofit in Wyoming 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 Wyoming 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 Wyoming 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 Wyoming are tax-deductible at the federal level; Wyoming state tax treatment may differ.
Where do environment nonprofits in Wyoming 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. Wyoming state charity registration is a separate state-level requirement.