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Tennessee · NTEE C

Environment Nonprofits in Tennessee

Givalgo Discover indexes 50 active environment nonprofits headquartered in Tennessee. 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
1DUCKS UNLIMITED INC
EIN 13-5643799
$380.3M
2DUCKS UNLIMITED INC
EIN 91-2009004
$65.8M
3HIGHLANDER RESEARCH & EDUCATION CENTER INC
EIN 62-0646373
$24.2M
4WETLANDS AMERICA TRUST INC
EIN 36-3330394
$19.5M
5SEVIER SOLID WASTE INC
EIN 62-1378187
$11.1M
6CUMBERLAND RIVER COMPACT INC
EIN 62-1709756
$9.6M
7SOUTHERN CONSERVATION CORP
EIN 16-1666137
$8.0M
8TENNESSEE WILDLIFE FEDERATION INCORPORATED
EIN 62-6047188
$6.6M
9SOUTHERN ALLIANCE FOR CLEAN ENERGY
EIN 58-1620669
$5.4M
10LAND TRUST FOR TENNESSEE INC
EIN 62-1770549
$5.0M
11UNION SPORTSMENS ALLIANCE
EIN 27-2345009
$4.9M
12TENNESSEE STATE PARKS CONSERVANCY
EIN 81-2827745
$4.8M
13MEMPHIS BOTANIC GARDEN FOUNDATION INC
EIN 23-7159172
$4.8M
14SAVING NATURE INC
EIN 84-2412702
$4.8M
15FRIENDS OF RADNOR LAKE
EIN 23-7322143
$4.6M
16CLINCH-POWELL RESOURCE CONSERVATION AND DEVELOPMENT ARE
EIN 62-1396815
$4.4M
17TENNESSEE RIVER GORGE TRUST INC
EIN 62-1278612
$3.8M
18GREAT SMOKY MOUNTAIN INSTITUTE
EIN 62-1833479
$3.3M
19WOLF RIVER CONSERVANCY INC
EIN 62-1245975
$3.2M
20IJAMS NATURE CENTER INC
EIN 59-1777902
$2.6M
21APPALACHIAN-NORTHEAST TENN RESOURCE CONSERVATION AND DEVELOPMENT COUNC
EIN 62-1590577
$2.5M
22REFLECTION RIDING ARBORETUM AND NATURE CENTER
EIN 58-1311080
$2.5M
23EAST TENNESSEE CLEAN FUELS COALITION
EIN 75-3073054
$2.4M
24HARPETH CONSERVANCY
EIN 62-1802858
$1.9M
25AMERICAN MATHEMATICAL ASSOCIATION OF TWO YEAR COLLEGES INC
EIN 11-2531258
$1.5M
26TENNESSEE ENVIRONMENTAL COUNCIL
EIN 62-0951294
$1.3M
27FOOTHILLS LAND CONSERVANCY
EIN 62-1256238
$1.3M
28BIG RIVER PARK CONSERVANCY
EIN 86-2115339
$1.2M
29GREENSPACES
EIN 27-2113695
$1.2M
30FRANKLIN S CHARGE INC
EIN 20-1774789
$1.1M
31CONSERVATION FISHERIES INC
EIN 62-1502226
$1.1M
32KNOXVILLE BOTANICAL GARDENS AND ARBORETUM
EIN 62-1868560
$1.0M
33LOOKOUT MOUNTAIN CONSERVANCY
EIN 62-1460535
$859K
34PROTECT OUR AQUIFER
EIN 81-4731640
$859K
35STATEWIDE ORGANIZING FOR COMMUNITY EMPOWERMENT RESOURCE PROJECT
EIN 58-1550966
$844K
36FRIENDS OF SHELBY PARK INC
EIN 26-2738429
$801K
37SOUTHEASTERN CAVE CONSERVANCY INC
EIN 58-1950768
$717K
38URBAN GREEN LAB
EIN 27-1011744
$697K
39FRIENDS OF MILL RIDGE PARK
EIN 81-4617752
$673K
40YOUNG GIFTED & GREEN
EIN 83-1920312
$607K
41METRO NASHVILLE PARKS FOUNDATION
EIN 47-3639207
$596K
42TREES KNOXVILLE
EIN 81-5291655
$533K
43ROCK THE OCEAN FOUNDATION
EIN 46-1317742
$508K
44ONE MILLION WELLS
EIN 82-1963744
$477K
45KEEP THE TENNESSEE RIVER BEAUTIFUL
EIN 82-2318211
$453K
46WATERWAYS
EIN 20-1065856
$446K
47KEEP KNOXVILLE BEAUTIFUL INC
EIN 62-1094445
$412K
48CHATTANOOGA AUDUBON SOCIETY
EIN 62-6047636
$385K
49TENNESSEE ADVANCED ENERGY BUSINESS COUNCIL
EIN 37-1703200
$378K
50DISCOVER LIFE IN AMERICA INC
EIN 62-1770910
$361K

A representative cross-section beyond the revenue ranking, from national institutions to small community groups and private foundations, chosen for complete, recent IRS filings.

Frequently asked questions about environment nonprofits in Tennessee

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

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