- Insights
- Top Environmental Organizations by Employees
The environmental organizations that employ the most people have between 154 and 4,185 employees, and tend to run environmental education, energy conservation, or natural resource conservation programs (among other types of environmental organizations). The more popular environmental organizations — Nature Conservancy, Greenpeace, Sierra Club, etc. — are present, but the realm of environmental nonprofits is much larger than just environmental advocacy. And geographically these top environmental organizations are distributed throughout the country, with states like Minnesota, Colorado, and Montana having a disproportionate presence.
Trends among the top environmental organizations
List of the top environmental organizations
Employees:
4,185
Revenue:
$998,088,724
NTEE:
EIN:
53-0242652
Location:
Website:
Founded:
1951
Employees:
2,838
Revenue:
$263,863,758
NTEE:
EIN:
13-1740011
Location:
Website:
Founded:
1895
Employees:
2,605
Revenue:
$37,357,144
NTEE:
EIN:
91-0880684
Location:
Website:
Founded:
1964
Employees:
2,043
Revenue:
$28,043,844
NTEE:
EIN:
84-1450808
Location:
Website:
Founded:
1998
Employees:
1,621
Revenue:
$20,275,082
NTEE:
EIN:
37-1473291
Location:
Website:
Founded:
2004
Employees:
1,312
Revenue:
$60,962,503
NTEE:
EIN:
92-0156736
Location:
Website:
Founded:
1992
Employees:
1,291
Revenue:
$36,732,324
NTEE:
EIN:
52-1541501
Location:
Website:
Founded:
1987
Employees:
1,220
Revenue:
$48,480,848
NTEE:
EIN:
04-2104702
Location:
Website:
Founded:
1896
Employees:
1,138
Revenue:
$39,933,201
NTEE:
EIN:
83-0204184
Location:
Website:
Founded:
1965
Employees:
1,096
Revenue:
$140,724,390
NTEE:
EIN:
13-1624102
Location:
Website:
Founded:
1905
Employees:
961
Revenue:
$143,677,959
NTEE:
EIN:
94-1153307
Location:
Website:
Founded:
1892
Employees:
863
Revenue:
$4,746,822
NTEE:
EIN:
13-2876109
Location:
Website:
Founded:
1976
Employees:
860
Revenue:
$185,639,721
NTEE:
EIN:
11-6107128
Location:
Website:
Founded:
1967
Employees:
814
Revenue:
$42,674,880
NTEE:
EIN:
04-2105780
Location:
Website:
Founded:
1891
Employees:
767
Revenue:
$43,806,285
NTEE:
EIN:
04-6001677
Location:
Website:
Founded:
1876
Employees:
763
Revenue:
$181,821,968
NTEE:
EIN:
13-2654926
Location:
Website:
Founded:
1970
Employees:
709
Revenue:
$16,509,588
NTEE:
EIN:
88-0431016
Location:
Website:
Founded:
1999
Employees:
659
Revenue:
$201,529,617
NTEE:
EIN:
13-5643799
Location:
Website:
Founded:
1937
Employees:
653
Revenue:
$2,726,950
NTEE:
EIN:
20-4510571
Location:
Website:
Founded:
2005
Employees:
641
Revenue:
$3,363,510
NTEE:
EIN:
74-1590351
Location:
Website:
Founded:
1964
Employees:
636
Revenue:
$249,933,507
NTEE:
EIN:
52-1693387
Location:
Website:
Founded:
1960
Employees:
622
Revenue:
$159,318,068
NTEE:
EIN:
52-1257057
Location:
Website:
Founded:
1982
Employees:
606
Revenue:
$104,693,614
NTEE:
EIN:
53-0193519
Location:
Website:
Founded:
1888
Employees:
548
Revenue:
$67,544,820
NTEE:
EIN:
94-2781708
Location:
Website:
Founded:
1981
Employees:
516
Revenue:
$83,851,981
NTEE:
EIN:
23-7169265
Location:
Website:
Founded:
1971
Employees:
481
Revenue:
$7,859,830
NTEE:
EIN:
81-0467431
Location:
Website:
Founded:
1990
Employees:
478
Revenue:
$8,353,381
NTEE:
EIN:
41-1881102
Location:
Website:
Founded:
1999
Employees:
452
Revenue:
$47,739,933
NTEE:
EIN:
30-0126510
Location:
Website:
Founded:
2002
Employees:
443
Revenue:
$142,134,426
NTEE:
EIN:
23-7222333
Location:
Website:
Founded:
1972
Employees:
440
Revenue:
$62,741,195
NTEE:
EIN:
41-1429149
Location:
Website:
Founded:
1982
Employees:
427
Revenue:
$140,400,903
NTEE:
EIN:
52-1497470
Location:
Website:
Founded:
1987
Employees:
403
Revenue:
$20,011,560
NTEE:
EIN:
54-6057095
Location:
Website:
Founded:
1965
Employees:
386
Revenue:
$94,376,443
NTEE:
EIN:
53-0204616
Location:
Website:
Founded:
1939
Employees:
385
Revenue:
$5,139,806
NTEE:
EIN:
52-2082054
Location:
Website:
Founded:
1999
Employees:
364
Revenue:
$3,155,399
NTEE:
EIN:
84-1483022
Location:
Website:
Founded:
1999
Employees:
352
Revenue:
$6,817,175
NTEE:
EIN:
43-0652614
Location:
Website:
Founded:
1925
Employees:
349
Revenue:
$16,179,766
NTEE:
EIN:
13-2765465
Location:
Website:
Founded:
1970
Employees:
347
Revenue:
$10,975,854
NTEE:
EIN:
61-0728039
Location:
Founded:
1972
Employees:
328
Revenue:
$14,638,878
NTEE:
EIN:
41-0907135
Location:
Website:
Founded:
1966
Employees:
325
Revenue:
$19,439,441
NTEE:
EIN:
94-2145930
Location:
Website:
Founded:
1971
Employees:
325
Revenue:
$1,995,844
NTEE:
EIN:
11-2717326
Location:
Website:
Founded:
1985
Employees:
323
Revenue:
$53,649,485
NTEE:
EIN:
38-1612715
Location:
Website:
Founded:
1959
Employees:
320
Revenue:
$40,035,671
NTEE:
EIN:
57-0564993
Location:
Website:
Founded:
1973
Employees:
310
Revenue:
$87,429,577
NTEE:
EIN:
03-0304418
Location:
Website:
Founded:
1986
Employees:
301
Revenue:
$3,735,897
NTEE:
EIN:
04-2111550
Location:
Website:
Founded:
1930
Employees:
301
Revenue:
$9,100,465
NTEE:
EIN:
56-0857708
Location:
Website:
Founded:
1966
Employees:
298
Revenue:
$8,222,619
NTEE:
EIN:
04-2621656
Location:
Website:
Founded:
1977
Employees:
298
Revenue:
$9,582,228
NTEE:
EIN:
51-0652665
Location:
Website:
Founded:
2007
Employees:
296
Revenue:
$4,602,285
NTEE:
EIN:
41-1291626
Location:
Website:
Founded:
1976
Employees:
285
Revenue:
$36,785,947
NTEE:
EIN:
81-4042787
Location:
Website:
Founded:
2013
Employees:
283
Revenue:
$5,789,191
NTEE:
EIN:
22-3171185
Location:
Website:
Founded:
1991
Employees:
279
Revenue:
$1,095,499
NTEE:
EIN:
22-2668396
Location:
Website:
Founded:
1992
Employees:
277
Revenue:
$24,653,253
NTEE:
EIN:
25-1053485
Location:
Website:
Founded:
1932
Employees:
277
Revenue:
$29,836,973
NTEE:
EIN:
52-6065757
Location:
Website:
Founded:
1966
Employees:
273
Revenue:
$81,836,312
NTEE:
EIN:
58-2231207
Location:
Website:
Founded:
1997
Employees:
272
Revenue:
$6,072,235
NTEE:
EIN:
84-0619264
Location:
Website:
Founded:
1972
Employees:
265
Revenue:
$4,283,767
NTEE:
EIN:
68-0404081
Location:
Website:
Founded:
1997
Employees:
264
Revenue:
$5,046,950
NTEE:
EIN:
33-0556414
Location:
Website:
Founded:
1992
Employees:
258
Revenue:
$4,165,746
NTEE:
EIN:
33-0293393
Location:
Website:
Founded:
1987
Employees:
251
Revenue:
$15,105,671
NTEE:
EIN:
83-0219163
Location:
Website:
Founded:
1974
Employees:
250
Revenue:
$3,409,471
NTEE:
EIN:
36-4519273
Location:
Website:
Founded:
1998
Employees:
248
Revenue:
$3,314,425
NTEE:
EIN:
03-0328834
Location:
Website:
Founded:
1991
Employees:
247
Revenue:
$4,202,537
NTEE:
EIN:
13-5657791
Location:
Website:
Founded:
1886
Employees:
244
Revenue:
$11,564,632
NTEE:
EIN:
01-0269460
Location:
Website:
Founded:
1917
Employees:
241
Revenue:
$15,017,632
NTEE:
EIN:
37-0890281
Location:
Website:
Founded:
1965
Employees:
240
Revenue:
$6,652,124
NTEE:
EIN:
31-1113570
Location:
Website:
Founded:
1984
Employees:
238
Revenue:
$9,922,088
NTEE:
EIN:
94-3025807
Location:
Website:
Founded:
1986
Employees:
237
Revenue:
$15,352,923
NTEE:
EIN:
94-2889684
Location:
Website:
Founded:
1982
Employees:
227
Revenue:
$8,598,566
NTEE:
EIN:
31-1654076
Location:
Website:
Founded:
1999
Employees:
227
Revenue:
$22,208,442
NTEE:
EIN:
95-4116679
Location:
Website:
Founded:
1994
Employees:
223
Revenue:
$39,068,009
NTEE:
EIN:
52-1822816
Location:
Website:
Founded:
1993
Employees:
221
Revenue:
$53,502,081
NTEE:
EIN:
74-2244146
Location:
Website:
Founded:
1982
Employees:
220
Revenue:
$221,481,591
NTEE:
EIN:
52-1388917
Location:
Website:
Founded:
1985
Employees:
215
Revenue:
$10,692,790
NTEE:
EIN:
51-6020908
Location:
Website:
Founded:
1967
Employees:
211
Revenue:
$239,231,273
NTEE:
EIN:
33-0936366
Location:
Website:
Founded:
2000
Employees:
206
Revenue:
$39,889,386
NTEE:
EIN:
52-1436778
Location:
Website:
Founded:
1985
Employees:
205
Revenue:
$15,196,417
NTEE:
EIN:
47-5427975
Location:
Website:
Founded:
2015
Employees:
204
Revenue:
$4,431,956
NTEE:
EIN:
77-0359133
Location:
Website:
Founded:
1993
Employees:
199
Revenue:
$2,413,931
NTEE:
EIN:
62-1396815
Location:
Website:
Founded:
1990
Employees:
196
Revenue:
$47,029,978
NTEE:
EIN:
53-0225165
Location:
Website:
Founded:
1919
Employees:
192
Revenue:
$4,362,442
NTEE:
EIN:
55-0485438
Location:
Website:
Founded:
1965
Employees:
191
Revenue:
$4,102,069
NTEE:
EIN:
93-0708637
Location:
Website:
Founded:
1978
Employees:
190
Revenue:
$48,356,747
NTEE:
EIN:
39-1356152
Location:
Website:
Founded:
1980
Employees:
186
Revenue:
$38,632,475
NTEE:
EIN:
51-0401308
Location:
Website:
Founded:
2001
Employees:
183
Revenue:
$2,291,381
NTEE:
EIN:
34-1821699
Location:
Website:
Founded:
1996
Employees:
178
Revenue:
$4,348,530
NTEE:
EIN:
51-6018321
Location:
Website:
Founded:
1964
Employees:
176
Revenue:
$28,963,895
NTEE:
EIN:
31-1594197
Location:
Website:
Founded:
1998
Employees:
173
Revenue:
$5,565,929
NTEE:
EIN:
31-0672822
Location:
Website:
Founded:
1937
Employees:
172
Revenue:
$35,045,245
NTEE:
EIN:
53-0167933
Location:
Website:
Founded:
1937
Employees:
171
Revenue:
$19,667,051
NTEE:
EIN:
41-1647799
Location:
Website:
Founded:
1989
Employees:
170
Revenue:
$2,763,556
NTEE:
EIN:
13-1771421
Location:
Website:
Founded:
1887
Employees:
168
Revenue:
$5,363,004
NTEE:
EIN:
41-0877459
Location:
Website:
Founded:
1963
Employees:
166
Revenue:
$12,182,832
NTEE:
EIN:
02-0268636
Location:
Website:
Founded:
1965
Employees:
166
Revenue:
$12,284,416
NTEE:
EIN:
86-0179548
Location:
Website:
Founded:
1932
Employees:
165
Revenue:
$6,126,150
NTEE:
EIN:
04-6089174
Location:
Website:
Founded:
1964
Employees:
160
Revenue:
$6,506,337
NTEE:
EIN:
75-1230663
Location:
Website:
Founded:
1965
Employees:
158
Revenue:
$8,098,464
NTEE:
EIN:
04-3027900
Location:
Website:
Founded:
1988
Employees:
154
Revenue:
$3,911,870
NTEE:
EIN:
58-1275604
Location:
Website:
Founded:
1976
Employees:
154
Revenue:
$7,511,483
NTEE:
EIN:
35-2065459
Location:
Website:
Founded:
1998
Employees:
154
Revenue:
$15,742,612
NTEE:
EIN:
63-0779657
Location:
Website:
Founded:
1971