Efficiency Ranking · Environment & Animals

Most Efficient Environment & Animals Charities

Environment & Animals covers environmental, conservation, animal-welfare, and natural-resources nonprofits. 247 organizations, $15.8B in combined revenue.

Average efficiency is 63/100 across the Environment & Animals category. Conservation organizations split between large international groups with significant overhead infrastructure and smaller, regionally-focused land trusts and advocacy groups. Below: the full Environment & Animals nonprofit ranking sorted by efficiency score. Top of the list combines healthy financial reserves with controlled officer compensation and steady multi-year revenue.

247

Organizations

63/100

Avg Score

A-Rated

$15.8B

Total Revenue

#	Organization	State	Score	Revenue	Officer Pay	Grade
1	Multiplier California	California	90	$75.0M	$492K	A
2	San Diego Humane Society And S P C A California	California	89	$67.2M	$1.0M	A
3	Wildlife Conservation Network Inc California	California	86	$52.5M	$419K	A
4	Best Friends Animal Society Utah	Utah	85	$173.5M	$4.0M	A
5	Partnership Project Inc District of Columbia	District of Columbia	85	$41.1M	$540K	A
6	American Conservation Arizona	Arizona	84	$41.0M	$950K	A
7	National Association Of Conservation Districts Inc District of Columbia	District of Columbia	84	$20.0M	$497K	A
8	International Sustainable Energy Foundation Texas	Texas	83	$36.9M	$75K	A
9	The Wild Animal Sanctuary A Colorado Non Profit Corporation Colorado	Colorado	83	$33.9M	$894K	A
10	Lifeline Animal Project Inc Georgia	Georgia	83	$19.2M	$148K	A
11	California Waterfowl Association California	California	82	$27.0M	$593K	A
12	Clasp District of Columbia	District of Columbia	82	$26.3M	$1.1M	A
13	Great Hearts America Texas Texas	Texas	81	$110.8M	$1.3M	A
14	Social And Environmental Entrepreneurs Inc California	California	81	$87.5M	$455K	A
15	Great Basin Institute Nevada	Nevada	81	$44.2M	$834K	A
16	Neighborhood Recycling Corporation Minnesota	Minnesota	80	$22.7M	$537K	A
17	Center For Sustainable Energy California	California	79	$502.9M	$775K	B
18	Windward Fund District of Columbia	District of Columbia	79	$212.4M	$183K	B
19	Klamath River Renewal Corporation California	California	79	$104.8M	$896K	B
20	National Arbor Day Foundation Nebraska	Nebraska	79	$99.1M	$3.4M	B
21	Great Lakes Fishery Commission Michigan	Michigan	79	$82.1M	$272K	B
22	Rewild Texas	Texas	79	$53.3M	$648K	B
23	League Of Conservation Voters Education Fund District of Columbia	District of Columbia	79	$51.5M	$209K	B
24	Elevate Energy Illinois	Illinois	79	$50.9M	$297K	B
25	Earth Island Institute Inc California	California	79	$34.9M	$845K	B
26	Highlander Research & Education Center Inc Tennessee	Tennessee	79	$23.7M	$190K	B
27	Ducks Unlimited Inc Tennessee	Tennessee	78	$302.2M	$3.4M	B
28	Resources Legacy Fund California	California	78	$131.0M	$1.5M	B
29	Friends Of The Zoo Inc Of Kansas City Mo Missouri	Missouri	78	$62.5M	$907K	B
30	The Recycling Partnership Inc District of Columbia	District of Columbia	78	$37.1M	$487K	B
31	Colorado Open Lands Colorado	Colorado	78	$33.1M	$208K	B
32	Fairmount Park Conservancy Pennsylvania	Pennsylvania	78	$26.1M	$378K	B
33	Texas Agricultural Land Trust Texas	Texas	78	$12.1M	$181K	B
34	Massachusetts Society For The Prevention Of Cruelty To Animals Massachusetts	Massachusetts	77	$120.3M	$2.3M	B
35	People For The Ethical Treatment Of Animals Inc Virginia	Virginia	77	$69.9M	$177K	B
36	National Marine Sanctuary Foundation Maryland	Maryland	77	$21.6M	$290K	B
37	American Society For The Prevention Of Cruelty To Animals New York	New York	76	$379.3M	$5.1M	B
38	World Wildlife Fund Inc District of Columbia	District of Columbia	76	$372.8M	$5.0M	B
39	Trust For Public Land California	California	76	$297.4M	$6.2M	B
40	Energy Trust Of Oregon Inc Oregon	Oregon	76	$222.7M	$534K	B
41	Vermont Energy Investment Corp Vermont	Vermont	76	$123.1M	$1.5M	B
42	Aquarium Of The Pacific California	California	76	$57.0M	$1.2M	B
43	Denver Botanic Garden Inc Colorado	Colorado	76	$46.0M	$1.1M	B
44	Point Reyes Bird Observatory California	California	76	$20.7M	$671K	B
45	Pennsylvania Horticultural Society Pennsylvania	Pennsylvania	75	$37.8M	$785K	B
46	River Partners California	California	75	$28.1M	$341K	B
47	World Wildlife Fund Canada Unknown	Unknown	75	$25.0M	$384K	B
48	Minnesota Land Trust Minnesota	Minnesota	75	$18.9M	$525K	B
49	Slipstream Group Inc Wisconsin	Wisconsin	74	$45.8M	$514K	B
50	U S Green Building Council Inc District of Columbia	District of Columbia	74	$41.2M	$873K	B
51	Florida Aquarium Inc Florida	Florida	74	$40.7M	$1.3M	B
52	Sustainable Markets Foundation New York	New York	74	$39.2M	—	B
53	Montana Land Reliance Montana	Montana	74	$37.9M	—	B
54	Sea Research Foundation Inc Connecticut	Connecticut	74	$32.6M	$657K	B
55	New England Interstate Water Pollution Control Commission Massachusetts	Massachusetts	74	$19.2M	$438K	B
56	Earthshare District of Columbia	District of Columbia	74	$8.8M	$288K	B
57	The Conservation Fund A Nonprofit Corporation Virginia	Virginia	73	$327.4M	$4.4M	B
58	Paintcare Inc District of Columbia	District of Columbia	73	$78.8M	$983K	B
59	National Aquarium Inc Maryland	Maryland	73	$55.6M	$2.1M	B
60	National Wild Turkey Federation Inc South Carolina	South Carolina	73	$54.1M	$1.4M	B
61	Birdlife International Unknown	Unknown	73	$45.6M	$1.5M	B
62	Lowry Park Zoological Society Of Tampa Inc Florida	Florida	73	$39.4M	$1.3M	B
63	American Bird Conservancy Virginia	Virginia	73	$27.9M	$820K	B
64	Jane Goodall Institute For Wildlife Research Education & Conservation District of Columbia	District of Columbia	73	$27.4M	$1.4M	B
65	American Forests District of Columbia	District of Columbia	73	$24.3M	$1.1M	B
66	National Wildlife Federation Virginia	Virginia	72	$117.9M	$3.3M	B
67	Woodland Park Zoological Society Washington	Washington	72	$64.7M	$2.4M	B
68	Detroit Zoological Society Michigan	Michigan	72	$54.3M	$1.9M	B
69	Marine Stewardship Council Unknown	Unknown	72	$33.6M	$1.3M	B
70	Dove Lewis Emergency Animal Hospital Inc Oregon	Oregon	72	$29.8M	$998K	B
71	Bonneville Environmental Foundation Oregon	Oregon	72	$22.1M	$962K	B
72	Great Barrier Reef Foundation Usa Inc District of Columbia	District of Columbia	72	$1.5M	—	B
73	Grid Alternatives California	California	71	$43.8M	$1.4M	B
74	Ceres Inc Massachusetts	Massachusetts	71	$43.5M	$2.4M	B
75	Audubon Nature Institute Inc Louisiana	Louisiana	71	$42.1M	$1.4M	B
76	Northwest Energy Efficiency Alliance Inc Oregon	Oregon	71	$35.5M	$603K	B
77	Center For Biological Diversity Inc Arizona	Arizona	71	$34.5M	$1.7M	B
78	Michigan Humane Society Michigan	Michigan	71	$27.8M	$918K	B
79	Wvc Nevada	Nevada	71	$26.5M	$1.9M	B
80	American Humane Association District of Columbia	District of Columbia	71	$25.9M	$1.1M	B
81	Florida Veterinary Medicine Faculty Association Inc Florida	Florida	71	$24.9M	—	B
82	Emancipet Texas	Texas	71	$24.9M	$754K	B
83	Commonwealth Zoological Corporation Massachusetts	Massachusetts	70	$31.5M	$1.1M	B
84	John Ball Zoo Michigan	Michigan	70	$24.2M	$1.1M	B
85	The Humane League Maryland	Maryland	70	$18.5M	$391K	B
86	Humane World For Animals Inc Maryland	Maryland	69	$175.0M	$3.9M	B
87	Trout Unlimited Inc Virginia	Virginia	69	$62.7M	$1.7M	B
88	Petsmart Charities Inc Arizona	Arizona	69	$61.9M	—	B
89	The Barn Group Land Trust Inc Georgia	Georgia	69	$60.9M	$589K	B
90	Golden Gate National Parks Conservancy California	California	69	$52.9M	$2.1M	B
91	Water Environment Federation Virginia	Virginia	69	$26.8M	$868K	B
92	Center For Energy And Environment Minnesota	Minnesota	69	$24.5M	$1.3M	B
93	San Antonio Zoological Society Inc Texas	Texas	68	$63.8M	$1.3M	B
94	Global Greengrants Fund Inc Colorado	Colorado	68	$42.6M	$630K	B
95	Center For International Forestry Research Unknown	Unknown	68	$35.9M	$1.2M	B
96	Elemental Excelerator Inc Hawaii	Hawaii	68	$35.7M	$1.8M	B
97	Western Reserve Land Conservancy Ohio	Ohio	68	$19.2M	—	B
98	Sonoma Land Trust California	California	68	$16.5M	$438K	B
99	New Venture Fund District of Columbia	District of Columbia	67	$669.1M	$744K	B
100	San Diego Zoo Wildlife Alliance California	California	67	$411.0M	$5.6M	B
101	New England Aquarium Corporation Massachusetts	Massachusetts	67	$65.4M	$3.6M	B
102	Oceana Inc District of Columbia	District of Columbia	67	$46.5M	$2.5M	B
103	Product Care Association Unknown	Unknown	67	$32.8M	$468K	B
104	Environmental Defense Fund Incorporated New York	New York	66	$247.1M	$3.5M	B
105	Iso New England Inc Massachusetts	Massachusetts	66	$235.6M	$16.9M	B
106	Conservation International Foundation Virginia	Virginia	66	$235.1M	$3.6M	B
107	Urban Land Institute District of Columbia	District of Columbia	66	$95.6M	$5.7M	B
108	Fort Worth Zoological Association Inc Texas	Texas	66	$53.1M	$834K	B
109	C40 Cities Climate Leadership Group Inc New York	New York	66	$47.2M	$611K	B
110	International Centre For Research In Agroforestry Unknown	Unknown	66	$44.4M	$1.5M	B
111	The Animal Medical Center New York	New York	65	$91.9M	$2.3M	B
112	Ocean Conservancy Inc District of Columbia	District of Columbia	65	$48.6M	$2.4M	B
113	Sustainable Energy Utility Inc Delaware	Delaware	65	$45.0M	$130K	B
114	Jacksonville Zoological Society Inc Florida	Florida	65	$37.3M	$472K	B
115	Grid Alternatives California	California	65	$23.1M	$393K	B
116	San Francisco Zoological Society California	California	65	$22.5M	$590K	B
117	American Rivers Inc District of Columbia	District of Columbia	65	$21.8M	$1.4M	B
118	Rocky Mountain Elk Foundation Inc Montana	Montana	64	$66.0M	$2.0M	C
119	Arizona Center For Nature Conservation Arizona	Arizona	64	$46.7M	$1.7M	C
120	Cdp North America Inc New York	New York	64	$38.4M	$936K	C
121	Defenders Of Wildlife District of Columbia	District of Columbia	63	$35.9M	$2.9M	C
122	International Fund For Animal Welfare Inc Massachusetts	Massachusetts	63	$35.2M	$611K	C
123	Serc Reliability Corporation North Carolina	North Carolina	63	$33.2M	$3.0M	C
124	Conservation Society Of California California	California	63	$30.9M	$397K	C
125	Council On The Environment Inc New York	New York	63	$30.3M	$781K	C
126	Coastal Conservation Association Texas	Texas	63	$26.5M	$2.2M	C
127	Climate Imperative Foundation California	California	62	$206.7M	—	C
128	North Shore Animal League America Inc New York	New York	62	$45.1M	$1.7M	C
129	Zoological Society Of Philadelphia Pennsylvania	Pennsylvania	62	$43.4M	$1.3M	C
130	Thanksgiving Point Institute Inc Utah	Utah	62	$40.0M	—	C
131	East Coast Zoological Society Of Florida Inc Florida	Florida	62	$29.3M	$712K	C
132	Yellowstone Forever Montana	Montana	62	$21.3M	$444K	C
133	Conservation Law Foundation Inc Massachusetts	Massachusetts	62	$16.5M	$568K	C
134	National Fish And Wildlife Foundation District of Columbia	District of Columbia	61	$415.5M	$3.6M	C
135	Earthjustice California	California	61	$126.0M	$3.0M	C
136	Open Space Institute Land Trust Inc New York	New York	61	$74.8M	$4.6M	C
137	African Wildlife Foundation District of Columbia	District of Columbia	61	$33.7M	$2.4M	C
138	Tennessee Aquarium Tennessee	Tennessee	61	$31.5M	$1.1M	C
139	Zoological Society Of Pittsburgh Pennsylvania	Pennsylvania	61	$27.6M	$1.0M	C
140	Alliance To End Plastic Waste Inc Texas	Texas	60	$80.1M	$4.6M	C
141	Stanford Health Care Advantage California	California	60	$50.2M	—	C
142	National Outdoor Leadership School Wyoming	Wyoming	60	$44.7M	$1.3M	C
143	Climate Lead Inc California	California	60	$31.0M	$2.1M	C
144	Memphis Zoo Inc Tennessee	Tennessee	60	$25.9M	$1.1M	C
145	Denver Zoological Foundation Inc Colorado	Colorado	59	$61.8M	$1.8M	C
146	Napa County Land Trust California	California	59	$48.1M	$358K	C
147	Buffalo Bayou Partnership Texas	Texas	59	$42.6M	$390K	C
148	Catskill Watershed Corporation New York	New York	59	$31.9M	$92K	C
149	Greenpeace Fund Inc District of Columbia	District of Columbia	59	$22.0M	$689K	C
150	Triangle Land Conservancy Inc North Carolina	North Carolina	59	$18.2M	$132K	C
151	Ocean Habitat And Wildlife Rescue Inc Florida	Florida	59	$13.2M	$33K	C
152	Redwood Forest Foundation Inc California	California	59	$8.6M	$96K	C
153	Allied Climate Partners Inc New York	New York	59	$7.8M	$192K	C
154	Maui Humane Society Inc Hawaii	Hawaii	59	$6.4M	$299K	C
155	Zoological Society Of Cincinnati Ohio	Ohio	58	$119.6M	$1.7M	C
156	Sierra Club Foundation California	California	58	$89.1M	$1.4M	C
157	Atlanta Botanical Garden Inc Georgia	Georgia	58	$65.3M	$1.8M	C
158	Governors Island Corporation New York	New York	58	$65.2M	$1.1M	C
159	Climate And Clean Energy Equity Fund District of Columbia	District of Columbia	58	$39.1M	—	C
160	Coastal Maine Botanical Gardens Inc Maine	Maine	58	$19.4M	$272K	C
161	Climate Arc Inc Delaware	Delaware	58	$2.6M	—	C
162	Massachusetts Audubon Society Inc Massachusetts	Massachusetts	57	$73.7M	$1.2M	C
163	Paws Chicago Illinois	Illinois	57	$32.4M	$553K	C
164	Rare Inc Virginia	Virginia	57	$30.9M	$4.0M	C
165	Iowa Natural Heritage Foundation Iowa	Iowa	57	$29.8M	$366K	C
166	Desert Botanical Garden Arizona	Arizona	57	$26.7M	$787K	C
167	Grand Traverse Regional Land Conservancy Michigan	Michigan	57	$14.5M	$264K	C
168	Monterey Bay Aquarium Foundation California	California	56	$155.9M	$3.3M	C
169	Chicago Zoological Society Illinois	Illinois	56	$94.3M	$2.7M	C
170	Indianapolis Zoological Society Inc Indiana	Indiana	56	$50.1M	$1.1M	C
171	Lincoln Park Zoological Society Illinois	Illinois	56	$48.4M	$1.1M	C
172	Atlanta Fulton County Zoo Inc Georgia	Georgia	56	$46.5M	$1.1M	C
173	Clean Air Task Force Inc Massachusetts	Massachusetts	56	$46.3M	$5.2M	C
174	Mattress Recycling Council Virginia	Virginia	56	$42.2M	—	C
175	Arizona Humane Society Arizona	Arizona	56	$40.9M	$1.3M	C
176	Fish & Wildlife Foundation Of Florida Inc Florida	Florida	56	$19.4M	$415K	C
177	Karuna Foundation Colorado	Colorado	55	$34.5M	—	C
178	Cheyenne Mountain Zoological Society Colorado	Colorado	55	$32.5M	$830K	C
179	Dallas Zoo Management Inc Texas	Texas	55	$32.4M	$860K	C
180	Humane Society Of Missouri Missouri	Missouri	55	$30.8M	$720K	C
181	Southern Appalachian Highlands Conservancy North Carolina	North Carolina	55	$11.0M	$311K	C
182	National Audubon Society Inc New York	New York	54	$156.1M	$1.8M	C
183	Marshall Area Economic Development Alliance Michigan	Michigan	54	$151.6M	—	C
184	Shedd Aquarium Society Illinois	Illinois	54	$93.0M	$3.1M	C
185	Houston Zoo Inc Texas	Texas	54	$82.5M	$1.6M	C
186	The Saint Louis Zoo Foundation Missouri	Missouri	54	$63.3M	—	C
187	Seattle Aquarium Society Seas Washington	Washington	54	$53.3M	$1.8M	C
188	Toledo Zoological Society Ohio	Ohio	54	$47.5M	$1.1M	C
189	Palladium Foundation Utah	Utah	54	$41.1M	—	C
190	Fresnos Chaffee Zoo Corporation California	California	54	$40.4M	$1.2M	C
191	The Living Desert California	California	54	$30.6M	$824K	C
192	Verra District of Columbia	District of Columbia	54	$29.8M	$2.5M	C
193	Nia Tero Foundation Washington	Washington	54	$26.2M	$1.9M	C
194	Rivian Foundation California	California	54	$25.0M	—	C
195	The Maryland Zoological Society Inc Maryland	Maryland	54	$21.6M	$518K	C
196	Mds Famly Foundation Inc Florida	Florida	54	$10.0M	—	C
197	Virginia B Jontes Foundation Arizona	Arizona	54	$5.0M	—	C
198	Wildlife Conservation Society New York	New York	53	$345.5M	$5.9M	C
199	Natural Resources Defense Council Inc New York	New York	53	$193.1M	$5.3M	C
200	Georgia Aquarium Inc Georgia	Georgia	53	$154.0M	$5.7M	C
201	Nashville Zoo Inc Tennessee	Tennessee	53	$47.4M	$1.7M	C
202	San Francisco Society For The Prevention Of Cruelty To Animals California	California	53	$46.0M	$3.8M	C
203	Brooklyn Botanic Garden Corporation New York	New York	53	$30.5M	$688K	C
204	Shelburne Farms Vermont	Vermont	53	$10.0M	$279K	C
205	Columbus Zoological Park Association Ohio	Ohio	52	$87.3M	$2.0M	C
206	Appalachian Mountain Club Massachusetts	Massachusetts	52	$46.0M	$1.8M	C
207	Save The Redwoods League California	California	52	$38.8M	$1.3M	C
208	Animal Care And Control Of New York City Inc New York	New York	52	$29.3M	$864K	C
209	American Prairie Foundation Montana	Montana	52	$25.0M	$1.1M	C
210	Wildlands Conservancy California	California	52	$12.2M	$473K	C
211	Sunrise Project Inc Delaware	Delaware	51	$33.3M	$825K	C
212	Omaha Zoo Foundation Nebraska	Nebraska	51	$31.9M	$480K	C
213	Peconic Land Trust Incorporated New York	New York	51	$17.4M	$946K	C
214	Western Rivers Conservancy Oregon	Oregon	51	$16.8M	$877K	C
215	Wilderness Society District of Columbia	District of Columbia	50	$39.2M	$2.5M	C
216	National Parks Conservation Association District of Columbia	District of Columbia	50	$35.1M	$2.1M	C
217	Dallas Arboretum & Botanical Texas	Texas	50	$27.8M	$1.1M	C
218	Akron Zoological Park Ohio	Ohio	50	$23.9M	$1.4M	C
219	Forest Park Forever Inc Missouri	Missouri	50	$22.5M	$1.3M	C
220	Carbon Mapper Inc California	California	50	$17.0M	$606K	C
221	Mule Deer Foundation Utah	Utah	50	$1.5M	$107K	C
222	Chicago Horticultural Society Illinois	Illinois	49	$76.9M	$2.3M	D
223	Omaha Zoological Society Inc Nebraska	Nebraska	49	$70.8M	$2.3M	D
224	Volgenau Foundation Virginia	Virginia	49	$40.6M	—	D
225	Western Pennsylvania Conservancy Pennsylvania	Pennsylvania	49	$34.5M	$1.9M	D
226	Humane World For Animals International District of Columbia	District of Columbia	49	$29.0M	$1.1M	D
227	Montgomery County Green Bank Corp Maryland	Maryland	48	$20.8M	$1.6M	D
228	Trustees Of Reservations Massachusetts	Massachusetts	47	$50.5M	$1.8M	D
229	Oregon Humane Society Oregon	Oregon	47	$28.9M	$613K	D
230	National Tropical Botanical Garden Hawaii	Hawaii	47	$12.9M	$310K	D
231	Peninsula Humane Society & Spca California	California	45	$19.8M	$1.2M	D
232	Denver Dumb Friends League Colorado	Colorado	44	$25.2M	$628K	D
233	Missouri Botanical Garden Board Of Trustees Missouri	Missouri	43	$55.5M	$3.0M	D
234	Ahimsa Foundation Colorado	Colorado	42	$55.1M	—	D
235	Greenacres Foundation Ohio	Ohio	42	$22.3M	—	D
236	Christensen Fund California	California	42	$6.7M	—	D
237	Chesapeake Bay Foundation Inc Maryland	Maryland	41	$32.2M	$1.6M	D
238	West Michigan Horticultural Society Inc Michigan	Michigan	41	$30.1M	$690K	D
239	Naples Botanical Garden Inc Florida	Florida	41	$17.2M	$1.3M	D
240	Johnny Morris Ozarks Heritage Preserve Missouri	Missouri	40	$25.7M	—	D
241	Consortium For Energy Environment And Demilitarization District of Columbia	District of Columbia	39	$63.0M	$764K	D
242	Morton Arboretum Illinois	Illinois	38	$45.1M	$2.6M	D
243	New York Botanical Garden New York	New York	37	$87.2M	$2.4M	D
244	New England Wildlife Center Massachusetts	Massachusetts	34	$3.2M	$759K	F
245	Ducks Unlimited Inc Tennessee	Tennessee	32	$59.3M	—	F
246	Peninsula Open Space Trust California	California	29	$24.8M	$1.8M	F
247	Fondo Mexicano Para La Conservacion De La Naturaleza Ac Unknown	Unknown	22	$2.1M	$453K	F

Frequently Asked Questions

The most efficient environment & animals charities are ranked above by Efficiency Score. Multiplier leads with a score of 90/100. The category average is 63/100.

The environment & animals sector has 247 tracked organizations with an average Efficiency Score of 63/100 and 16 A-rated charities.