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California environmental organizations

There are 3,835 environmental organizations in California. Combined, these Californian environmental organizations employ 20,648 people, earn more than $5 billion in revenue each year, and have assets of $10 billion.
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Types of environmental organizations in California

Nonprofit typeNumberRevenues
Natural resource conservation organizations
 
1,463
 
$3,159,911,167
Environmental education organizations
 
589
 
$627,284,837
Botanical nonprofits and horticultural societies
 
423
 
$153,146,324
Pollution abatement and control organizations
 
413
 
$734,146,801
Water quality and wetland conservation organizations
 
370
 
$713,615,555
Garden clubs and horticultural programs
 
305
 
$26,776,934
Land conservation organizations
 
276
 
$790,898,312
Civic environmental and open space organizations
 
230
 
$71,123,084
Energy conservation and development organizations
 
181
 
$819,465,669
Recycling programs
 
177
 
$121,302,229
Showing 10 of 17 categories

Environmental organizations by major California cities

Metro areaNonprofitsRevenues
Los Angeles
 
888
 
$720,404,456
San Francisco
 
751
 
$2,538,017,958
San Diego
 
395
 
$433,828,144
Sacramento
 
322
 
$378,694,984
Riverside
 
175
 
$151,662,271
Santa Rosa
 
135
 
$69,638,604
San Jose
 
133
 
$84,517,497
Santa Maria
 
87
 
$40,865,571
Oxnard
 
82
 
$48,239,511
San Luis Obispo
 
74
 
$27,662,329
Showing 10 of 25 metros

Job trends for California environmental organizations

Employees per organizationNumber of organizations
0
 
492
1-10
 
403
11-25
 
177
26-100
 
173
101 to 1,000
 
35
1,000+
 
1
Key takeaways for employment stats:

Sizes of environmental organizations in California

Revenues per organizationNumber of organizations
< $250k
 
944
$250k to $1M
 
393
$1M to $5M
 
314
$5M to $25M
 
135
$25M to $100M
 
17
$100M+
 
9
Key takeaways for revenue stats:

Directory of environmental organizations in California

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1-20 of 3,835

ClimateWorks Foundation

The ClimateWorks Foundation drives philanthropic efforts to innovate and scale impactful climate solutions, fostering global collaboration for a sustainable future.
Revenue
$330.5m
Assets
$503.1m
Employees
164
EIN
26-2303250
IRS type
501(c)(3)

Grid Alternatives

Grid Alternatives offers accessible renewable energy technology and job training to underprivileged communities, advancing economic and environmental justice.
Revenue
$23.1m
Assets
$33.3m
Employees
227
EIN
26-0043353
IRS type
501(c)(3)

Rainforest Action Network

Rainforest Action Network preserves forests, protects climate and human rights by challenging corporate power, with partners and strategic campaigns.
Revenue
$12.9m
Assets
$15.4m
Employees
53
EIN
94-3045180
IRS type
501(c)(3)

TreePeople

TreePeople inspires and supports personal responsibility for the urban environment by uniting nature-based solutions, research, and community engagement.
Revenue
$13.1m
Assets
$18.1m
Employees
151
EIN
23-7314838
IRS type
501(c)(3)

Climate Policy Initiative (CPI)

To help nations grow while addressing increasingly scarce resources and climate risk. This is a complex challenge in which policy plays a crucial role.
Revenue
$16.5m
Assets
$26.8m
Employees
32
EIN
26-4129153
IRS type
501(c)(3)

Sustainable Conservation

Sustainable Conservation partners with businesses, agriculture and government to protect California's land, air and water through collaboration and restoration.
Revenue
$5.4m
Assets
$7.6m
Employees
34
EIN
94-3232437
IRS type
501(c)(3)

California State Parks Foundation

California State Parks Foundation: Nonprofit improving and preserving California State Parks through community engagement, volunteer stewardship, and park improvements.
Revenue
$9.1m
Assets
$18.3m
Employees
26
EIN
94-1707583
IRS type
501(c)(3)

Sierra Club

Founded by legendary conservationist John Muir in 1892, the Sierra Club is now the nation's largest and most influential grassroots environmental organization, with more than two million members and supporters.
Revenue
$167.5m
Assets
$147.1m
Employees
1,052
EIN
94-1153307
IRS type
501(c)(4)

Sierra Club Foundation

Sierra Club Foundation educates and empowers people to protect the environment through programs like Our Wild America and Beyond Coal.
Revenue
$89.1m
Assets
$199.3m
Employees
19
EIN
94-6069890
IRS type
501(c)(3)

The Trust for Public Land

Creates and protects land for healthy communities. Helped plan and fund parks, completed 47 conservation projects, and passed 78% of ballot measures for $662 million.
Revenue
$297.4m
Assets
$324.3m
Employees
411
EIN
23-7222333
IRS type
501(c)(3)

Peninsula Open Space Trust

Post protects open space on the Peninsula and in the South Bay, creating a network of protected lands for people and nature.
Revenue
$24.8m
Assets
$337.0m
Employees
63
EIN
94-2392007
IRS type
501(c)(3)

Golden Gate National Parks Conservancy

Golden Gate National Parks Conservancy revitalizes parks, enhances visitor experiences, fosters community engagement, and supports conservation efforts across iconic Bay Area sites.
Revenue
$52.9m
Assets
$80.9m
Employees
359
EIN
94-2781708
IRS type
501(c)(3)

Earth Island Institute

Earth Island Institute supports grassroots environmental projects, fosters young leaders, and connects ecological issues with social justice through advocacy and its publication, Earth Island Journal.
Revenue
$34.9m
Assets
$42.5m
Employees
203
EIN
94-2889684
IRS type
501(c)(3)

Wildlife Heritage Foundation

The Wildlife Heritage Foundation is dedicated to protecting, enhancing, and restoring wildlife habitat on lands conserved for the benefit of future generations. They provide outdoor educational and recreational events for all ages, with a particular ...
Revenue
$6.4m
Assets
$100.6m
Employees
12
EIN
94-3352965
IRS type
501(c)(3)

Pacoima Beautiful

Pacoima Beautiful educates, impacts policy, and promotes a sustainable San Fernando Valley through environmental justice and partnerships.
Revenue
$7.3m
Assets
$6.4m
Employees
88
EIN
95-4770745
IRS type
501(c)(3)

John Muir Land Trust prev Muir Heritage Land Trust

Protects open space, ranches, farms, and shoreline in Contra Costa County for environmental sustainability; promotes local environmental awareness through outreach.
Revenue
$31.1m
Assets
$54.0m
Employees
29
EIN
68-0194652
IRS type
501(c)(3)

Global Energy Monitor

Global Energy Monitor develops info for clean energy, including oil and gas and coal databases, GCPT tracking operating coal plants.
Revenue
$9.3m
Assets
$5.9m
Employees
70
EIN
82-2723327
IRS type
501(c)(3)

Klamath River Renewal Corporation

KRRC restores the Klamath River by removing four hydroelectric dams and advancing design work and permitting efforts. Located in Berkeley, CA.
Revenue
$104.8m
Assets
$106.4m
Employees
5
EIN
81-2761910
IRS type
501(c)(3)

Filoli

Filoli: Historic estate and garden preserving California's rich history with beauty, nature, and shared stories. Publicly operated in Woodside, CA.
Revenue
$14.4m
Assets
$25.3m
Employees
109
EIN
95-2996648
IRS type
501(c)(3)

San Francisco Estuary Institute

SF Estuary Institute provides science support and tools for decision-making and communication, located in Richmond, CA.
Revenue
$13.8m
Assets
$18.5m
Employees
80
EIN
94-2951373
IRS type
501(c)(3)
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Methodology: Cause IQ mines all tax-exempt organizations that file a Form 990, Form 990-EZ, or Form 990-PF with the IRS. We collect and aggregate this information from OCR'd paper taxreturns, XML e-file taxreturns, IRS-provided extract, the Business Master File, and Cause IQ secret sauce for data cleaning, categorization, classification, analytics, etc.
This category corresponds to the "C00: Environment: General" National Taxonomy of Exempt Entities (NTEE) code. Cause IQ determines NTEEs for organizations by its own internally-developed secret-sauce algorithms.
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