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California · Public charity

Sierra Club

To explore, enjoy, and protect the wild places of the earth; practice and promote responsible use of the earth's ecosystems and resources; educate and enlist humanity to protect and restore the quality of the natural and human environment; and use all lawful means to carry out these objectives.

$286k
Granted FY2025(still arriving)
7
Itemized grants FY2025
37
Organizations funded FY2024
76%
First-time grantees FY2024
Read the full brief
Itemized, FY2025
$239k
The rest is grants the schedule does not break out
Median grant, FY2025
$28,000
Largest grant, FY2025
$100,000
Organizations funded a year
37 to 75
FY2018 to FY2024
States reached, FY2025
6
Total assets, FY2025
$152M

How open it is to new grantees

In FY2024, 76% of the organizations Sierra Club funded were first-time grantees, receiving 81% of its grant dollars.

New vs renewed · share of each year

In FY2024, 19% of grant dollars renewed an existing relationship; $499k went to new ones.

50%100%’18’19’20’21’22’23’24
RenewedFirst-time

Where new relationships form · theme of each grantee’s first grant

’18’19’20’21’22’23’24
EnvironmentCommunity ImprovementHuman ServicesCivil RightsEducationPublic BenefitOther
How this is measured
First-time means a grantee’s first year in the filing window; renewed means funded in an earlier year too. The renewed share climbs naturally as a portfolio matures, so the signal is a year that bucks it (a wave of new grantees). The earliest year is left-censored: relationships that predate the data read as new. Theme is the grantee’s IRS cause.
The numbers by year
Fiscal yearOrganizations fundedTo those organizationsFirst-time grantees
FY2025still arriving7$239k71%
FY202437$616k76%
FY202345$669k64%
FY202249$917k67%
FY202152$754k67%
FY202053$1.7M66%
FY201959$964k64%
FY201875$1.9M80%
100% classified

What it funded, over time

Every grant placed by its stated purpose and the recipient’s mission, by year, FY2017 to 2025.

Environment$8.7MHousing & Shelter$53kInternational$41kCivil Rights$28kPublic Safety & Disaster$24kAnimals$15kRecreation & Sports$10k

Where its grants go

Grant dollars by states, across the years we hold.

Which US states its grants reach

AK
VT
WA
ID
MT
MN
IL
WI
MI
NY
MA
OR
WY
SD
IN
PA
NJ
CT
RI
CA
UT
CO
NE
MO
KY
WV
VA
MD
AZ
NM
KS
AR
NC
SC
DC
HI
LA
MS
AL
GA
TX
FL

Top grantees

Largest recipients by total granted, FY2017 to FY2025, and the share of each one’s budget the grants supplied at peak.

GranteeTotal grantedYearsShare of their budget
Center for American Progress Action Fund$1,000,00014%
Centro Para la Conservacion del Paisaje$231,4004n/a
Rise to Thrive$225,0001n/a
Grassroots International Inc$200,00012%
GreenLatinos$135,50074%
Coalicion Pro Corredor Ecologico Del Noreste Inc$132,4004n/a
Earth Island Institute Inc$130,99940%
Iniciativa Ecodes Bahia Jobos$110,0002n/a
Texas Conservation Alliance$100,00019%
Womens March Inc$100,0001n/a
Show all 318 grantees
All grantees of Sierra Club by total granted
GranteeTotal grantedYearsShare of their budget
Center for American Progress Action Fund$1,000,00014%
Centro Para la Conservacion del Paisaje$231,4004n/a
Rise to Thrive$225,0001n/a
Grassroots International Inc$200,00012%
GreenLatinos$135,50074%
Coalicion Pro Corredor Ecologico Del Noreste Inc$132,4004n/a
Earth Island Institute Inc$130,99940%
Iniciativa Ecodes Bahia Jobos$110,0002n/a
Texas Conservation Alliance$100,00019%
Womens March Inc$100,0001n/a
Rainforest Action Network$84,00060%
The Student Conservation Association Inc$82,69630%
Mn350$78,00052%
Southern Sector Rising$76,765124%
Indigenous Environmental Network$76,09960%
Puerto Rico Al Sur$75,0001n/a
West Marion Inc$72,50025%
Aprodec Inc$70,0002n/a
Amaneser 2025$70,0001n/a
Dine Citizens Against Ruining Our Environment$69,50048%
Community Initiatives$68,65040%
Sierra Nevada Alliance$66,00033%
El Puente de Williamsburg Inc$65,00021%
Movement Strategy Center$65,00020%
West Virginia Citizen Action Group$63,000124%
Social and Environmental Entrepreneurs (See) Inc$62,50030%
Natural Resources Defense Council Inc$61,00020%
Pampanos Verdes$60,0002n/a
West Harlem Environmental Action Inc$56,00040%
Bold Education Fund Inc$55,60025%
Gwichin Steering Committee$55,000310%
University of Utah$53,7803n/a
New Alpha Community Development Corporation$51,1003n/a
Consejo Integral Comunitario de Barriada Morales Inc$51,0001n/a
Greenfaith Inc$50,47823%
Jesus People Against Pollution$50,0001n/a
Center for Voter Information$50,00010%
Renewable Energy Wildlife Institute$50,00031%
Noto2org$50,0001n/a
The Rose Foundation for Communities the Environment$47,63310%
West Virginia Environmental Council$46,000316%
Lawyers' Committee for Civil Rights Under Law$44,90020%
House of Conservation & Energy$44,0001n/a
Healthy Gulf$44,00021%
Voices for a Sustainable Future$42,50035%
Progressnow Colorado$42,00036%
US Human Rights Network$41,0001n/a
Hip Hop Caucus Education Fund$40,00025%
Bold Alliance Inc$40,000110%
Global Warming Express$39,852388%
Micah Six Eight Mission$39,50026%
Earthworks$37,00030%
Outward Bound Adventures$36,50028%
Oregon Natural Resources Council Fund Oregon Wild$36,00021%
Rocky Mountain Institute$36,00020%
Columbia River Bioregional Education Project$35,600139%
Rebuilding Together Pittsburgh$35,02911%
South River Watershed Alliance$35,000114%
Chesapeake Climate Action Network Action Fund Inc$35,00012%
Verde Inc$35,00010%
The Partnership Project Inc$35,00030%
Mountain Watershed Association Inc$32,67123%
Carrizo Comecrudo Nation of Texas Inc$32,50024%
Isaac W Bernheim Foundation$32,40030%
Women's Environment and Development Organization$32,33121%
Kcc-The Kentucky Conservation Committee Inc$30,05048%
Women's Voices for the Earth$30,00022%
Cambio Pr Inc$30,000111%
Virginia Organizing Inc$30,00010%
Native Movement$30,00022%
Latino Victory Project$30,00021%
Alaska Wilderness League$30,00020%
Black to the Land Coalition$30,000150%
Breath Is Lyfe$30,0002n/a
League of Conservation Voters Inc$30,00010%
Clean Air Clean Energy Washington$30,0001n/a
Urban Ecology Center Inc$30,00010%
Moveonorg Civic Action$30,0001n/a
Arkansas Advanced Energy Association Inc$28,0001n/a
ACLU Foundation of Texas Inc$27,50020%
Kentucky Resources Council Inc$26,30032%
YMCA of Metropolitan Detroit$25,70020%
Stewardship Utah Foundation$25,49910%
Vets in the Valley Foundation$25,2592n/a
Harambee House Inc$25,050215%
Hip Hop for Change Inc$25,00023%
The Regeneration Project$25,00012%
Hoosier Interfaith Power & Light Inc$25,0002n/a
HASER Inc$25,0001n/a
League of Oil & Gas Impacted Coloradans$24,50024%
Rotary Reach Foundation Inc$24,3291n/a
Pathos Labs$24,00018%
The Good Energy Project Inc$24,00012%
West Virginia Citizen Action Education Fund$24,00011%
Utah Dine Bikeyah$24,00013%
Keep Growing Detroit$23,20013%
Faith in Place$22,50020%
Physicians for Social Responsibility$22,50012%
Group for the East End Inc$22,00012%
Creative Thought and Action$21,0001n/a
Green Building United$21,00013%
Environmentally Concerned Citizens of South Central Michigan$20,6101n/a
MoveOnorg Civic Action$20,00010%
Archcity Defenders$20,00010%
International Wildlife Refuge Alliance$20,00022%
Texas Campaign for the Environment Fund$20,00011%
Coalition of Black Trade Unionists$20,00012%
Santa Barbara County Trails Council$20,0001n/a
Michigan Disability Rights Coalition$20,00011%
Mobile Baykeeper Inc$20,00012%
Coalition of Communities of Color$20,00011%
West Atlanta Watershed Alliance$20,00014%
Florida Rising Together Inc$20,00010%
Kentuckians for the Commonwealth Inc$20,00012%
Committee to Protect New Mexico Consumers$20,00012%
United We Dream Network Inc$20,00010%
Green 20$20,00021%
Sophie Gerson Healthy Youth Inc$19,50023%
Adelphi University$19,20010%
J Gordon Community Development Corporation$19,2003n/a
People's Justice Council$18,500112%
Malama Learning Center$18,22621%
Scholastic Inc$17,0752n/a
Home Energy Efficiency Team Inc$17,0001n/a
Outdoor Afro$17,00020%
Sinergia Los Naranjos Inc$16,8401n/a
To Nizhoni Ani$16,50029%
Farmworker Association of Florida Inc$16,00011%
Save Our Illinois Land$15,300110%
Wv Environmental Council$15,0002n/a
Conservation Colorado Education Fund$15,00010%
Asian Americans Advancing Justice Southern California$15,00010%
US Climate Action Network$15,00011%
Earthjustice Action$15,00011%
Western States Center$15,0001n/a
East Michigan Environmental Action Council Inc$15,00014%
Guardian Revival Inc$15,00011%
Operation Better Block Inc$15,00011%
CalCef Innovations$15,00011%
Yes for Portland Clean Energy Fund$15,00014%
DRUM Desis Rising Up and Moving Inc$15,00011%
East Yard Communities for Environmental Justice$15,00011%
Hoosier Environmental Council Inc$15,00011%
Right to the City Alliance$15,00010%
Se Si Le$15,000111%
Lewis & Clark College$15,00010%
Faith in Place Action Fund$15,0001n/a
The Bus for Outdoor Access and Teaching$15,00027%
Alaska Wilderness League Action$15,00012%
Port Authority Pba Inc$15,00010%
Clean Up the River Environment$15,00014%
Emerald Cities Collaborative Inc$15,00010%
We Act$15,0001n/a
Coming Clean Inc$15,00011%
Deep South Center for Environmental$15,00011%
Conservation Voters of Pennsylvania$15,00012%
All Our Energy Inc$14,900136%
Pennsylvania Bat Rescue Inc$14,62518%
Allegheny Land Trust$14,40710%
Merrill W Linn Land & Waterways Conservancy$14,38612%
Three Rivers Waterkeeper$14,13812%
Mobile Environmental Justice Action Coalition$14,0001n/a
Sequoia Forestkeeper$13,000152%
Person County Community Action Network$13,000148%
Communities for a Better Environment$13,00010%
Alaska's Healing Hearts$13,00018%
Evolveky$12,983128%
No on Measure C 2022$12,5001n/a
Re-Volv$12,00011%
Michigan Enviromental Council$12,00011%
Paradise Ridge Defense Coalition$12,0001n/a
Rapid Creek Watershed Action$12,0001n/a
Nature Coast Conservation$12,0001n/a
Shamokin Creek Restoration Alliance$11,93214%
Grid Alternatives Greater Los Angeles Inc$11,6351n/a
Pennsylvania Firefly Festival Inc$11,2001n/a
Environment Council of Rhode Island Education Fund$11,00012%
Citizens for a Healthy Jessup$10,9861n/a
Center for Coalfield Justice$10,96017%
Power Shift Network$10,7951n/a
Eastern Woodland Lacross$10,40012%
Pennsylvania Conservative Energy Forum$10,00013%
Housing Development Consortium of Seattle - King County$10,00011%
National Housing Trust$10,00010%
Missouri Organizing and Voter Engagement Action$10,00011%
Virginia Interfaith Center For Public Policy$10,00011%
Louisiana Bucket Brigade$10,00010%
East Side Riders Bike Club$10,0001n/a
Congregations Caring for Creation$10,0001n/a
Children of the Setting Sun Product$10,00011%
Friends of Auwahi Forest Restoration Project$10,00012%
Shiloh Community Center$10,0001n/a
Honor the Earth$10,00010%
Los Padres Forest Association$10,00013%
Eastie Farm Inc$10,00010%
Nature Track Foundation Inc$10,0001n/a
The Wildlands Conservancy$10,00010%
Kentucky Association for Environmental Education$10,00011%
Port Arthur Community Action Network$10,0001n/a
Save Our Forest Association Inc$10,0001n/a
Molokai Land Trust$10,00011%
Center for Earth Energy and Democracy$10,00012%
Puget Sound Sage$10,00011%
Tri-City Community Development Corporation$10,00013%
Urban Tilth$10,00011%
Delta Wind Birds$10,00015%
The Aspen Institute Inc$10,00010%
Mi Familia En Accion$10,00010%
Causa Justa Just Cause$10,00010%
BlueGreen Alliance Inc$10,00011%
Programa de Educacion Comunal de Entrega y Servicio Inc$10,0001n/a
The Young Men's Christian Association of Florida's First Coast Inc$10,00010%
Texas Afl-Cio$10,0001n/a
Young Men's Christian Association of Greater San Antonio$10,00010%
Pandos$10,0001n/a
The Sanders Institute$10,00012%
Rocky Mountain Wolf Action Fund$10,00011%
Young Men's Christian Association of Greater Indianapolis$10,00010%
Kiss the Ground$10,00010%
Community Health Council of Wyandotte County Inc$10,00010%
The Marina Foundation$10,000110%
Native American Educational Technologies Inc$10,0001n/a
Protectores de Cuencas Inc$10,0001n/a
Ecologic$10,0001n/a
Southwest Pennsylvania Environmental Health Projct$10,0001n/a
Idaho Conservation League Inc$10,00010%
Powder River Basin Resource Council$10,00012%
Dreamorg$10,00010%
New Voices Pittsburgh Inc$10,00011%
350 Wisconsin Inc$10,000116%
Sacramento Area Congregations Together$10,00012%
Public Citizen Inc$10,00010%
National Council of YMCAs of the USA$10,00010%
Ecosol$10,0001n/a
Mississippi Sierra Club PAC$10,0001n/a
California Indian Environmental Alliance$10,00011%
Society of Native Nations$10,0001n/a
Everyones Harvest$10,00011%
Grassroots Global Justice$10,00010%
North Bay Organizing Project$10,00010%
Sweet Jane Productions Inc$10,0001n/a
The Solar Foundation$10,00010%
Kentucky Heartwood Inc$10,00014%
Groundwork Northeast Revitalization$10,00011%
Center on Race Poverty & the Environment$10,00010%
American Indian Council of Mariposa County$10,00011%
MERITO Foundation Inc FKA MutliCultural Education for Reso$10,00015%
Urban Impact Lab$9,9551n/a
Friends of Rouge Park$9,6001n/a
Concerned Citizens of Charles City County$9,50018%
Bridging The Gap In Virginia$9,5001n/a
Woodrow Wilson International Center for Scholars$9,50010%
Mid-Atlantic Karst Conservancy$9,28619%
Hofstra University$9,00010%
Alkebu-Lan Village$9,00012%
FLIPP Inc$9,00017%
Nature for All$8,50011%
Environmental Center of San Diego$8,500112%
Center for Community Action$8,5001n/a
West End Civic Association Inc$8,25014%
Minnesota Council of Churches$8,0101n/a
Progreso Latino$8,00010%
University of Maryland College Park$8,0001n/a
Illinois Peoples Action$8,00015%
Endangered Habitats League$8,00011%
Center for Community Action and Environmental Justice$8,00010%
Organizing Neighborhood Equity$8,00011%
Feria Calle Inc$8,0001n/a
Friends of Stone Lakes National Wildlife$8,000112%
Central Coast Alliance United for a Sustainable Economy$8,00010%
University of Maryland College Park Foundation Inc$8,00010%
Alternatives for Community and Environment Inc$7,65011%
The Sundari Foundation Inc$7,50010%
Bear Creek Council$7,50016%
Peri Support Fund Inc$7,50011%
Takeaction Mn Education Fund$7,50010%
The Biophilia Foundation Inc$7,50011%
Fair Shake Environmental Legal Services$7,50011%
Black Women for Wellness$7,50010%
Occidental Arts and Ecology Center$7,50010%
Nw Energy Coalition$7,50011%
Soul Trak Outdoors$7,50013%
Edward Waters University Inc$7,50010%
Community Partners$7,50010%
Micronesia Climate Change Alliance Inc$7,10015%
Division of Homeland Ministry$7,0201n/a
Polaris Institute USA$7,00011%
John Muir Land Trust prev Muir Heritage Land Trust$7,00010%
Fideicomiso del Bosque Modelo$7,0001n/a
PLUS Fund Paid Leave for the United States$7,0001n/a
Solar United Neighbors Inc$7,00010%
Great Lakes Ford$6,6301n/a
Pasadena Educational Foundation$6,50010%
Montana Environmental Information Center$6,40011%
Lawrence Community Food Alliance Inc$6,40012%
Keystone Trails Association$6,02911%
Wild Alabama Inc$6,00012%
Nature Forward$6,00010%
Alabama Rivers Alliance Inc$6,00012%
City of Brevard$6,0001n/a
College Visions$6,00011%
Conservation Nw$6,0001n/a
West Virginia Wilderness Coalition$6,0001n/a
West Virginia Rivers Coalition Inc$6,00011%
Congressional Hispanic Caucus Institute Inc$6,00010%
Clean Energy Economy for the Region$6,00011%
Fair Future Movement Inc$5,9481n/a
GEORGIA RIVER NETWORK INC dba GEORGIA RIVERS$5,86711%
The Descendants Project$5,75010%
Greenaction for Health and Environmental Justice$5,50011%
Outdoors Empowered Network$5,5001n/a
Physicians for Social Responsibility Pennsylvania$5,24211%
United Houma Nation Inc$5,20011%
Brightmoor Connection$5,1501n/a
Grounded Strategies$5,13811%
Illinois Environmental Council General Fund$5,12010%
1000 Friends of Florida Inc$5,1001n/a
Kentucky Solar Energy Society Inc$5,0501n/a

Plus 2 recipients with no EIN on record ($25k), not named here.

Where it is load-bearing

Sierra Club supplied at least a quarter of the budget for 7 of its grantees at some point. The chart plots its 200 largest grantees; load-bearing ones sit top left.

25%50%75%100%$100k$1.0M$10M$100Mgrantee revenue →↑ funder's share of their budgetCenter for American Progress Action Fund: $1,000,000 over 1y, 3.7% of budgetGrassroots International Inc: $200,000 over 1y, 2.4% of budgetGreenLatinos: $135,500 over 7y, 3.9% of budgetEarth Island Institute Inc: $130,999 over 4y, 0.3% of budgetTexas Conservation Alliance: $100,000 over 1y, 9.4% of budgetRainforest Action Network: $84,000 over 6y, 0.2% of budgetThe Student Conservation Association Inc: $82,696 over 3y, 0.1% of budgetMn350: $78,000 over 5y, 1.7% of budgetSouthern Sector Rising: $76,765 over 1y, 24% of budgetIndigenous Environmental Network: $76,099 over 6y, 0.2% of budgetWest Marion Inc: $72,500 over 2y, 5.0% of budgetDine Citizens Against Ruining Our Environment: $69,500 over 4y, 8.0% of budgetCommunity Initiatives: $68,650 over 4y, 0.1% of budgetSierra Nevada Alliance: $66,000 over 3y, 2.5% of budgetEl Puente de Williamsburg Inc: $65,000 over 2y, 0.9% of budgetMovement Strategy Center: $65,000 over 2y, 0.2% of budgetWest Virginia Citizen Action Group: $63,000 over 1y, 24% of budgetSocial and Environmental Entrepreneurs (See) Inc: $62,500 over 3y, 0.1% of budgetNatural Resources Defense Council Inc: $61,000 over 2y, 0.0% of budgetWest Harlem Environmental Action Inc: $56,000 over 4y, 0.3% of budgetBold Education Fund Inc: $55,600 over 2y, 4.5% of budgetGwichin Steering Committee: $55,000 over 3y, 9.9% of budgetGreenfaith Inc: $50,478 over 2y, 2.5% of budgetCenter for Voter Information: $50,000 over 1y, 0.3% of budgetRenewable Energy Wildlife Institute: $50,000 over 3y, 0.6% of budgetThe Rose Foundation for Communities the Environment: $47,633 over 1y, 0.5% of budgetWest Virginia Environmental Council: $46,000 over 3y, 16% of budgetLawyers' Committee for Civil Rights Under Law: $44,900 over 2y, 0.1% of budgetHealthy Gulf: $44,000 over 2y, 1.1% of budgetVoices for a Sustainable Future: $42,500 over 3y, 4.5% of budgetProgressnow Colorado: $42,000 over 3y, 5.8% of budgetHip Hop Caucus Education Fund: $40,000 over 2y, 5.1% of budgetBold Alliance Inc: $40,000 over 1y, 9.6% of budgetGlobal Warming Express: $39,852 over 3y, 88% of budgetMicah Six Eight Mission: $39,500 over 2y, 6.2% of budgetEarthworks: $37,000 over 3y, 0.4% of budgetOutward Bound Adventures: $36,500 over 2y, 7.6% of budgetOregon Natural Resources Council Fund Oregon Wild: $36,000 over 2y, 1.5% of budgetRocky Mountain Institute: $36,000 over 2y, 0.1% of budgetColumbia River Bioregional Education Project: $35,600 over 1y, 39% of budgetRebuilding Together Pittsburgh: $35,029 over 1y, 0.6% of budgetSouth River Watershed Alliance: $35,000 over 1y, 14% of budgetChesapeake Climate Action Network Action Fund Inc: $35,000 over 1y, 1.8% of budgetVerde Inc: $35,000 over 1y, 0.5% of budgetThe Partnership Project Inc: $35,000 over 3y, 0.1% of budgetMountain Watershed Association Inc: $32,671 over 2y, 2.7% of budgetCarrizo Comecrudo Nation of Texas Inc: $32,500 over 2y, 3.8% of budgetIsaac W Bernheim Foundation: $32,400 over 3y, 0.2% of budget

Tap a dot to name the grantee.

How this is measured
Share of budget is the funder’s grant in a year over the grantee’s total revenue that year, at its highest across the years we hold; revenue is from all sources. Only grantees confirmed against their own filings, whose grants do not exceed their revenue, are plotted: the largest 200.

Nonprofits that may fit its grantmaking

Co-funders

Grantmakers whose grantees overlap with this funder’s far more than size alone predicts. Closer means stronger alignment; arcs show where they also fund each other. Here they form a tightly interlocked group: most of these funders back each other's grantees too.

United States Energy FoundationCA86.6× affinity59 shared granteesties to 11 of 11Hover any node to trace its alignments.Compare side by side →

Open a dossier: United States Energy Foundation · Patagoniaorg · Natural Resources Defense Council Inc · Windward Fund · Rockefeller Family Fund Inc · The Schmidt Family Foundation · Solutions Project Inc · Resources Legacy Fund · The Energy Foundation · Social and Environmental Entrepreneurs (See) Inc · Amalgamated Charitable Foundation Inc · The Partnership Project Inc

How this is measured
Affinity is a Gamma-Poisson posterior co-funding rate, re-centered on the typical rate, so thin evidence shrinks toward no signal. Overlap is association, not proof of shared intent.

Compare Sierra Club with peer funders

About Sierra Club

How much does Sierra Club give?
Sierra Club reported 7 itemized grants totaling $239,226, out of $285,875 in total grant expense reported on the return in its FY2025 IRS filing. It funded between 37 and 75 organizations a year over FY2018 to FY2024.
What does Sierra Club fund?
By grant dollars over FY2017 to FY2025, its largest causes are Environment (98%), Housing & Shelter (1%), International (0%).
Who are Sierra Club's largest grantees?
By total granted over FY2017 to FY2025: Center for American Progress Action Fund ($1.0M), Centro Para la Conservacion del Paisaje ($231k), Rise to Thrive ($225k).
Does Sierra Club fund new organizations?
In FY2024, 76% of the organizations it funded were first-time grantees.
Which funders back the same organizations as Sierra Club?
Its strongest co-funders, measured against what their size predicts, include United States Energy Foundation, Patagoniaorg, Natural Resources Defense Council Inc.
Where is Sierra Club based?
Sierra Club is based in CA.

On method. Every financial figure here is read from IRS e-file XML, the funder’s own 990/990-PF, and from the multi-year returns of the 327 grantees we resolved, each linked to its source. Grantee outcomes are each organization’s own program-service reporting (Form 990, Part III), read as association with funding, never as caused by it. Low-confidence name matches are suppressed rather than guessed. How we build these →

How this is measured
Each figure carries one of six labels. Filed is what the funder reported on its return. Official is another government record about an organization, such as a federal award or a charity register, joined by name where no shared identifier exists. Resolved is an identity we worked out where the filing named a recipient without an EIN, kept only above a measured confidence threshold. Computed is arithmetic over those, like themes, portfolio clusters and co-funder strength. Context is a statistic about a place rather than about an organization, which is what the need overlay is: it describes the area a grantee’s address sits in, not where its work lands. Inferred is drawn by a model from text, like the partnerships read out of public news and organization websites. Each is labeled where it appears.

Generated from the IRS Form 990 e-file return for fiscal year 2025, released 2025. Filings run roughly 12 to 24 months behind; figures are dated accordingly.

Source object · view filing

Play a game based on Sierra Club’s filings →

More from the funding graph