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Advocacy· Funding arm

Sierra Club Foundation

“Fund environmental education and litigation through the Sierra Club.”

Home groundOakland, CA
Founded1960
KindAdvocacy 501(c)(3)
Led byDan Chu

Give to them ↗Every way to help ↓

The work

What they do

501(c)(3) arm of Sierra Club. Funds litigation, education, and environmental programs. Major source of conservation legal funding.

Every year they sign one sentence and file it with the federal government: “EDUCATE AND EMPOWER PEOPLE TO PROTECT AND IMPROVE THE NATURAL AND HUMAN ENVIRONMENT.”

Where the money went, FY2025

The work, and what it cost

Bringing people into the fight

$19.2M

THE SIERRA CLUB FOUNDATION PROVIDES A BROAD RANGE OF ADDITIONAL GRANTS TO SUPPORT CHARITABLE, EDUCATION, SCIENTIFIC, LITERARY AND LEGAL ENDEAVORS THAT FURTHER ITS CHARITABLE MISSION.

Including $18,933,423 granted onward, most of it $43,795,738 to Sierra Club.

Read it as they filed it
THE SIERRA CLUB FOUNDATION PROVIDES A BROAD RANGE OF ADDITIONAL GRANTS TO SUPPORT CHARITABLE, EDUCATION, SCIENTIFIC, LITERARY AND LEGAL ENDEAVORS THAT FURTHER ITS CHARITABLE MISSION.

IRS Form 990 Part III, fiscal year 2025, signed under penalty of perjury.

Holding the line in court

$11.6M

THIS PROJECT SUPPORTS THE STATE AND LOCAL CHAPTERS AND GROUPS OF THE SIERRA CLUB IN THEIR WORK TO ADVANCE ALL OF THE SIERRA CLUB’S STRATEGIC FRAMEWORK GOALS THROUGH PUBLIC EDUCATION, ORGANIZING, ADMINISTRATIVE ADVOCACY,...

Including $11,621,706 granted onward.

Read it as they filed it
CHAPTER AND GROUP EDUCATION PROJECT - THIS PROJECT SUPPORTS THE STATE AND LOCAL CHAPTERS AND GROUPS OF THE SIERRA CLUB IN THEIR WORK TO ADVANCE ALL OF THE SIERRA CLUB'S STRATEGIC FRAMEWORK GOALS THROUGH PUBLIC EDUCATION, ORGANIZING, ADMINISTRATIVE ADVOCACY, COMMUNICATIONS, LITIGATION, AND OTHER CHARITABLE ACTIVITIES. THE SPECIFIC GOALS ARE TO ENABLE LOCAL GRASSROOTS ACTIVISTS ACROSS THE COUNTRY TO ACTIVELY ENGAGE IN THEIR OWN COMMUNITIES; DESIGN AND IMPLEMENT CONSERVATION CAMPAIGNS TO PROTECT THE NATURAL AND HUMAN ENVIRONMENT; INFORM THE PUBLIC AND MEMBERS AND SUPPORTERS ABOUT ENVIRONMENTAL ISSUES OF LOCAL INTEREST; ENGAGE IN PUBLIC INTEREST LAWSUITS; AND GROW A BROADER BASE OF VOLUNTEERS AND LEADERS CONTRIBUTING TO COMMUNITY-INSPIRED AND-LED PROGRAMMING, INCLUDING TO INCREASE OPPORTUNITIES FOR YOUTH, CHILDREN, AND FAMILIES TO DEVELOP AND ENHANCE PERSONAL CONNECTIONS TO NATURE.

IRS Form 990 Part III, fiscal year 2025, signed under penalty of perjury.

Reading every lease sale

$8.6M

THE LONG-TERM GOAL OF THIS PROGRAM IS TO REVERSE THE SOCIAL, ECONOMIC, AND ENVIRONMENTAL DAMAGE CAUSED BY GLOBAL CLIMATE CHANGE BY DECARBONIZING THE ELECTRIC GRID BY 80 PERCENT BY 2030.

Including $8,614,895 granted onward.

Read it as they filed it
BEYOND COAL - THE LONG-TERM GOAL OF THIS PROGRAM IS TO REVERSE THE SOCIAL, ECONOMIC, AND ENVIRONMENTAL DAMAGE CAUSED BY GLOBAL CLIMATE CHANGE BY DECARBONIZING THE ELECTRIC GRID BY 80 PERCENT BY 2030. THE PROGRAM'S SPECIFIC GOALS - WORKING IN PARTNERSHIP WITH ALLIED ORGANIZATIONS - ARE TO HELP TRANSITION AGING AND UNECONOMIC COAL PLANTS TOWARDS CLEANER ALTENATIVES THAT ALSO BENEFIT THE LOCAL COMMUNITY.

IRS Form 990 Part III, fiscal year 2025, signed under penalty of perjury.

Reading every lease sale

$5.2M

THIS PROJECT EDUCATES, ENGAGES, AND MOBILIZES THE PUBLIC IN ADMINISTRATIVE ADVOCACY ABOUT A RANGE OF ENVIRONMENTAL ISSUES TO ADVANCE THE SIERRA CLUB’S STRATEGIC FRAMEWORK; PROVIDES PROGRAM, OPERATIONS, AND MANAGEMENT SUP...

Including $5,212,368 granted onward.

Read it as they filed it
NATIONAL EDUCATION PROJECT - THIS PROJECT EDUCATES, ENGAGES, AND MOBILIZES THE PUBLIC IN ADMINISTRATIVE ADVOCACY ABOUT A RANGE OF ENVIRONMENTAL ISSUES TO ADVANCE THE SIERRA CLUB'S STRATEGIC FRAMEWORK; PROVIDES PROGRAM, OPERATIONS, AND MANAGEMENT SUPPORT TO IMPLEMENT THE CHARITABLE PROJECTS OF THE SIERRA CLUB; AND WORKS IN COALITION AND IN PARTNERSHIP WITH LOCAL COMMUNITIES AND GROUPS TO ADVANCE OUTCOMES AT THE INTERSECTION OF CLIMATE, SOCIAL, AND RACIAL JUSTICE. IT IS A PROJECT THROUGH WHICH THE SIERRA CLUB FOUNDATION WORKS TO ACHIEVE ITS MISSION TO EDUCATE AND EMPOWER PEOPLE TO PROTECT AND IMPROVE THE NATURAL AND HUMAN ENVIRONMENT.

IRS Form 990 Part III, fiscal year 2025, signed under penalty of perjury.

Follow the dollar

84 cents of every dollar goes to the work

84¢
84¢ the work3¢ keeping the lights on13¢ finding the next member

That ratio is a good sign, not a scorecard. Plenty of great groups run leaner and lumpier. What matters is the extremes, and Sierra Club Foundation is nowhere near one.

Backed on the record by Wilburforce Foundation, William & Flora Hewlett Foundation, Kendeda Fund and 7 others, latest filing FY24.

$44,619,601 programs, $1,681,754 management, $6,829,536 fundraising. Form 990, FY2025.

The people

Who does the work

0paid staff
20volunteers last year
14board members
66years on the ground
Robin MannBoard ChairVolunteer, 3 hrs a week, $0

Chairs the 14-member board.

Honesty note: leadership comes from each year’s federal filing, so it can run a year behind. Orgs that claim their page can update it same-day. Work at Sierra Club Foundation? Claim this page.

Those 20 volunteers are people who decided this ground was theirs to defend. If Sierra Club Foundation is fighting for your place too, the matchmaker will find your way in.

Make it 21

The filings

14 years of filings

14 years of filings

Total revenue by fiscal year, as filed. Point at the line for any year.

$25M$50M$75M$100M$125M$31.9M FY2520112025
Total revenue by fiscal year
YearRevenue
2011$47,163,599
2012$47,618,045
2013$58,503,816
2014$62,137,742
2015$90,844,476
2016$75,709,930
2017$71,524,157
2018$105,160,363
2019$120,488,815
2020$95,601,203
2021$108,646,694
2022$87,746,859
2023$89,068,739
2025$31,947,339

From $47.2M in 2011 to $31.9M in FY25, across 14 public filings.

Stand with Sierra Club Foundation

66 years on the ground, 20 volunteers, 84 cents of every dollar on the line. That is who is holding it. There is room for one more.

Sources and methodFinancials, headcounts, and program text: IRS Form 990, FY2025 and 13 prior filings via ProPublica Nonprofit Explorer, EIN 94-6069890. Leadership and compensation: Form 990 Part VII and the return’s signature block, FY2025 filing. Grantees: Schedule I, same filing. Funders: the funders’ own returns (Schedule I and 990-PF Part XV) via ProPublica, names and years only. Org-reported figures are always labeled. Data verified as of 2026-09-23. Nothing on this page is pay-to-play.