California · Nonprofit
SIERRA CLUB
SIERRA CLUB (California) receives grants from 444 organizations whose IRS filings report $20,623,883 to it, the largest being SIXTEEN THIRTY FUND ($6,993,333). 222 of them have funded it in more than one year.
- Revenue FY2025
- $84M
- Funders on record
- 444
- Grants received
- $21M
- Net assets
- $113M
What Sierra Club does
Mission
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.
As stated on its FY2025 Form 990.
Programs
Overview: throughout 2025, we continued progress toward the goals laid out in our 2030 strategic framework. We continue to apply an environmental justice lens to all the work we do to protect our lands, air, water, wildlife, and public health, and to tackle the climate crisis. Our climate work largely focuses on efforts to build a clean energy future that will result in safer air and water, good jobs, and more affordable energy prices for consumers. Grassroots strong: the heart of Sierra Club's enduring strength and unique effectiveness is our grassroots network of 64 chapters, state and local volunteer groups, outings leaders, members, and all of the Sierra Club supporters and partners. They are what set us apart as the powerful and uniquely effective organization we are. The authentic local relationships our chapter staff and volunteers continue to build in communities across the country are how we are growing our movement to protect our lands, air, and water, and tackle the climate and extinction crises. Beyond coal: in 2025, Sierra Club's beyond coal campaign advanced grid decarbonization and energy affordability. The campaign expanded advocacy in more than 30 states. The…
$40,307,662 spentof which $285,875 as grants$40,600 earned by the program59% of program spendingMembership, chapter and volunteer activities: support and funding of 64 volunteer-led chapters and approximately 446 groups, building a broad-based volunteer membership that helps advance the organization's environmental advocacy, public education, and community organizing to advance its social welfare mission. Local and states activities include public communication and education on climate, environmental, and conservation issues; raising awareness about city, county, and state policies; mobilizing members and supporters to take action on local and state advocacy initiatives; and hosting community events.
$13,731,592 spent20% of program spendingInformation and education: calendar & other merchandise, sierra (the organization's magazine), communications group includes print and non-print media activities and digital strategies (mission is to align the online activities and technological investments with its broader goals of environmental education, advocacy, and public engagement).sierra magazine: published 4 issues per year with an average print run in excess of 355,000 magazines, educating readers on environmental stewardship, responsible use of natural resources, and opportunities for civic action.calendar & other merchandise: offered Sierra Club branded merchandise about nature or the environment for sale directly to the public and other resellers, supporting the organization's educational and advocacy programs.
$9,333,906 spent$823,771 earned by the program14% of program spendingOutdoor activities:in 2025, Sierra Club outings offered impactful outdoor experiences that connected people to nature while advancing environmental education and bringing members to the organization's larger conservation campaigns. Through local chapters, groups, and sections, as well as the national outings program and campaign-specific outings, tens of thousands of participants were engaged in ways that deepened their understanding of environmental issues. The inspiring connections outdoors (ico) program, for example, ran 226 trips for 4,265 youth and adults - primarily from underserved communities - providing hands-on environmental education about ecosystems, conservation issues, and the role of public lands in climate resilience. The national outings program offered 78 domestic and 34 international trips to 1,274 participants, integrating learning about local flora, fauna, geology, and conservation history, often incorporating volunteer work like trail restoration to build awareness of how environmental stewardship aligns with Sierra Club campaigns. Local chapters and groups organized approximately 4,769 outings with 21,000 participants, ranging from nature hikes to advocacy…
$5,240,664 spent$5,057,900 earned by the program8% of program spending
The 4 programs described on its FY2025 Form 990, listed largest first by expense. Program spending in total: $68,613,824.
The organization over time
Each line starts at 100 in 2017, so what you read is the shape rather than the size: 150 means half as much again as 2017, 50 means half. The number beside each label in the key is where it ended.
Balance sheet
Total assets and total liabilities at each year end, in dollars. The largest one-year move in total assets was 2020 to 2021, from $130M to $144M (+11%).
How it's funded, over time
Each bar is one year's revenue split into where it came from, and every bar is the same height — these are shares, not amounts, so a year that raised twice as much looks the same size. Hover a bar for the split.
Surplus & reserves
Operating surplus or deficit each year, and months of liquidity in hand. 4 of the last 9 reported years ran a deficit.
reserve
Leadership and staff
The officers, directors, trustees and key employees listed on each return. Joined and no longer listed compare each filing with the year before, matching people by surname and first initial; a year after a gap, or a roster under three people, has no comparison.
Chief executive
Ben Jealous
Executive director
As listed on its FY2025 Form 990.
The chief executive listed changed between the FY2022 and FY2023 filings.
Who funds it, year by year
2017 → 2023: the base broadened from 104 funders to 127 funders, grant income rose $776k → $2.8M.
4 of 444 of your funders are donor-advised or pass-through sponsors (tagged DAF) — 34% of grant dollars received. That money is really individual donors directing a sponsor; the institutions to cultivate are the non-DAF funders.
Left out of every figure on this page: $695M from one payer (the payer shares this organization's board, largest Sierra Club Foundation). These are real filings, and they are not money SIERRA CLUB raised.
From the IRS filings of SIERRA CLUB’s funders (the co-funder graph). Top 30 of 444 funders by total. Association, not causation. Trends are read to FY2023, the last fiscal year that has finished arriving. FY2024–FY2026 are still being filed and are shown unshaded; they do not move any figure on this page.
How concentrated its funding is
SIERRA CLUB has a broad base — no single funder exceeds 34% of grant income, and it takes 4 funders to reach half.
the vertical line marks half of all grant income — 4 funders to its left
79% of the income these shares are computed over arrives through pass-through sponsors or from payers whose filings do not say what kind of payment it is. Concentration is still measured over all of it, because the money is real; what it does not support is a claim about how many institutions have chosen to fund SIERRA CLUB.
Largest funder’s share by year: 2017 19% · 2018 55% · 2019 29% · 2020 37% · 2021 18% · 2022 43% · 2023 52% — growing more concentrated.
“Effective funders” = inverse Herfindahl index (1 / Σ shareᵢ²) — the number of equal-sized funders that would give the same concentration. Trends are read to FY2023, the last fiscal year that has finished arriving. FY2024–FY2026 are still being filed and are shown unshaded; they do not move any figure on this page.
How long its funders stay
30% of SIERRA CLUB's funders are still giving 3 years after their first grant; 50% give in more than one year at all.
Share of funders still giving k years after their first recorded grant, pooled across every acquisition cohort. A funder counts as retained in a year only if it made a grant that year. Measured to FY2023, the last fiscal year that has finished arriving — a funder cannot be counted as lapsed in a year most filers have not reached.
Where its funders are
SIERRA CLUB draws 58% of its grant income from funders outside California, across 41 states in all.
In-state vs out-of-state, by year
Funder states come from each funder’s own filing. $7.0M arriving through sponsors registered in 3 states is excluded from the map and the split above: a sponsor holds money on a donor’s behalf, so its registered address would place those dollars somewhere no donor need ever have been. Trends are read to FY2023, the last fiscal year that has finished arriving. FY2024–FY2026 are still being filed and are shown unshaded; they do not move any figure on this page.
Organizations like SIERRA CLUB
Organizations whose mission and program text most resemble this one, by semantic similarity over every organization in the US filings — the closest peers, and often the clearest route to shared or prospective funders.
In California
Nationally
Read directly from this organization’s own Form 990, as neutral context.
Where the money goes
81% of spending goes to programs.
Governance
Footprint & structure
Files a return copy in 29 states
Part of a family of 48 related entities
- The Sierra Club Voter Education Fund · exempt
- Sierra Club Independent Action · exempt
- Sierra Club Political Committee · exempt
- Sierra Club Nevada PAC · exempt
- Sierra Club Independent Georgia PAC · exempt
Screen this organization
A dated, signed PDF of the compliance screen for SIERRA CLUB: IRS status (Business Master File, Publication 78, auto-revocation), the OFAC sanctions lists, the Internal Revenue Bulletin, and California registration, with the Rev. Proc. 2018-32 §8.01 reliance elements stated element by element. Generated from the current files at the moment you download it.
Screens are triage, not determinations; a source that cannot be read reports not screened, never clear. Screen this nonprofit · How the screen works · on the API as GET /api/screening/{ein}?format=pdf
Questions and answers
- Who funds SIERRA CLUB?
- SIERRA CLUB (California) receives grants from 444 organizations whose IRS filings report $20,623,883 to it, the largest being SIXTEEN THIRTY FUND ($6,993,333). 222 of them have funded it in more than one year.
- How many funders does SIERRA CLUB have?
- IRS filings report 444 organizations giving $20,623,883 in grants to SIERRA CLUB, 222 of which have funded it in more than one year.
- Who is the largest funder of SIERRA CLUB?
- SIXTEEN THIRTY FUND is the largest funder on record, with $6,993,333 in grants. The full list of funders is on this page.
- How can an organization like SIERRA CLUB find more funders?
- Start with the funders already giving here, then look at the foundations that back similar organizations in California. The funding by cause and by state pages list the largest funders for a given area and how to approach them.
These figures are read directly from IRS Form 990 / 990-PF e-file XML: this organization’s own return for FY2025 (financials across 2017–2025), and the filings of 444 funders that report grants to it. “On record” means captured in the filings we have parsed — a funder that does not e-file, or whose grant detail is not itemized, will not appear. Filings run roughly 12–24 months behind. Trends on this page end at FY2023, the last fiscal year that has finished arriving; later years are shown and marked, and move no figure. Data on this page was exported October 22, 2026. What this page cannot tell you · view filing