· Public charity
Sierra Club Foundation
See schedule o.the SIERRA CLUB FOUNDATION promotes efforts to educate and empower people to protect and improve the natural and human environment.goals: - solve the climate crisis primarily through a successful transition to a resource-efficient clean energy economy that better serves people and nature;- secure protections for public…
What you funded, over time
Every grant placed by its stated purpose and the recipient’s mission, by year — across FY2017–2025.
Where the money goes
Your grants by size, and where they go.
By grant size · FY2025
- Under $10k1 grant · $6k
- $10k–50k5 grants · $120k
- $50k–250k5 grants · $448k
- $250k+1 grant · $44M
| Recipient | Amount |
|---|---|
| SIERRA CLUB | $43,795,738 |
| JEWISH FEDERATION OF METROPOLITAN CHICAGO | $247,904 |
| ATMOS LTD | $50,000 |
| WEST VIRGINIA CITIZEN ACTION EDUCATION FUND | $50,000 |
| FOR A BETTER BAYOU | $50,000 |
| CENTER FOR PROGRESSIVE REFORM | $50,000 |
| CONFLUENCE PHILANTHROPY | $30,000 |
| THE ASPEN INSTITUTE | $25,000 |
| BLUE SKY INSTITUTE | $25,000 |
| TRIBAL LINK FOUNDATION | $20,000 |
| THE CRANE INSTITUTE OF SUSTAINABILITY | $20,000 |
| AUDUBON SOCIETY OF NEW YORK STATE | $6,250 |
Do your dollars go where the need is?
Each grant placed by the hardship in its grantee’s ZIP, then read against the area’s typical level.
Your human-services grants (FY23–25, $50k) land where the poverty rate runs at 15%, against an area that typically sits at 10%. 100% of those dollars go to grantees based in above-average-need neighborhoods. Most of your grants land in higher-need ZIPs.
Matched: human-services grants are those whose grantee’s IRS cause code is Human Services. Placed by people below the poverty linein the grantee’s ZIP, averaged from the tracts in that ZIP; grantee ZIP can differ from where services are delivered.
Which US states your grants reach
US grants placed by each grantee’s ZIP, which can differ from where services are actually delivered. Need from public data — U.S. Census/ACS, CDC PLACES, Eviction Lab, USDA — shown as context about the area, never attributed to your giving.
Who you back again
Which organizations you funded more than once, and which you funded a single time. Each grantee is matched to its own filings.
And the relationships you keep tend to grow: grantees you re-up on have seen median revenue of +99% since the first grant, against +13% for the ones you funded once.
26 repeat relationships — 4 still active in FY2025, 22 since wound down; 7 grantees were first funded in FY2025 (too recent to call).
How the two cohorts compare
Organizations
Total granted
Median revenue growth · since first grant
Still filing today
New vs renewed · share of each year
In FY2025, 99% of grant dollars renewed an existing relationship; $270k went to new ones.
Where new relationships form · theme of each grantee’s first grant
First-time = a grantee’s first year in your filing window; renewed = funded in an earlier year too. As a portfolio matures the renewed share naturally climbs — once funded, an org stays “renewable” — so the signal is the years that buck it (a new-grantee intake wave). The earliest year is left-censored: relationships that predate the data read as “new.” Theme is the grantee’s IRS cause.
Backed again, and grew
- SASOCIAL AND ENVIRONMENTAL ENTREPRENEURS (SEE) INC4× · 2017–2023 · $760k · revenue +490%
The Partnership Project Inc3× · 2020–2023 · $650k · revenue +15%
COMMUNITY INITIATIVES3× · 2020–2024 · $620k · revenue +158%
Funded once
- PMPOPULATION MEDIA CENTER INCone grant, 2022 · $939k · revenue 0%
MOVEMENT STRATEGY CENTERone grant, 2018 · $320k · revenue -2%- SGSEVENTH GENERATION FUND FOR INDIGENOUS PEOPLES INCgraduatedone grant, 2018 · $250k · revenue +54%
Repeat = funded in two or more distinct years; growth and survival are read from each grantee’s own subsequent IRS filings.
The map has a center of gravity: the average direction from the rest of the sector toward the organizations the foundation funds — the shape of its giving. Scoring every nonprofit along that direction surfaces the ones that look most like the portfolio. These are the closest matchesthat aren’t grantees — a resemblance in what they say they do, not a recommendation.
The Climate Center is a climate and energy policy nonprofit working to rapidly reduce climate pollution at scale, starting in California.
Improving the transparency and scientific integrity of climate solutions through open data and tools.
To research and develop healthy climate solutions comprising global food security, ecosystem regeneration and carbon balance in seas and soils.
Partnership for Policy Integrity (PFPI) uses data-driven advocacy and litigation to fight for forests, communities and the climate.
To empower frontline communities to lead nature-based solutions that advance climate justice, ecosystem restoration, and resilient livelihoods through connecting locally-led initiatives to funding, markets, and technical support.
Our mission is to fight against fossil fuel executives and industries that have turned our communities into dumping grounds for toxic waste, poisoning our air, water, lan, and bodies. We organize to oppose giant oil refineries, dirty…
The union of concerned scientists puts rigorous, independent science into action, developing solutions and advocating for a healthy, safe, and just future.
To accelerate progress in interventions that harness Earths natural systems to stabilize the climate.
E3g is a leading international not-for-profit think tank specialising in climate diplomacy harnessing expertise in the politics and economics of climate change.
To establish and promote programs to protect the global climate, forests, wildlife and the natural environment, through research, advocacy, and investigation.
Climate catalyst sparks collective action to tackle the biggest climate challenges we face today: cutting emissions in heavy industries.
CRI is an international climate and human rights monitoring and advocacy organization dedicated to preventing climate change and human rights abuses.
For reference, the grantee most central to the portfolio’s shape is Social and Environmental Entrepreneurs (See) Inc and the most unlike its peers is Born Free Foundation. Resemblance is measured on each organization’s own IRS 990 mission text; it reflects how work is described, not its quality or impact.
For each theme you fund, this compares how the sector’s money is shifting with how your own giving is shifting.
Sector change and giving change are each shown relative to their own range, growing (right) or shrinking (left); both normalized, so inflation isn’t mistaken for growth.
Your grantees are a median of 24 years old; the field is 14. You back the established end — and your money leans older still.
The field is 24% startups (under 5 years old) — 3% of your grantees by number, and just 0% of your money.
The orgs you fund almost never close — 0.0% lost their exemption, against 14% of the field you don’t fund.
Age = years since IRS exemption (a founding proxy). “Closed” = auto-revocation for 3 years of non-filing — a floor on closure, not proof, and bigger established orgs lapse least. Association, not causation.
102 grantees tracked through their own filings, 2017–2025.
Each one resolved to its own IRS returns and tracked year by year — your grant beside their revenue from every source. Association, dated; never a causal claim.
Counted here: distinct organizations you funded across 2017–2025, not grant rows in a single year — so this will not match the grant count on the cover. 102 of the 105 grantees resolved in that span have returns of their own we could reconcile; the rest are funded organizations whose filings we could not track year by year.
Where your money sits — by cause, then by grantee
Each org by its size and your share of it — top-left is where you’re load-bearing
Go grantee by grantee — a decade per org, and how each moved after you funded them
A decade per grantee — revenue shaded, your grants as bars, all rows on one timeline.
- Who funds SIERRA CLUB ↗
- Who funds POPULATION MEDIA CENTER INC ↗
- Who funds SOCIAL AND ENVIRONMENTAL ENTREPRENEURS (SEE) INC ↗
- Who funds The Partnership Project Inc ↗
- Who funds COMMUNITY INITIATIVES ↗
- Who funds Rocky Mountain Institute ↗
- Who funds MOVEMENT STRATEGY CENTER ↗
- Who funds UNIVERSITY OF CALIFORNIA BERKELEY FOUNDATION ↗
- Who funds SEVENTH GENERATION FUND FOR INDIGENOUS PEOPLES INC ↗
- Who funds TIDES FOUNDATION ↗
- Who funds MICHIGAN ENVIROMENTAL COUNCIL ↗
- Who funds ROCKEFELLER PHILANTHROPY ADVISORS INC ↗
- Who funds JEWISH FEDERATION OF METROPOLITAN CHICAGO ↗
- Who funds Latino Community Fund of Washington State ↗
- Who funds GreenLatinos ↗
- Who funds Solutions Project Inc ↗
- Who funds Environmental Health Coalition ↗
- Who funds GRASSROOTS INTERNATIONAL INC ↗
- Who funds RIGHT TO THE CITY ALLIANCE ↗
- Who funds Verde Inc ↗
- Who funds CONFLUENCE PHILANTHROPY INC ↗
- Who funds FLORIDA RISING TOGETHER INC ↗
- Who funds MINNESOTA CENTER FOR ENVIRONMENTAL ADVOCACY ↗
- Who funds Earth Island Institute Inc ↗
- Who funds Green 20 ↗
- Who funds NONPROFIT LEGAL SERVICES OF UTAH ↗
- Who funds CITIZEN ACTION OF WISCONSIN EDUCATION FUND INC ↗
- Who funds BlueGreen Alliance Foundation ↗
- Who funds VERMONT ENERGY INVESTMENT CORPORATION ↗
- Who funds SUSTAINABLE MARKETS FOUNDATION ↗
- Who funds CENTRO DE PERIODISMO INVESTIGATIVO INC ↗
- Who funds UNIVERSITY OF SOUTHERN CALIFORNIA ↗
- Who funds West Harlem Environmental Action Inc ↗
- Who funds Of Salt and Sand ↗
- Who funds Washington Interfaith Network ↗
- Who funds POWER SHIFT NETWORK ↗
- Who funds PROGRESSIVE LEADERSHIP ALLIANCE OF NEVADA ↗
- Who funds UNIVERSITY OF COLORADO FOUNDATION ↗
- Who funds Earthworks ↗
The grantmakers whose grantees overlap with yours far more than size alone predicts. Each orbits closer the stronger the alignment; the arcs between them show where they also fund each other. Here it reads as a tightly interlocked camp — most of these funders back each other's grantees too.
Open a dossier: Patagoniaorg · Sierra Club · United States Energy Foundation · Amalgamated Charitable Foundation Inc · Windward Fund · Natural Resources Defense Council Inc · The Schmidt Family Foundation · The Energy Foundation · Tides Center · Environmental Defense Fund Incorporated · Rockefeller Family Fund Inc · Tides Foundation
Affinity is a Gamma-Poisson posterior co-funding rate, re-centered on the typical rate, so thin evidence shrinks toward no signal. A research starting point: overlap is association, not proof of shared intent.
Government reliance of your grantees
Every dot is one organization Sierra Club Foundation funds. Left–right is the share of its income from government; up–down is the share from you. Bigger dots raise more. Filter to federal or a single department — and drag the year to watch it move.
- Vermont Energy Investment Corporation — 15% of income from government
- Verde Inc — 3% of income from government
Government income is each org’s traced federal awards (USASpending — grants and contracts) plus state payments (open checkbooks) as a share of its total revenue (IRS Form 990); the self-reported government-grant line (990 line 1e) is carried for cross-check: a grantee that reports government grants we could not trace to a source is left off the chart rather than shown as receiving none. An association, not a claim that your grant caused the public funding. Coverage is precision-first — a floor, not a census; state records exist for 9 states, so a grantee outside them shows no state figure (dimmed) rather than a false zero. Federal award amounts are obligations, which can span years, so a single-year share is indicative. 990 filings lag 12–24 months.