· Private foundation
Cs Fund
Its FY2025 filing reports that it funds preselected organizations and did not take unsolicited requests; check the foundation's own site before ruling it out.
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 $10k19 grants · $16k
- $10k–50k61 grants · $1.8M
- $50k–250k47 grants · $3.4M
- $250k+2 grants · $1.3M
| Recipient | Amount |
|---|---|
| TIDES FOUNDATION | $1,085,000 |
| FRIENDS OF ACTION GROUP ON EROSION TECHNOLOGY AND CONCENTRATION INC | $250,000 |
| GOVERNMENT ACCOUNTABILITY PROJECT | $150,000 |
| CENTER FOR CONSTITUTIONAL RIGHTS | $145,000 |
| TIDES CENTER | $145,000 |
| PARTNERSHIP FOR CIVIL JUSTICE FUND | $130,000 |
| GLOBAL GREENGRANTS FUND | $105,000 |
| PROJECT ON GOVERNMENT OVERSIGHT INC | $100,000 |
| SOCIAL AND ENVIRONMENTAL ENTREPRENEURS | $100,000 |
| SOLIDAIRE NETWORK | $100,000 |
| AMERICAN ECONOMIC LIBERTIES PROJECT | $100,000 |
| TIDES FOUNDATION | $100,000 |
| DEFENDING RIGHTS & DISSENT | $90,000 |
| PROTEUS FUND INC | $85,000 |
| CENTER FOR THE STUDY OF THE AMERICAS | $82,500 |
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 (FY19–25, $1.2M) land where the poverty rate runs at 12%, against an area that typically sits at 10%. 93% 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.
Where the work is directed
The same grants, placed two ways — where each recipient sits, and where its stated purpose earmarks the money.
About 31% of Cs Fund’s grant dollars are earmarked, by their stated purpose, for a different county than the recipient’s own address — money that lands at a nonprofit in one place but is meant to do its work in another.
Recipient view: each grant at its grantee’s ZIP, mapped to a county. Directed view: each grant at the county its stated purpose names, falling back to the recipient’s county when the purpose names no place; US grants only. A county shows only if it carries the top 95% of that view’s dollars. Purposes are read from the foundation’s own 990 grant descriptions.
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 +14% since the first grant, against 0% for the ones you funded once.
82 repeat relationships — 60 still active in FY2025, 22 since wound down; 31 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, 85% of grant dollars renewed an existing relationship; $694k 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
- FOFriends of Action Group on Erosion Technology and Concentration5× · 2019–2025 · $1.6M · revenue +108% · 47% of their budget
- CFCENTER FOR INTERNATIONAL ENVIRONMENTAL LAW INC6× · 2020–2025 · $665k · revenue +228%
- CFCenter for the study of the Americas5× · 2020–2025 · $605k · revenue +12% · 50% of their budget
Funded once
- GFGoodnation Foundation Incone grant, 2024 · $85k · revenue 0%
- IGIndividual grant recipientone grant, 2020 · $61k
- SCSIERRA CLUB FOUNDATIONone grant, 2021 · $60k · revenue -71%
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.
To protect the rainforest and advance the rights of Indigenous peoples in the Amazon Basin. We partner with Indigenous communities in campaigns for human rights, corporate accountability, and the preservation of the Amazon Basin's…
The Climate Center is a climate and energy policy nonprofit working to rapidly reduce climate pollution at scale, starting in California.
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.
The union of concerned scientists puts rigorous, independent science into action, developing solutions and advocating for a healthy, safe, and just future.
Partnership for Policy Integrity (PFPI) uses data-driven advocacy and litigation to fight for forests, communities and the climate.
Improving the transparency and scientific integrity of climate solutions through open data and tools.
A long-term, strategic alliance of labor, community, faith-based, and student organizations working together to build greater economic power for workers and community members through employee rights at work and access to good jobs,…
To research and develop healthy climate solutions comprising global food security, ecosystem regeneration and carbon balance in seas and soils.
To strenghten people's ability to guarantee their individual and collective right to a healthy environment, via the development, implementation, and effective enforcement of national and international law.
International Rivers protects rivers and defends the rights of communities that depend on them.
New Roots Institute is a nonprofit empowering the next generation with knowledge and training to end factory farming.
Educational & charitable. to provide legal and scientific information to public interest attorneys and scientists in numerous countries.
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 The Ceres Trust. 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) — 5% of your grantees by number, and just 2% 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.
145 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. 145 of the 169 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 MARIN COMMUNITY FOUNDATION ↗
- Who funds TIDES FOUNDATION ↗
- Who funds Friends of Action Group on Erosion Technology and Concentration ↗
- Who funds TIDES CENTER ↗
- Who funds CENTER FOR INTERNATIONAL ENVIRONMENTAL LAW INC ↗
- Who funds CENTER FOR CONSTITUTIONAL RIGHTS ↗
- Who funds Center for the study of the Americas ↗
- Who funds PROTEUS FUND INC ↗
- Who funds PARTNERSHIPFORCIVILJUSTICEFUND ↗
- Who funds GLOBAL GREENGRANTS FUND ↗
- Who funds PUBLIC CITIZEN FOUNDATION INC ↗
- Who funds Ecology Action of the Midpeninsula ↗
- Who funds PROJECT ON GOVERNMENT OVERSIGHT INC ↗
- Who funds INDIGENOUS ENVIRONMENTAL NETWORK ↗
- Who funds Solidaire Network Inc ↗
- Who funds AMERICAN ECONOMIC LIBERTIES PROJECT ↗
- Who funds FRIENDS OF THE EARTH ↗
- Who funds DEFENDING RIGHTS AND DISSENT INC ↗
- Who funds NEO Philanthropy Inc ↗
- Who funds Pesticide Action Network North America ↗
- Who funds Government Accountability Project ↗
- Who funds GLOBAL JUSTICE ECOLOGY PROJECT INC ↗
- Who funds Justice Funders ↗
- Who funds Center for Food Safety ↗
- Who funds INQUIRING SYSTEMS INC ↗
- Who funds INSTITUTE FOR FOOD AND DEVELOPMENT POLICY INC ↗
- Who funds NATIONAL SECURITY ARCHIVE FUND INC ↗
- Who funds WHYHUNGER INC ↗
- Who funds TRADE JUSTICE EDUCATION FUND ↗
- Who funds AMERICAN CONSTITUTION SOCIETY FOR LAW & POLICY ↗
- Who funds XERCES SOCIETY INC ↗
- Who funds CONSTITUTIONAL ACCOUNTABILITY CENTER ↗
- Who funds POSSIBILITY LABS ↗
- Who funds INTERNATIONAL CENTER FOR NOT-FOR-PROFIT LAW INC ↗
- Who funds SOUTH AFRICA DEVELOPMENT FUND INC ↗
- Who funds SOCIAL AND ENVIRONMENTAL ENTREPRENEURS (SEE) INC ↗
- Who funds PEOPLE'S PARITY PROJECT INC ↗
- Who funds CLIMATE JUSTICE ALLIANCE ↗
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: Warsh-Mott Legacy · The Schmidt Family Foundation · Amalgamated Charitable Foundation Inc · Rsf Social Finance Inc · Foundation to Promote Open Society · Marin Community Foundation · Common Counsel Foundation · The San Francisco Foundation · Tides Foundation · Wallace Global Fund II · Impactassetsinc · Rockefeller Philanthropy Advisors Inc
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 Cs Fund 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.
- Xerces Society Inc — 22% 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.
Warm introductions · Powered by PlinthPlus
How do I get to Cs Fund?
Find your warmest path to Cs Fund through trustees and officers whose names appear on both boards. Search for your organization and Plinth traces the shortest route it can evidence.
Each link is a name appearing on two organizations’ public IRS 990 filings, matched on that name and, where the filings support it, on location. A same-state match has geographic support, which is a second matching feature rather than confirmation that the two are one person; a cross-state one is the likeliest to be two people who share a name. Every hop shows its tier, low-confidence and distant paths are held back rather than guessed, and it is worth confirming the person before you use the introduction.