· Private foundation
The Peterffy Foundation Inc
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 $10k5 grants · $24k
- $10k–50k14 grants · $315k
- $50k–250k35 grants · $3.5M
- $250k+6 grants · $3.0M
| Recipient | Amount |
|---|---|
| QUIPA INC | $1,000,000 |
| ONE EARTH PHILANTHROPY | $620,000 |
| DRYLANDS ARGOECOLOGY RESEARCH FOUNDATION | $575,000 |
| KINDLE PROJECT | $325,000 |
| MOTHERS OF THE AMAZON | $265,000 |
| BIONEERS COLLECTIVE HERITAGE INSTITUTE | $250,000 |
| RECYCLE HAWAII | $200,000 |
| WILDERNESS WORKSHOP | $200,000 |
| CONSULTANTS FOR INDIAN PROGRESS | $200,000 |
| FRIENDS OF CONSERVATIO CARPATHIA IN THE UNITED STATES | $200,000 |
| EARTHJUSTICE | $200,000 |
| SKY'S THE LIMIT FUND | $200,000 |
| RAINCOAST CONSERVATION FOUNDATION | $150,000 |
| LA MAIDA PROJECT | $150,000 |
| OREGON NATURAL RESOURCES COUNCIL FUND | $120,000 |
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, $2.8M) land where the poverty rate runs at 11%, against an area that typically sits at 10%. 44% of those dollars go to grantees based in above-average-need neighborhoods. Your grants spread fairly evenly across need levels.
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 5% of The Peterffy Foundation Inc’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 +27% since the first grant, against +6% for the ones you funded once.
63 repeat relationships — 40 still active in FY2025, 23 since wound down; 14 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, 92% of grant dollars renewed an existing relationship; $544k 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
- LILand is Life Inc5× · 2019–2023 · $4.5M · revenue +44% · 48% of their budget
- CHCOLLECTIVE HERITAGE INSTITUTE8× · 2018–2025 · $2.4M · revenue +70% · 28% of their budget
- STSKY'S THE LIMIT FUND6× · 2020–2025 · $1.6M · revenue +50% · 39% of their budget
Funded once
- FAFAR AWAY PROJECTSone grant, 2020 · $500k · revenue +6% · 58% of their budget
- PFPUMAMAQUI FOUNDATIONone grant, 2023 · $400k
- SFSeaLegacy Foundation Incone grant, 2023 · $200k · revenue -46%
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.
Global Forest Generation restores and protects forest ecosystems in partnership with grassroots leaders and local communities across vast landscapes which play a critical role in preserving water, protecting biodiversity, storing carbon,…
The purpose of rainforest foundation us is to support indigenous peoples and forest communities in their efforts to secure their lands, protect their environment, and uphold their rights.
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 protect vital areas of our natural world for the benefit of wildlife, habitats, and people by inspiring collaborative action. Our vision is a world where wildlife and people flourish in healthy ecosystems that sustain us…
Nature and culture international conserves biologically diverse landscapes in latin america, in concert with local cultures, for the well-being of the planet.
Natura International conserves rainforests and other key natural ecosystems and the endangered species they contain through creation of protected areas in collaboration with local governments and communities in Latin America. In this way…
We are scientists and engineers, humanists and designers. Coming together across disciplinary and cultural boundaries, we form focused teams to discover and co-create pathways to social and ecological regeneration.
The Natura Bolivia Foundation is dedicated to implementing, and evaluating the impact of conservation and development programs, with a focus on watershed conservation, protected areas, and incentive based conservation in Bolivia. We work…
Rainforest Action Network (RAN) works toward a world where the rights and dignity of all communities are respected and where healthy forests, a stable climate and wild biodiversity are protected and celebrated.
Nia tero works alongside indigenous peoples to secure their guardianship of vital ecosystems. indigenous peoples are guardians of earth.(see schedule o)
To offer the dignity of fair employment to people living in impoverished communities, who become transformational agents of global forest restoration.
Rainforest trust saves endangered wildlife and protects our planet by creating rainforest reserves through partnerships, community engagement, and donor support.
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 Womenserve. 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 13 years old; the field is 16. You back the younger end — and your money leans older still.
The field is 22% startups (under 5 years old) — 14% of your grantees by number, and just 18% of your money.
The orgs you fund almost never close — 1% lost their exemption, against 13% 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.
123 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. 123 of the 183 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 Land is Life Inc ↗
- Who funds QUIPA INC ↗
- Who funds COLLECTIVE HERITAGE INSTITUTE ↗
- Who funds ONE EARTH PHILANTHROPY ↗
- Who funds SKY'S THE LIMIT FUND ↗
- Who funds Drylands Agroecology Research Foundation ↗
- Who funds FRANKFURT ZOOLOGICAL SOCIETY - US INC ↗
- Who funds WILDERNESS WORKSHOP ↗
- Who funds MOTHERS OF THE AMAZON ↗
- Who funds RECYCLE HAWAII ↗
- Who funds STAND ↗
- Who funds Oregon Natural Resources Council Fund Oregon Wild ↗
- Who funds GREENWAVE ORGANIZATION CORP ↗
- Who funds SEVENTH GENERATION FUND FOR INDIGENOUS PEOPLES INC ↗
- Who funds EKVNV YEFOLECVLKE ↗
- Who funds KINDLE PROJECT ↗
- Who funds COMMON COUNSEL FOUNDATION ↗
- Who funds REGENERATIVE EARTH ↗
- Who funds TIDES FOUNDATION ↗
- Who funds Women's Earth and Climate Action Network ↗
- Who funds FAR AWAY PROJECTS ↗
- Who funds THE WILDERNESS SOCIETY ↗
- Who funds LA MAIDA PROJECT ↗
- Who funds SEEDS OF WISDOM INC ↗
- Who funds RAINCOAST CONSERVATION FOUNDATION ↗
- Who funds Buckminster Fuller Institute ↗
- Who funds HONOR THE EARTH ↗
- Who funds Peace Development Fund ↗
- Who funds EARTHWAYS FOUNDATION INC ↗
- Who funds Amalgamated Charitable Foundation Inc ↗
- Who funds Amazon Watch Inc ↗
- Who funds SOUTHERN ENVIRONMENTAL LAW CENTER ↗
- Who funds SeaLegacy Foundation Inc ↗
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: Rsf Social Finance Inc · Patagoniaorg · Impactassetsinc · The Schmidt Family Foundation · Common Counsel Foundation · Novo Foundation · Rockefeller Philanthropy Advisors Inc · Tides Foundation · Amalgamated Charitable Foundation Inc · Proteus Fund Inc · Wend II Inc · The David and Lucile Packard 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 The Peterffy Foundation Inc 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.
- Presencing Institute Inc — 28% of income from government
- See Turtles — 11% of income from government
- Oregon Natural Resources Council Fund Oregon Wild — 2% 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 The Peterffy Foundation Inc?
Find your warmest path to The Peterffy Foundation Inc 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.