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· 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.

$6.8M
Granted FY2025still arriving
60
Grants FY2025still arriving
19
States reached
$1.0M
Largest
01What it funds
0199% classified

What it funded, over time

Every grant placed by its stated purpose and the recipient’s mission, by year, FY2017 to 2025.

Environment$21MCivil Rights$6.0MHealth$3.3MPhilanthropy$2.5MAnimals$1.4MInternational$1.4MArts & Culture$1.2MReligion$900kOther$0
02FY2025 · 60 grants

Where the money goes

Grants by size, and the largest recipients.

By grant size · FY2025

  • Under $10k5 grants · $24k
  • $10k–50k14 grants · $315k
  • $50k–250k35 grants · $3.5M
  • $250k+6 grants · $3.0M
$50,000
Median grant
19
States reached
$244M
Total assets
Largest grants
RecipientAmount
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
SKY'S THE LIMIT FUND$200,000
CONSULTANTS FOR INDIAN PROGRESS$200,000
WILDERNESS WORKSHOP$200,000
FRIENDS OF CONSERVATIO CARPATHIA IN THE UNITED STATES$200,000
RECYCLE HAWAII$200,000
EARTHJUSTICE$200,000
RAINCOAST CONSERVATION FOUNDATION$150,000
LA MAIDA PROJECT$150,000
THE WILDERNESS SOCIETY$120,000
02The need
03

Does the money reach high-need areas?

Each grant placed by the hardship in its grantee’s ZIP, against the area’s typical level.

show:

Its 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. Its grants spread fairly evenly across need levels.

area typical 10%SKY'S THE LIMIT FUND: $500k → 8%FORUM 21 INSTITUTE: $6k → 17%KANA SAMURAI FOUNDATION: $15k → 5%EKVNV-YEFOLECVLKE: $280k → 18%SKY'S THE LIMIT FUND: $200k → 8%KALAUOKEKAHULI: $20k → 9%EKVNV YEFOLECVLKE: $118k → 18%SKY'S THE LIMIT FUND: $200k → 8%EKVNV YEFOLECVLKE: $110k → 18%FOUR WINDS AMERICAN INDIAN COUNCIL: $15k → 12%SKY'S THE LIMIT FUND: $200k → 8%EKVNV YEFOLECVIKE: $74k → 18%FOUR WINDS AMERICAN INDIAN COUNCIL: $10k → 12%SKY'S THE LIMIT FUND: $200k → 8%EKVNV YEFOLECVLKE: $30k → 18%SKY'S THE LIMIT FUND: $200k → 8%SKY'S THE LIMIT FUND: $50k → 8%EARLY LEARNING CENTER INC: $20k → 6%TRIBAL LINK FOUNDATION INC: $50k → 17%TRIBAL LINK FOUNDATION INC: $32k → 17%TRIBAL LINK FOUNDATION INC: $20k → 17%FAR AWAY PROJECTS: $500k → 10%0%20%40%50%more need →
grant to an above-average-need area below average· circle size = grant amount
How this is measured
Matched: human-services grants are those whose grantee’s IRS cause code is Human Services. Placed by people below the poverty line in the grantee’s ZIP, averaged from the tracts in that ZIP.

Which US states its grants reach

AK
ME
VT
NH
WA
MN
IL
NY
MA
OR
WY
SD
IN
OH
PA
CT
CA
UT
CO
VA
MD
AZ
NM
KS
AR
TN
NC
DC
HI
AL
GA
TX
FL
How this is measured
US grants placed by each grantee’s ZIP, which can differ from where services are delivered. Need from public data (U.S. Census/ACS, CDC PLACES, Eviction Lab, USDA), shown as context about the area, never attributed to the funder’s giving.
04

Where the work is directed

The same grants placed two ways: where each recipient sits, and where its stated purpose sends the money.

About 5% of The Peterffy Foundation Inc’s grant dollars are earmarked for a different county than the recipient’s own address.

The Peterffy Foundation Inclessmore of its giving
Placed by recipient address · 9.2% directed abroad (not shown)
How this is measured
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 funder’s own 990 grant descriptions.
03Its grantees
repeat funding

Who it funds again

Organizations funded in more than one year, against those funded once.

85%of every dollar goes to organizations it has funded before.
$32M · 63 repeat orgs$5.5M to everyone else

Grantees it renews have grown median revenue +28% since the first grant, against +6% for those 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

Re-uppedFunded once

Organizations

63
96

Total granted

$32M
$4.9M

Median revenue growth · since first grant

+28%
+6%

Still filing today

79%
51%

New vs renewed · share of each year

In FY2025, 92% of grant dollars renewed an existing relationship; $544k went to new ones.

50%100%’17’18’19’20’21’22’23’24’25
RenewedFirst-time

Where new relationships form · theme of each grantee’s first grant

’17’18’19’20’21’22’23’24’25
EnvironmentHuman ServicesEducationInternationalAnimalsHealthOther
How this is measured
First-time means a grantee’s first year in the filing window; renewed means funded in an earlier year too. The renewed share climbs naturally as a portfolio matures, so the signal is a year that bucks it (a wave of new grantees). 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

  • LI
    Land is Life Inc
    5× · 2019–2023 · $4.5M · revenue +44% · 48% of their budget
  • CH
    COLLECTIVE HERITAGE INSTITUTE
    8× · 2018–2025 · $2.4M · revenue +70% · 28% of their budget
  • ST
    SKY'S THE LIMIT FUND
    6× · 2020–2025 · $1.6M · revenue +50% · 39% of their budget

Funded once

  • FA
    FAR AWAY PROJECTS
    one grant, 2020 · $500k · revenue +6% · 58% of their budget
  • PF
    PUMAMAQUI FOUNDATION
    one grant, 2023 · $400k
  • SF
    SeaLegacy Foundation Inc
    one grant, 2023 · $200k · revenue -46%
How this is measured

Repeat means funded in two or more distinct years. Growth and survival are read from each grantee’s own subsequent IRS filings.

04Its field

Closest unfunded matches

The nonprofits that most resemble its grantees but are not funded by it, scored along the direction from the rest of the field toward the portfolio. A resemblance in what they say they do, not a recommendation.

1
Global Forest Generation

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,…

Environment
2
Rainforest Foundation Inc

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.

Environment
3
Nature for Justice

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.

Environment
4
Wild Earth Allies Inc

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…

Environment
5
Nature and Culture International

Nature and culture international conserves biologically diverse landscapes in latin america, in concert with local cultures, for the well-being of the planet.

Environment
6
Natura International Inc

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…

Public Benefit
7
Collaborative Earth Institute

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.

Science & Tech
8
Natura Bolivia Foundation

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…

International
9
Rainforest Action Network

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.

Environment
10
Nia Tero Foundation

Nia tero works alongside indigenous peoples to secure their guardianship of vital ecosystems. indigenous peoples are guardians of earth.(see schedule o)

Environment
11
Eden Peopleplanet

To offer the dignity of fair employment to people living in impoverished communities, who become transformational agents of global forest restoration.

International
12
Rainforest Trust

Rainforest trust saves endangered wildlife and protects our planet by creating rainforest reserves through partnerships, community engagement, and donor support.

International
How this is measured
The grantee most central to the portfolio’s shape is Social and Environmental Entrepreneurs (See) Inc; 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.
05the grantee network

123 grantees tracked through their own filings, 2017–2025.

Each grant beside the grantee’s revenue from every source, year by year.

How this is measured

Counted here: distinct organizations funded across 2017 to 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.

Each grantee is resolved to its own IRS returns. Association, dated; never a causal claim.

14
Load-bearing (≥25% of a budget)
36
Early backer (in before they grew)
120/123
Grantees still filing
71/123
Grew since first funded

Where the money sits, by cause and then by grantee

Land is Life Inc: $4,528,112 · OtherLand is Life IncWILDERNESS WORKSHOP: $900,000 · OtherDrylands Agroecology Research Foundation: $1,140,000 · OtherDrylands Agroecology Research Foundation+109 more: $10,997,691 · Other+109 moreQUIPA INC: $3,247,000 · EnvironmentQUIPA INCONE EARTH PHILANTHROPY: $1,720,000 · EnvironmentONE EARTH PHILANTHROPYMOTHERS OF THE AMAZON: $861,085 · EnvironmentMOTHERS OF THE AMAZONRECYCLE HAWAII: $764,815 · EnvironmentRECYCLE HAWAIISTAND: $650,000 · EnvironmentSTANDOregon Natural Resources Council Fund Oregon Wild: $640,000 · EnvironmentOregon Natural Resources Council…REGENERATIVE EARTH: $533,639 · EnvironmentTHE WILDERNESS SOCIETY: $480,000 · Environment+25 more: $2,340,313 · Environment+25 moreSKY'S THE LIMIT FUND: $1,550,000 · Human ServicesSKY'S THE …SEVENTH GENERATION FUND FOR INDIGENOUS PEOPLES INC: $625,000 · Human ServicesSEVENTH GE…EKVNV YEFOLECVLKE: $612,389 · Human ServicesEKVNV YEFO…FAR AWAY PROJECTS: $500,000 · Human ServicesFAR AWAY P…+6 more: $187,500 · Human Services+6 moreCOLLECTIVE HERITAGE INSTITUTE: $2,395,000 · Social ScienceKINDLE PROJECT: $575,000 · PhilanthropyTIDES FOUNDATION: $530,000 · PhilanthropyRAINCOAST CONSERVATION FOUNDATION: $450,000 · PhilanthropyAmalgamated Charitable Foundation Inc: $250,000 · Philanthropy+6 more: $128,511 · PhilanthropyFRANKFURT ZOOLOGICAL SOCIETY - US INC: $975,000 · AnimalsSEE TURTLES: $180,599 · AnimalsGREAT WHALE CONSERVANCY: $100,000 · AnimalsGREATER FARALLONES ASSOCIATION: $100,000 · Animals+3 more: $85,000 · AnimalsGREENWAVE ORGANIZATION CORP: $630,000 · EducationFLORIDA INTERNATIONAL UNIVERSITY FOUNDATION INC: $200,000 · EducationWaterfall Unity Alliance: $160,000 · EducationINDIGENOUS ENVIRONMENTAL NETWORK: $120,000 · EducationPRESENCING INSTITUTE INC: $90,000 · EducationNA AIKANE O MAUI INC: $55,000 · Education+4 more: $33,675 · Education
Other$17,565,803Environment$11,236,852Human Services$3,474,889Social Science$2,395,000Philanthropy$1,933,511Animals$1,440,599Education$1,288,675

Each grantee by its size and the funder’s share of it; top left is load-bearing

25%50%75%100%$100k$1.0M$10M$100Mgrantee revenue →↑ funder's share of their budgetLand is Life Inc: $4,528,112 over 5y, 48% of budgetQUIPA INC: $3,247,000 over 3y, 100% of budgetCOLLECTIVE HERITAGE INSTITUTE: $2,395,000 over 8y, 28% of budgetONE EARTH PHILANTHROPY: $1,720,000 over 4y, 9.0% of budgetSKY'S THE LIMIT FUND: $1,550,000 over 6y, 39% of budgetDrylands Agroecology Research Foundation: $1,140,000 over 4y, 17% of budgetFRANKFURT ZOOLOGICAL SOCIETY - US INC: $975,000 over 5y, 2.5% of budgetWILDERNESS WORKSHOP: $900,000 over 5y, 11% of budgetMOTHERS OF THE AMAZON: $861,085 over 3y, 42% of budgetRECYCLE HAWAII: $764,815 over 4y, 78% of budgetSTAND: $650,000 over 6y, 2.3% of budgetOregon Natural Resources Council Fund Oregon Wild: $640,000 over 4y, 9.8% of budgetGREENWAVE ORGANIZATION CORP: $630,000 over 8y, 7.0% of budgetSEVENTH GENERATION FUND FOR INDIGENOUS PEOPLES INC: $625,000 over 3y, 3.5% of budgetEKVNV YEFOLECVLKE: $612,389 over 5y, 5.9% of budgetKINDLE PROJECT: $575,000 over 2y, 4.3% of budgetCOMMON COUNSEL FOUNDATION: $546,000 over 2y, 0.5% of budgetREGENERATIVE EARTH: $533,639 over 5y, 67% of budgetTIDES FOUNDATION: $530,000 over 5y, 0.0% of budgetWomen's Earth and Climate Action Network: $528,500 over 8y, 11% of budgetFAR AWAY PROJECTS: $500,000 over 1y, 58% of budgetTHE WILDERNESS SOCIETY: $480,000 over 4y, 0.3% of budgetLA MAIDA PROJECT: $465,000 over 5y, 29% of budgetSEEDS OF WISDOM INC: $453,000 over 6y, 29% of budgetRAINCOAST CONSERVATION FOUNDATION: $450,000 over 4y, 20% of budgetBuckminster Fuller Institute: $370,000 over 4y, 3.2% of budgetHONOR THE EARTH: $341,000 over 2y, 4.8% of budgetPeace Development Fund: $276,190 over 3y, 2.8% of budgetEARTHWAYS FOUNDATION INC: $254,197 over 2y, 38% of budgetAmalgamated Charitable Foundation Inc: $250,000 over 1y, 0.1% of budgetAmazon Watch Inc: $235,450 over 8y, 2.2% of budgetSeaLegacy Foundation Inc: $200,000 over 1y, 8.6% of budgetSOUTHERN ENVIRONMENTAL LAW CENTER: $200,000 over 4y, 0.1% of budgetEARTHJUSTICE: $200,000 over 1y, 0.1% of budgetFLORIDA INTERNATIONAL UNIVERSITY FOUNDATION INC: $200,000 over 4y, 0.1% of budgetKLAMATH-SISKIYOU WILDLANDS CENTER: $200,000 over 4y, 5.9% of budgetENVIRONMENTAL LAW AND POLICY CENTER ACTION FUND: $200,000 over 4y, 16% of budgetSEE TURTLES: $180,599 over 4y, 10% of budgetTHOUSAND CURRENTS: $180,000 over 6y, 0.5% of budgetFISCAL SPONSORSHIP ALLIES INC: $180,000 over 4y, 0.9% of budgetBREATH OF MY HEART BIRTH PLACE: $165,000 over 3y, 3.6% of budgetSPRUCE ROOT INC: $160,000 over 2y, 0.9% of budgetWaterfall Unity Alliance: $160,000 over 1y, 31% of budgetFRIENDS OF THE OSA: $155,000 over 2y, 3.3% of budgetGLOBAL JUSTICE ECOLOGY PROJECT INC: $150,000 over 3y, 3.4% of budgetCOMMUNITY ROOTS MIDWIFE COLLECTIVE: $150,000 over 3y, 6.7% of budgetFINS ATTACHED MARINE RESEARCH: $140,000 over 4y, 6.0% of budgetAlliance for Global Justice Corp: $130,000 over 1y, 1.9% of budget
Grantee by grantee: a decade per organization, before and after funding

A decade per grantee: revenue shaded, 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 SeaLegacy Foundation Inc ↗
  • Who funds SOUTHERN ENVIRONMENTAL LAW CENTER ↗

Co-funders

Grantmakers whose grantees overlap with this funder’s far more than size alone predicts. Closer means stronger alignment; arcs show where they also fund each other. Here they form a tightly interlocked group: most of these funders back each other's grantees too.

Rsf Social Finance IncCA38.3× affinity20 shared granteesties to 11 of 11Hover any node to trace its alignments.Compare side by side →

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

How this is measured
Affinity is a Gamma-Poisson posterior co-funding rate, re-centered on the typical rate, so thin evidence shrinks toward no signal. Overlap is association, not proof of shared intent.

How much its grantees rely on government

Each dot is one organization The Peterffy Foundation Inc funds: left to right is the share of its income from government, bottom to top the share from The Peterffy Foundation Inc. Bigger dots raise more.

2024
’20’21’22’23’24’25
no gov · 140%6%25%56%100%funder's share of their income ↑0%25%50%75%100%share of the org’s income from government →median 11%
  • 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
no gov moneyreceives it· size = income
14get no government money at all
18report government grants on their 990 we could not trace to a source (not plotted)
0rely on government for over half their income
typical government reliance, FY20–25
How this is measured
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 a grant caused the public funding. Coverage is precision-first, a floor rather than 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 to 24 months.
05Through Plinth

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.

On method. Every financial figure here is read from IRS e-file XML, the funder’s own 990/990-PF, and from the multi-year returns of the 183 grantees we resolved, each linked to its source. Grantee outcomes are each organization’s own program-service reporting (Form 990, Part III), read as association with funding, never as caused by it. Low-confidence name matches are suppressed rather than guessed. How we build these →

How this is measured
Each figure carries one of six labels. Filed is what the funder reported on its return. Official is another government record about an organization, such as a federal award or a charity register, joined by name where no shared identifier exists. Resolved is an identity we worked out where the filing named a recipient without an EIN, kept only above a measured confidence threshold. Computed is arithmetic over those, like themes, portfolio clusters and co-funder strength. Context is a statistic about a place rather than about an organization, which is what the need overlay is: it describes the area a grantee’s address sits in, not where its work lands. Inferred is drawn by a model from text, like the partnerships read out of public news and organization websites. Each is labeled where it appears.

Generated from the IRS Form 990-PF e-file return for fiscal year 2025, released 2025. Filings run roughly 12 to 24 months behind; figures are dated accordingly.

Source object · view filing

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