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· Private foundation

Ainslie Foundation

Its FY2024 filing reports that it funds preselected organizations and did not take unsolicited requests; check the foundation's own site before ruling it out.

$16M
Granted FY2024still arriving
107
Grants FY2024still arriving
13
States reached
$4.5M
Largest
01What it funds
01100% classified

What it funded, over time

Every grant placed by its stated purpose and the recipient’s mission, by year, FY2019 to 2024.

Education$28MPhilanthropy$27MAnimals$9.7MYouth Development$6.5MHealth$3.4MArts & Culture$2.2MEnvironment$1.9MScience & Tech$1.2MOther$0
02FY2024 · 107 grants

Where the money goes

Grants by size, and the largest recipients.

By grant size · FY2024

  • Under $10k21 grants · $95k
  • $10k–50k53 grants · $909k
  • $50k–250k26 grants · $2.0M
  • $250k+7 grants · $13M
$25,000
Median grant
13
States reached
$456M
Total assets
Largest grants
RecipientAmount
ROBIN HOOD FOUNDATION$4,550,000
WILDLIFE CONSERVATION SOCIETY$2,000,000
BOYS & GIRLS CLUBS OF MARTIN COUNTY INC$2,000,000
BOYS' CLUB OF NEW YORK$1,667,000
COLD SPRING HARBOR LABORATORY$1,100,000
MAVERICK CAPITAL FOUNDATION$1,000,000
BOYS & GIRLS CLUBS OF MARTIN COUNTY INC$250,000
JOHNS HOPKINS UNIVERSITY$150,000
WILDLIFE CONSERVATION SOCIETY$150,000
NORTHWELL HEALTH (GLEN COVE HOSPITAL)$125,000
UNIVERSITE LAVAL$104,000
THE EVERGLADES FOUNDATION$100,000
ENVIRONMENTAL DEFENSE FUND$100,000
BOYS' CLUB OF NEW YORK$100,000
NPOWER$100,000
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 (FY19–24, $765k) land where the poverty rate runs at 12%, against an area that typically sits at 10%. 50% of those dollars go to grantees based in above-average-need neighborhoods. Its grants spread fairly evenly across need levels.

area typical 10%THIRD OPTION FOUNDATION: $10k → 6%MAINE RECOVERY FUND: $75k → 7%THIRD OPTION FOUNDATION: $10k → 6%MAINE RECOVERY FUND: $75k → 7%THIRD OPTION FOUNDATION: $5k → 6%MAINE RECOVERY FUND: $75k → 7%MAINE RECOVERY FUND: $75k → 7%UNITED RECOVERY FUND: $50k → 7%ISLAND HARVEST: $3k → 6%ISLAND HARVEST: $3k → 6%GOOD SHEPHERD SERVICES: $10k → 17%HARLEM CHILDREN'S ZONE: $100k → 17%HARLEM CHILDREN'S ZONE: $100k → 17%HARLEM CHILDREN'S ZONE: $50k → 17%HARLEM CHILDREN'S ZONE: $50k → 17%HARLEM CHILDREN'S ZONE: $50k → 17%HARLEM CHILDREN'S ZONE: $25k → 17%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

ME
WA
MN
IL
NY
MA
OR
WY
PA
CT
CA
UT
VA
MD
TN
NC
DC
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.
03Its grantees
repeat funding

Who it funds again

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

99%of every dollar goes to organizations it has funded before.
$82M · 112 repeat orgs$1.3M to everyone else

Grantees it renews have grown median revenue +42% since the first grant, against +25% for those funded once.

112 repeat relationships: 77 still active in FY2024, 35 since wound down; 19 grantees were first funded in FY2024 (too recent to call).

How the two cohorts compare

Re-uppedFunded once

Organizations

112
44

Total granted

$82M
$810k

Median revenue growth · since first grant

+42%
+25%

Still filing today

81%
82%

New vs renewed · share of each year

In FY2024, 97% of grant dollars renewed an existing relationship; $442k went to new ones.

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

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

’19’20’21’22’23’24
EducationArts & CultureEnvironmentPhilanthropyHealthYouth DevelopmentOther
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

  • RH
    ROBIN HOOD FOUNDATION
    6× · 2019–2024 · $16M · revenue +19%
  • MC
    MAVERICK CAPITAL FOUNDATION
    5× · 2020–2024 · $11M · revenue +6% · 79% of their budget
  • WC
    Wildlife Conservation Society
    6× · 2019–2024 · $9.7M · revenue +52%

Funded once

  • NY
    New York City Partnership Foundation Inc
    one grant, 2022 · $100k · revenue -54%
  • AW
    AUSTRALIAN WILDLIFE CONSERVANCY USA INCgraduated
    one grant, 2023 · $55k · revenue +40% · 29% of their budget
  • UF
    UTAH FILM CENTERgraduated
    one grant, 2023 · $50k · revenue +54%
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
The Trustees of Princeton University

Research, education and general - princeton university is a private not-for-profit, non-sectarian institution of higher learning with approximately 5,700 undergraduate and 3,300 graduate students. 2,500 students graduated in the 2024-2025…

Education
2
United States Naval Institute

Provide an independent forum for those who dare to read, think, speak, and write to advance the professional, literary, and scientific understanding of sea power and other issues critical to global security.

—
3
Manhattanville University

To educate students to be ethical and socially responsible leaders in a global community.

Education
4
Boston Architectural College

The bac is committed to provide excellence in design education grounded in practice and accessible to diverse communities.

—
5
University of New Haven

The University of New Haven is a student-centered comprehensive university with an emphasis on excellence in liberal arts and professional education. Our mission is to prepare our students to lead purposeful and fulfilling lives in a…

Education
6
Northeast College of Health Sciences

Northeast college of health sciences (the college) is committed to academic excellence, leadership, and professional best practices in the health sciences.

Education
7
Massachusetts Institute of Technology

The mission of mit is to advance knowledge and educate students in science, technology, and other areas of scholarship that will best serve the nation and the world in the 21st century.

Education
8
President and Fellows of Harvard College

Undergraduate, graduate, and professional education and research across a broad array of academic domains.

Education
9
New York Genome Center Inc

Operate a state-of-the-art, world-class genomic research center that creates and uses advanced genomics to understand the genetic basis of disease. for more information, see schedule o.

Health
10
New York Botanical Garden

The new york botanical garden is a museum of plants and a scientific research center devoted to the study of plants and their uses. it is the garden's mission to improve public understanding of the natural world, horticulture, and the…

Environment
11
Stony Brook Urology University Faculty Practice Corporation

Provide clinical instruction to and supervision of medical school students, interns and residents and, incident thereto, rendering professional services.

Health
12
Neurology Associates of Stony Brook University Faculty Practice Corp

Provide clinical instruction to and supervision of medical school students, interns and residents and, incident thereto, rendering professional services.

Health
How this is measured
The grantee most central to the portfolio’s shape is Success Academy Charter Schools Inc; the most unlike its peers is The Brooklyn Nets & New York Liberty Foundation. Resemblance is measured on each organization’s own IRS 990 mission text; it reflects how work is described, not its quality or impact.
04the grantee network

146 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. 146 of the 181 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.

2
Load-bearing (≥25% of a budget)
27
Early backer (in before they grew)
145/146
Grantees still filing
105/146
Grew since first funded

Where the money sits, by cause and then by grantee

ROBIN HOOD FOUNDATION: $15,747,000 · PhilanthropyROBIN HOOD FOUNDATIONMAVERICK CAPITAL FOUNDATION: $11,300,000 · PhilanthropyMAVERICK CAPITAL FOUNDATIONJEFFERSON SCHOLARS FOUNDATION: $1,560,000 · Philanthropy+15 more: $659,500 · PhilanthropyTHE PROTESTANT EPISCOPAL HIGH SCHOOL IN VIRGINIA: $21,263,000 · EducationTHE PROTESTANT EPISCOPAL HIGH SCH…Bowdoin College: $1,200,000 · EducationTHE ROCKEFELLER UNIVERSITY: $1,000,000 · Education+22 more: $1,609,000 · Education+22 moreWildlife Conservation Society: $9,650,000 · AnimalsWildlife Cons…+2 more: $15,000 · AnimalsBOYS & GIRLS CLUB OF MARTIN COUNTY: $3,472,500 · Youth DevelopmentTHE BOYS' CLUB OF NEW YORK: $2,493,750 · Youth DevelopmentGRENVILLE BAKER BOYS AND GIRLS CLUB INC: $325,000 · Youth Development+5 more: $322,500 · Youth DevelopmentNEW YORK-PRESBYTERIAN HOSPITAL: $1,350,000 · OtherNEW YORK-PRE…WEST PALM GOLF COMMUNITY TRUST INC: $1,010,000 · OtherWEST PALM GO…COLD SPRING HARBOR LABORATORY: $1,170,000 · OtherCOLD SPRING …The Broad Institute Inc: $350,000 · OtherHARLEM CHILDREN'S ZONE INC: $375,000 · OtherUnited Recovery Fund: $350,000 · OtherNPOWER INC: $570,000 · OtherNPOWER INCACUMEN FUND INC: $550,000 · OtherACUMEN FUND …+79 more: $3,429,850 · Other+79 moreWORLD TRADE CENTER PERFORMING ARTS CENTER INC: $1,000,000 · Arts & CultureSMITHSONIAN INSTITUTION: $596,000 · Arts & CultureTHE BARACK OBAMA FOUNDATION: $300,000 · Arts & Culture+18 more: $505,100 · Arts & CultureENVIRONMENTAL DEFENSE FUND INCORPORATED: $575,000 · EnvironmentTHE EVERGLADES FOUNDATION INC: $510,000 · EnvironmentNANTUCKET CONSERVATION FOUNDATION INC: $117,500 · EnvironmentCERES INC: $100,000 · EnvironmentCDP NORTH AMERICA INC: $100,000 · EnvironmentWORLD WILDLIFE FUND INC: $100,000 · EnvironmentTHE NORTH SHORE LAND ALLIANCE INC: $64,500 · Environment+12 more: $154,250 · Environment
Philanthropy$29,266,500Education$25,072,000Animals$9,665,000Youth Development$6,613,750Other$9,154,850Arts & Culture$2,401,100Environment$1,721,250

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

25%50%75%100%$1.0M$10M$100Mgrantee revenue →↑ funder's share of their budgetTHE PROTESTANT EPISCOPAL HIGH SCHOOL IN VIRGINIA: $21,263,000 over 6y, 13% of budgetROBIN HOOD FOUNDATION: $15,747,000 over 6y, 2.5% of budgetMAVERICK CAPITAL FOUNDATION: $11,300,000 over 5y, 79% of budgetWildlife Conservation Society: $9,650,000 over 6y, 0.7% of budgetBOYS & GIRLS CLUB OF MARTIN COUNTY: $3,472,500 over 6y, 15% of budgetTHE BOYS' CLUB OF NEW YORK: $2,493,750 over 6y, 9.5% of budgetJEFFERSON SCHOLARS FOUNDATION: $1,560,000 over 6y, 4.5% of budgetBowdoin College: $1,200,000 over 6y, 0.1% of budgetCOLD SPRING HARBOR LABORATORY: $1,170,000 over 3y, 0.5% of budgetWEST PALM GOLF COMMUNITY TRUST INC: $1,010,000 over 3y, 8.1% of budgetTHE ROCKEFELLER UNIVERSITY: $1,000,000 over 3y, 0.1% of budgetWORLD TRADE CENTER PERFORMING ARTS CENTER INC: $1,000,000 over 3y, 0.6% of budgetSMITHSONIAN INSTITUTION: $596,000 over 3y, 0.0% of budgetENVIRONMENTAL DEFENSE FUND INCORPORATED: $575,000 over 6y, 0.1% of budgetNPOWER INC: $570,000 over 6y, 0.8% of budgetACUMEN FUND INC: $550,000 over 6y, 0.4% of budgetTHE EVERGLADES FOUNDATION INC: $510,000 over 6y, 0.8% of budgetHARLEM CHILDREN'S ZONE INC: $375,000 over 6y, 0.1% of budgetUnited Recovery Fund: $350,000 over 5y, 24% of budgetThe Broad Institute Inc: $350,000 over 2y, 0.0% of budgetThe President and Trustees of Colby College: $325,000 over 6y, 0.0% of budgetGRENVILLE BAKER BOYS AND GIRLS CLUB INC: $325,000 over 6y, 5.4% of budgetTHE BARACK OBAMA FOUNDATION: $300,000 over 2y, 0.2% of budgetTeach for America Inc: $280,000 over 6y, 0.1% of budgetAMERICAN ACADEMY OF ACHIEVEMENT: $250,000 over 2y, 8.7% of budgetJOHNS HOPKINS UNIVERSITY: $150,000 over 1y, 0.0% of budgetPEER HEALTH EXCHANGE INC: $150,000 over 3y, 0.9% of budgetMARINE CORPS SCHOLARSHIP FOUNDATION INC: $150,000 over 2y, 0.3% of budgetCIA OFFICERS MEMORIAL FOUNDATION: $140,000 over 5y, 0.9% of budgetJupiter Medical Center Foundation Inc: $125,000 over 3y, 0.1% of budgetPARTNERSHIP TO END ADDICTION: $120,000 over 6y, 0.2% of budgetTHE NATURE CONSERVANCY: $120,000 over 4y, 0.0% of budgetNANTUCKET CONSERVATION FOUNDATION INC: $117,500 over 6y, 0.4% of budgetCommunity Foundation for Nantucket Inc: $110,000 over 4y, 0.7% of budgetNew York City Partnership Foundation Inc: $100,000 over 1y, 0.9% of budgetCERES INC: $100,000 over 2y, 0.1% of budgetCDP NORTH AMERICA INC: $100,000 over 2y, 0.2% of budgetTilting Futures Incorporated: $100,000 over 4y, 0.6% of budgetWORLD WILDLIFE FUND INC: $100,000 over 2y, 0.0% of budgetGLEN COVE BOYS & GIRLS CLUB AT LINCOLN HOUSE INC: $95,000 over 6y, 1.7% of budgetTRUSTEES OF THE UNIVERSITY OF PENNSYLVANIA: $75,000 over 3y, 0.0% of budgetCOMMON SENSE MEDIA: $75,000 over 6y, 0.1% of budgetCOLLEGE TRACK: $75,000 over 3y, 0.1% of budgetNANTUCKET HISTORICAL ASSOCIATION: $71,000 over 5y, 0.3% of budgetLYNCHBURG CITY SCHOOLS EDUCATION FOUNDATION INC: $70,000 over 4y, 7.5% of budgetTHE NORTH SHORE LAND ALLIANCE INC: $64,500 over 4y, 2.2% of budgetB ROBERT WILLIAMSON JR FOUNDATION: $60,000 over 5y, 4.9% of budgetMuseum of Modern Art: $60,000 over 6y, 0.0% 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 THE PROTESTANT EPISCOPAL HIGH SCHOOL IN VIRGINIA ↗
  • Who funds ROBIN HOOD FOUNDATION ↗
  • Who funds MAVERICK CAPITAL FOUNDATION ↗
  • Who funds Wildlife Conservation Society ↗
  • Who funds BOYS & GIRLS CLUB OF MARTIN COUNTY ↗
  • Who funds THE BOYS' CLUB OF NEW YORK ↗
  • Who funds JEFFERSON SCHOLARS FOUNDATION ↗
  • Who funds Bowdoin College ↗
  • Who funds COLD SPRING HARBOR LABORATORY ↗
  • Who funds WEST PALM GOLF COMMUNITY TRUST INC ↗
  • Who funds THE ROCKEFELLER UNIVERSITY ↗
  • Who funds WORLD TRADE CENTER PERFORMING ARTS CENTER INC ↗
  • Who funds SMITHSONIAN INSTITUTION ↗
  • Who funds ENVIRONMENTAL DEFENSE FUND INCORPORATED ↗
  • Who funds NPOWER INC ↗
  • Who funds ACUMEN FUND INC ↗
  • Who funds THE EVERGLADES FOUNDATION INC ↗
  • Who funds HARLEM CHILDREN'S ZONE INC ↗
  • Who funds United Recovery Fund ↗
  • Who funds The Broad Institute Inc ↗
  • Who funds The President and Trustees of Colby College ↗
  • Who funds GRENVILLE BAKER BOYS AND GIRLS CLUB INC ↗
  • Who funds THE BARACK OBAMA FOUNDATION ↗
  • Who funds Teach for America Inc ↗
  • Who funds AMERICAN ACADEMY OF ACHIEVEMENT ↗
  • Who funds JOHNS HOPKINS UNIVERSITY ↗
  • Who funds PEER HEALTH EXCHANGE INC ↗
  • Who funds MARINE CORPS SCHOLARSHIP FOUNDATION INC ↗
  • Who funds CIA OFFICERS MEMORIAL FOUNDATION ↗
  • Who funds Jupiter Medical Center Foundation Inc ↗
  • Who funds PARTNERSHIP TO END ADDICTION ↗
  • Who funds THE NATURE CONSERVANCY ↗
  • Who funds NANTUCKET CONSERVATION FOUNDATION INC ↗

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.

Hugh and Patricia Okane Foundation Co Hugh OkaneFL28.3× affinity11 shared granteesties to 11 of 11Hover any node to trace its alignments.Compare side by side →

Open a dossier: Hugh and Patricia Okane Foundation Co Hugh Okane · The Goldman Sachs Charitable Gift Fund · Robertson Foundation · The New York Community Trust · The Bahnik Foundation Inc · The Stebbins Fund Inc · The Moore Charitable Foundation Inc · Herbert L Smith III Family Fund · W F Whitman Family Foundation Inc · The Lazard Charitable Foundation · The Pamela Howard Family Foundation Inc · The Barker Welfare 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 Ainslie Foundation funds: left to right is the share of its income from government, bottom to top the share from Ainslie Foundation. Bigger dots raise more.

2024
’20’21’22’23’24’25
no gov · 150%6%25%56%100%funder's share of their income ↑0%15%30%45%60%share of the org’s income from government →median 4%
  • The Broad Institute Inc: 19% of income from government
  • Johns Hopkins University: 12% of income from government
  • Community Foundation for Nantucket Inc: 10% of income from government
  • Dana-Farber Cancer Institute Inc: 7% of income from government
  • Planned Parenthood of South Florida and the Treasure Coast Inc: 6% of income from government
  • Nantucket Conservation Foundation Inc: 4% of income from government
  • Shatterproof a Nonprofit Corporation: 2% of income from government
  • Boys & Girls Club of Martin County: 2% of income from government
  • The Banner Lake Club Inc: 1% of income from government
  • Nantucket Historical Association: 1% of income from government
  • American Repertory Theatre Co Inc: 0% of income from government
  • Ceres Inc: 0% of income from government
no gov moneyreceives it· size = income
15get no government money at all
34report government grants on their 990 we could not trace to a source (not plotted)
0rely on government for over half their income
⤢ axis zoomed · 0–60%
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 Ainslie Foundation?

Find your warmest path to Ainslie Foundation 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 181 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 2024, released 2024. Filings run roughly 12 to 24 months behind; figures are dated accordingly.

Source object · view filing

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