The Ainslie Foundation makes a small number of very large, often repeat grants to organizations across education, youth services/social welfare, conservation, and scientific research. Giving is national in reach (beneficiaries include New York institutions and regional youth organizations) and includes both direct service providers and philanthropic intermediaries. The foundation appears to favor institutional, high-impact partners—independent schools, scholarship and research institutions, major conservation groups, and youth development organizations—rather than many small community grants.
Ainslie Foundation’s largest recent grants show a pattern of concentrated support for institutional partners in education, social services, conservation, and research. One of the clearest examples is a $6,725,000 grant to Episcopal High School, alongside seven-figure commitments to the Robin Hood Foundation and the Wildlife Conservation Society. The foundation also backs repeat recipients, including Maverick Capital Foundation, which received grants of $5,000,000, $2,000,000, and $1,000,000 across 2023 to 2025. That repeat pattern points to a funder that often returns to the same organizations rather than spreading support across many one-off awards. Its portfolio includes independent schools, youth-serving groups, major environmental organizations, biomedical research institutions, and philanthropic intermediaries. Recent awards also reached Boys & Girls Clubs of Martin County, Boys' Club of New York, Cold Spring Harbor Laboratory, and The Rockefeller University, showing a mix of direct service, scientific research, and pooled philanthropy. The foundation’s giving is national in scope and appears to favor established organizations with large operating capacity and broad reach.
Education is a major thread in the foundation’s recent grants. It gave $6,725,000 to Episcopal High School for education, $1,510,000 to Jefferson Scholars Foundation for education, and $275,000 to Bowdoin College for education. In biomedical and medical research, the foundation supported Cold Spring Harbor Laboratory with $1,100,000, The Rockefeller University with $600,000, Broad Institute with $250,000, and Johns Hopkins University with $150,000 for a neutrophil grant. Environmental preservation is another recurring area, with $2,600,000, $2,100,000, $2,000,000, and $150,000 going to Wildlife Conservation Society across 2023 and 2025. The foundation also made community-outreach awards to Boys & Girls Clubs of Martin County and Boys' Club of New York, each appearing more than once in the recent-grants list.
Ainslie Foundation’s typical grant size is $10,000 at the 25th percentile, $10,000 at the median, and $50,000 at the 75th percentile, which sits alongside a small number of much larger awards in the recent-grants list. The pattern is repeat giving: several recipients reappear across multiple years, including Maverick Capital Foundation, Robin Hood Foundation, Wildlife Conservation Society, Episcopal High School, and Boys & Girls Clubs of Martin County. It is a regular funder rather than a donor-advised fund, and it funds individuals. The grant list suggests a mix of operating support, institutional support, and targeted project grants, including research, education, conservation, and community programs.
$15.5M
$456.1M
$1.2M
$17.7M
Most grants fall between $10K and $50K, with a median of $10K.
25th Percentile
$10K
Median
$10K
75th Percentile
$50K
About 1% of grants go to recipients in NY.
Top 2 recipient countries by grant volume for Ainslie Foundation.
| Rank | Country | Grants | Total | Share |
|---|---|---|---|---|
| 1 | United StatesDomestic | 281 | $63.6M | 99.3% |
| 2 | Canada | 2 |
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Concentrated, high-dollar giving to a small set of repeat institutional grantees; a mix of unrestricted/program support and gifts to major research, education, conservation, and philanthropic intermediaries rather than many small or grassroots grants.
Notable grantees: Robin Hood Foundation, Episcopal High School, Wildlife Conservation Society, Cold Spring Harbor Laboratory, Boys & Girls Clubs of Martin County, Inc.
Grantmaking is national, but the concentration is in New York, which accounts for the largest share of recipient locations. New York-based grantees in the recent list include Robin Hood Foundation in New York, NY; Wildlife Conservation Society in Bronx, NY; Boys' Club of New York in New York, NY; Cold Spring Harbor Laboratory in Cold Spring Harbor, NY; and Northwell Health in New Hyde Park, NY. Outside the United States, the recipient distribution includes 2 grants in Canada, with Universite Laval in Quebec Gv A among the named recipients. Texas appears mainly as the foundation’s headquarters, not as its main grant location.
The recent grants point to education, social services, conservation, biomedical research, and youth development. Named recipients include Episcopal High School, Robin Hood Foundation, Wildlife Conservation Society, Cold Spring Harbor Laboratory, and Boys & Girls Clubs of Martin County. The foundation also supports philanthropic intermediaries such as Maverick Capital Foundation.
Yes. Maverick Capital Foundation appears with grants of $5,000,000, $2,000,000, and $1,000,000 across 2023 to 2025. Robin Hood Foundation, Wildlife Conservation Society, Episcopal High School, and Boys & Girls Clubs of Martin County also receive multiple awards in the recent-grants list.
The foundation’s grant-size distribution centers on smaller awards, with a p25 of $10,000 and a median of $10,000. The 75th percentile is $50,000, even though the recent-grants list also includes several seven-figure grants.
Its giving is national, but New York is the top recipient state by grant count. Recent New York recipients include Robin Hood Foundation in New York, NY; Wildlife Conservation Society in Bronx, NY; Boys' Club of New York in New York, NY; and Cold Spring Harbor Laboratory in Cold Spring Harbor, NY.
Yes. The foundation is marked as funding individuals, in addition to organizations. The recent-grants list is dominated by institutional grantees such as schools, research centers, conservation groups, and community organizations.
2025
Source: IRS Form 990-PF, fiscal year 2025.
| $224K |
0.7% |
Recipient country reflects the grantee's headquarters per IRS 990-PF and Schedule F filings, not the program's implementation country.
Most recent grants reported to the IRS.
| Recipient | Location | Amount | Year | Purpose |
|---|---|---|---|---|
| ROBIN HOOD FOUNDATION | NEW YORK, NY | $4,550,000 | 2025 | SOCIAL SERVICES |
| BOYS & GIRLS CLUBS OF MARTIN COUNTY INC | HOBE SOUND, FL | $2,000,000 | 2025 | COMMUNITY OUTREACH |
| WILDLIFE CONSERVATION SOCIETY | BRONX, NY | $2,000,000 | 2025 | ENVIRONMENTAL PRESERVATION & WILDLIFE CONSERVATION |
| BOYS' CLUB OF NEW YORK | NEW YORK, NY | $1,667,000 | 2025 | COMMUNITY OUTREACH |
| COLD SPRING HARBOR LABORATORY | COLD SPRING HARBOR, NY | $1,100,000 | 2025 | BIOMEDICAL RESEARCH |
| MAVERICK CAPITAL FOUNDATION | DALLAS, TX | $1,000,000 | 2025 | PHILANTHROPY, VOLUNTARISM, AND GRANTMAKING |
| BOYS & GIRLS CLUBS OF MARTIN COUNTY INC | HOBE SOUND, FL | $250,000 | 2025 | COMMUNITY OUTREACH |
| JOHNS HOPKINS UNIVERSITY | BALTIMORE, MD | $150,000 | 2025 | MEDICAL RESEARCH - NEUTROPHIL GRANT |
| WILDLIFE CONSERVATION SOCIETY | BRONX, NY | $150,000 | 2025 | ENVIRONMENTAL PRESERVATION & WILDLIFE CONSERVATION |
| NORTHWELL HEALTH (GLEN COVE HOSPITAL) | NEW HYDE PARK, NY | $125,000 | 2025 | MEDICAL CENTER |
| UNIVERSITE LAVAL | — | $104,000 | 2025 | MEDICAL EDUCATION GRANT |
| ENVIRONMENTAL DEFENSE FUND | NEW YORK, NY | $100,000 | 2025 | ENVIRONMENTAL PRESERVATION |
| NEW YORK-PRESBYTERIAN HOSPITAL | NEW YORK, NY | $100,000 | 2025 | MEDICAL CENTER |
| THE EVERGLADES FOUNDATION | PALMETTO BAY, FL | $100,000 | 2025 | ENVIRONMENTAL PRESERVATION |
| BOYS' CLUB OF NEW YORK | NEW YORK, NY | $100,000 | 2025 | COMMUNITY OUTREACH |
| BOYS' CLUB OF NEW YORK | NEW YORK, NY | $100,000 | 2025 | COMMUNITY OUTREACH |
| NPOWER | BROOKLYN, NY | $100,000 | 2025 | LAUNCHING DIGITAL CAREERS FOR MILITARY VETERANS AND YOUNG ADULTS FROM UNDERSERVED COMMUNITIES |
| ACUMEN FUND INC | NEW YORK, NY | $100,000 | 2025 | PROMOTION OF BUSINESS TO CREATE A GLOBAL COMMUNITY OF EMERGING LEADERS |
| NORTH SHORE LAND ALLIANCE | OYSTER BAY, NY | $50,000 | 2025 | ENVIRONMENTAL PRESERVATION |
| COLBY COLLEGE | WATERVILLE, ME | $50,000 | 2025 | EDUCATION |
| HOSPITAL FOR SPECIAL SURGERY | NEW YORK, NY | $50,000 | 2025 | BIOMEDICAL RESEARCH |
| AMERICAN ACADEMY OF ACHIEVEMENT | WASHINGTON, DC | $50,000 | 2025 | EDUCATION |
| UNITED RECOVERY FUND | PORTLAND, ME | $50,000 | 2025 | PROVIDE SUPPORT FOR PEOPLE AFFECTED BY SUBSTANCE USE DISORDER AND INCARCERATION |
| WORLD WILDLIFE FUND INC | WASHINGTON, DC | $50,000 | 2025 | NATURAL RESOURCE AND WILDLIFE CONSERVATION AND PROTECTION |
| CDP NORTH AMERICA | NEW YORK, NY | $50,000 | 2025 | ENVIRONMENTAL PRESERVATION |
| AMERICAN ACADEMY OF ACHIEVEMENT | WASHINGTON, DC | $50,000 | 2025 | EDUCATION |
| THE NATURE CONSERVANCY | ARLINGTON, VA | $50,000 | 2025 | LAND AND WATER CONSERVATION |
| MASSACHUSETTS GENERAL HOSPITAL | BOSTON, MA | $50,000 | 2025 | MEDICAL CENTER |
| EPISCOPAL HIGH SCHOOL | ALEXANDRIA, VA | $50,000 | 2025 | EDUCATION |
| COMMUNITY FOUNDATION FOR NANTUCKET | NANTUCKET, MA | $50,000 | 2025 | COMMUNITY AND ECONOMIC DEVELOPMENT FOR THE NANTUCKET AREA |
| HARLEM CHILDREN'S ZONE | NEW YORK, NY | $50,000 | 2025 | SOCIAL SERVICES |
| MEMORIAL SLOAN KETTERING CANCER CENTER | NEW YORK, NY | $50,000 | 2025 | CANCER RESEARCH |
| CERES | BOSTON, MA | $50,000 | 2025 | ACCELERATING THE TRANSITION TO A CLEANER, MORE JUST, AND SUSTAINABLE ECONOMY |
| VIRGINIA EPISCOPAL SCHOOL | LYNCHBURG, VA | $30,000 | 2025 | EDUCATION |
| THE CASSANDRA AWARD FOUNDATION | NEW YORK, NY | $25,000 | 2025 | CREATE AWARENESS FOR CREDIBLE WARNINGS |
| EPISCOPAL CHARITIES | NEW YORK, NY | $25,000 | 2025 | COMMUNITY OUTREACH |
| COUNCIL FOR ECONOMIC EDUCATION | NEW YORK, NY | $25,000 | 2025 | SUPPORT ECONOMIC LITERACY AND FINANCIAL EDUCATION |
| CLEVELAND CLINIC MARTIN HEALTH | STUART, FL | $25,000 | 2025 | PATIENT HEALTHCARE, RESEARCH, AND EDUCATION OF HEALTHCARE PROVIDERS |
| COLBY COLLEGE | WATERVILLE, ME | $25,000 | 2025 | EDUCATION |
| GRENVILLE BAKER BOYS & GIRLS CLUB | LOCUST VALLEY, NY | $25,000 | 2025 | COMMUNITY OUTREACH |
| NYU LANGONE HEALTH (FACES) | NEW YORK, NY | $25,000 | 2025 | EPILEPSY RESEARCH, PATIENT CARE, AND SUPPLEMENTARY PROGRAMS |
| GLEN COVE BOYS AND GIRLS CLUB AT LINCOLN HOUSE | GLEN COVE, NY | $25,000 | 2025 | COMMUNITY OUTREACH |
| COLLEGE TRACK | OAKLAND, CA | $25,000 | 2025 | EDUCATION |
| JUPITER MEDICAL CENTER FOUNDATION | JUPITER, FL | $25,000 | 2025 | MEDICAL CENTER |
| THE BANNER LAKE CLUB | HOBE SOUND, FL | $25,000 | 2025 | COMMUNITY OUTREACH |
| FDNY FOUNDATION | BROOKLYN, NY | $25,000 | 2025 | FIRST RESPONDER SUPPORT |
| CIA OFFICERS MEMORIAL FOUNDATION | HERNDON, VA | $25,000 | 2025 | ASSIST SURVIVORS AND DEPENDENTS OF CIA OFFICERS |
| SUCCESS ACADEMY | NEW YORK, NY | $25,000 | 2025 | EDUCATION |
| B ROBERT WILLIAMSON JR FOUNDATION | NEW YORK, NY | $25,000 | 2025 | EDUCATION |
| RESOLV PROVING GROUND | SANFORD, NC | $25,000 | 2025 | PROVIDE EDUCATION, TRAINING, AND FACILITIES TO VETERANS |
ROBIN HOOD FOUNDATION
$4,550,000SOCIAL SERVICES
BOYS & GIRLS CLUBS OF MARTIN COUNTY INC
$2,000,000COMMUNITY OUTREACH
WILDLIFE CONSERVATION SOCIETY
$2,000,000ENVIRONMENTAL PRESERVATION & WILDLIFE CONSERVATION
BOYS' CLUB OF NEW YORK
$1,667,000COMMUNITY OUTREACH
COLD SPRING HARBOR LABORATORY
$1,100,000BIOMEDICAL RESEARCH
MAVERICK CAPITAL FOUNDATION
$1,000,000PHILANTHROPY, VOLUNTARISM, AND GRANTMAKING
BOYS & GIRLS CLUBS OF MARTIN COUNTY INC
$250,000COMMUNITY OUTREACH
JOHNS HOPKINS UNIVERSITY
$150,000MEDICAL RESEARCH - NEUTROPHIL GRANT
WILDLIFE CONSERVATION SOCIETY
$150,000ENVIRONMENTAL PRESERVATION & WILDLIFE CONSERVATION
NORTHWELL HEALTH (GLEN COVE HOSPITAL)
$125,000MEDICAL CENTER
UNIVERSITE LAVAL
$104,000MEDICAL EDUCATION GRANT
ENVIRONMENTAL DEFENSE FUND
$100,000ENVIRONMENTAL PRESERVATION
NEW YORK-PRESBYTERIAN HOSPITAL
$100,000MEDICAL CENTER
THE EVERGLADES FOUNDATION
$100,000ENVIRONMENTAL PRESERVATION
BOYS' CLUB OF NEW YORK
$100,000COMMUNITY OUTREACH
BOYS' CLUB OF NEW YORK
$100,000COMMUNITY OUTREACH
NPOWER
$100,000LAUNCHING DIGITAL CAREERS FOR MILITARY VETERANS AND YOUNG ADULTS FROM UNDERSERVED COMMUNITIES
ACUMEN FUND INC
$100,000PROMOTION OF BUSINESS TO CREATE A GLOBAL COMMUNITY OF EMERGING LEADERS
NORTH SHORE LAND ALLIANCE
$50,000ENVIRONMENTAL PRESERVATION
COLBY COLLEGE
$50,000EDUCATION
HOSPITAL FOR SPECIAL SURGERY
$50,000BIOMEDICAL RESEARCH
AMERICAN ACADEMY OF ACHIEVEMENT
$50,000EDUCATION
UNITED RECOVERY FUND
$50,000PROVIDE SUPPORT FOR PEOPLE AFFECTED BY SUBSTANCE USE DISORDER AND INCARCERATION
WORLD WILDLIFE FUND INC
$50,000NATURAL RESOURCE AND WILDLIFE CONSERVATION AND PROTECTION
CDP NORTH AMERICA
$50,000ENVIRONMENTAL PRESERVATION
AMERICAN ACADEMY OF ACHIEVEMENT
$50,000EDUCATION
THE NATURE CONSERVANCY
$50,000LAND AND WATER CONSERVATION
MASSACHUSETTS GENERAL HOSPITAL
$50,000MEDICAL CENTER
EPISCOPAL HIGH SCHOOL
$50,000EDUCATION
COMMUNITY FOUNDATION FOR NANTUCKET
$50,000COMMUNITY AND ECONOMIC DEVELOPMENT FOR THE NANTUCKET AREA
HARLEM CHILDREN'S ZONE
$50,000SOCIAL SERVICES
MEMORIAL SLOAN KETTERING CANCER CENTER
$50,000CANCER RESEARCH
CERES
$50,000ACCELERATING THE TRANSITION TO A CLEANER, MORE JUST, AND SUSTAINABLE ECONOMY
VIRGINIA EPISCOPAL SCHOOL
$30,000EDUCATION
THE CASSANDRA AWARD FOUNDATION
$25,000CREATE AWARENESS FOR CREDIBLE WARNINGS
EPISCOPAL CHARITIES
$25,000COMMUNITY OUTREACH
COUNCIL FOR ECONOMIC EDUCATION
$25,000SUPPORT ECONOMIC LITERACY AND FINANCIAL EDUCATION
CLEVELAND CLINIC MARTIN HEALTH
$25,000PATIENT HEALTHCARE, RESEARCH, AND EDUCATION OF HEALTHCARE PROVIDERS
COLBY COLLEGE
$25,000EDUCATION
GRENVILLE BAKER BOYS & GIRLS CLUB
$25,000COMMUNITY OUTREACH
NYU LANGONE HEALTH (FACES)
$25,000EPILEPSY RESEARCH, PATIENT CARE, AND SUPPLEMENTARY PROGRAMS
GLEN COVE BOYS AND GIRLS CLUB AT LINCOLN HOUSE
$25,000COMMUNITY OUTREACH
COLLEGE TRACK
$25,000EDUCATION
JUPITER MEDICAL CENTER FOUNDATION
$25,000MEDICAL CENTER
THE BANNER LAKE CLUB
$25,000COMMUNITY OUTREACH
FDNY FOUNDATION
$25,000FIRST RESPONDER SUPPORT
CIA OFFICERS MEMORIAL FOUNDATION
$25,000ASSIST SURVIVORS AND DEPENDENTS OF CIA OFFICERS
SUCCESS ACADEMY
$25,000EDUCATION
B ROBERT WILLIAMSON JR FOUNDATION
$25,000EDUCATION
RESOLV PROVING GROUND
$25,000PROVIDE EDUCATION, TRAINING, AND FACILITIES TO VETERANS