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· Private foundation

Audrey and Martin Gruss Foundation

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.

$46M
Granted FY2020
77
Grants FY2020
9
States reached
$37M
Largest
01What you fundRead
02Your fieldRead
03Through PlinthRead
01What you fund
0189% classified

What you funded, over time

Every grant placed by its stated purpose and the recipient’s mission, by year — across FY2020–2025.

Philanthropy$42MArts & Culture$2.2MEducation$546kHealth$213kHuman Services$138kEnvironment$30kYouth Development$18kAnimals$8kOther$0
02FY2020 · 77 grants

Where the money goes

Your grants by size, and where they go.

By grant size · FY2020

  • Under $10k48 grants · $154k
  • $10k–50k17 grants · $357k
  • $50k–250k8 grants · $785k
  • $250k+4 grants · $44M
$5,000
Median grant
9
States reached
$26M
Total assets
Largest grants
RecipientAmount
GREAT KANSAS CITY COMMUNITY FOUNDATION$37,471,419
SCHWAB CHARITABLE FUND$2,500,000
LAWRENCEVILLE FUND$2,171,428
LINCOLN CENTER FOR THE PERFORMING ARTS$2,000,000
CENTER FOR INITIATIVES IN JEWISH EDUCATION$200,000
THE NIGHTINGALE-BAMFORD SCHOOL$200,000
THE WATERMILL CENTER$117,401
LAWRENCEVILLE FUND$60,000
METROPOLITAN MUSEUM OF ART$57,982
MOUNT SINAI HEALTH SYSTEM$50,000
NATIONAL INSTITUTE FOR REPRODUCTIVE HEALTH$50,000
CENTER FOR INITIATIVES IN JEWISH EDUCATION$50,000
MELANOMA RESEARCH ALLIANCE FOUNDATION$49,500
SOUTHAMPTON GARDEN CLUB$25,000
BYRD HOFFMAN WATER MILL FOUNDATION$25,000
02Your field

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.

1
Boston Architectural College

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

—
2
National Academy of Design

The mission of the national academy of design is to promote the fine arts in america through exhibition and education.

Education
3
Rhode Island School of Design

The mission of rhode island school of design, through its college and museum,is to educate its students and the public in the creation and (see schedule o)appreciation of works of art and design, to discover and transmit knowledge and to…

Education
4
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
5
The Pierpont Morgan Library

The Morgan Library & Museum celebrates and shares the history and process of human creativity from antiquity to the present day through the preservation, study, and interpretation of a dynamic and growing collection.

Education
6
New York School of Interior Design

New york school of interior design provides the most innovative, immersive, and transformative interior design education in the world, demonstrating the impact of professionally designed interiors on the health, happiness, and well-being…

Education
7
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
8
The Brooklyn Institute of Arts and Sciences

The mission of the brooklyn institute of arts and sciences, d/b/a brooklyn museum (the "museum") is to bring people together through art and experiences that inspire celebration, compassion, courage, and the will to act. (see schedule o).

Arts & Culture
9
The Frick Collection

The Frick Collection (the "Collection") operates an internationally recognized art museum and library program for the inspiration and enjoyment of the public and for the advancement of the study of fine arts and kindred subjects.

—
10
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.

—
11
The Paris Review Foundation Inc

The mission of the organization is to foster the development of creative individuals as writers and artists and to promote public appreciation of excellence in the literary and graphic arts by publishing a magazine containing fiction,…

Education
12
Manhattanville University

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

Education

For reference, the grantee most central to the portfolio’s shape is French Heritage Society Inc and the most unlike its peers is Southampton Rose Society. 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.

← shrinkinggrowing →↓ leaning in → pulling backsteadyLocal History MuseumsYouth Development CentersFaith-Based Liberal Arts Co…Education Equity InitiativesCommunity Arts CentersCommunity Theater CompaniesChildhood Cancer SupportCommunity Hospital SystemsPregnancy Support CentersEnvironmental Advocacy and …Government Accountability &…Charter and Independent Sch…Volunteer Fire & RescueAnimal Rescue and Shelter
the sector your giving your giving is ahead of the sector the sector’s ahead of you· dot size = how much the theme matters to each side
Ordered by the change in your giving — leaning in on top, pulling back at the bottom. The bar between the two dots is how out of step you are with the sector. Hover any row for detail.

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 43 years old; the field is 16. You back the established end — and your money leans older still.

THE FIELDby orgYOUR GRANTEESby number22%2%<5yr14%5%5–10yr19%14%10–20yr16%23%20–35yr13%26%35–55yr16%30%55yr+
THE FIELDby orgYOUR MONEYby value22%0%<5yr14%1%5–10yr19%7%10–20yr16%48%20–35yr13%2%35–55yr16%42%55yr+

The field is 22% startups (under 5 years old) — 2% of your grantees by number, and just 0% of your money.

Closures · last 5 years

The orgs you fund almost never close — 0.0% lost their exemption, against 13% of the field you don’t fund.

orgs you fund
0.0%0/47
the rest of the field
13%
240,396/1,819,518

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.

03the grantee network

46 grantees tracked through their own filings, 2017–2026.

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 2017–2026, not grant rows in a single year — so this will not match the grant count on the cover. 46 of the 64 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.

1
Load-bearing (≥25% of a budget)
11
Early backer (in before they grew)
46/46
Grantees still filing
38/46
Grew since you first funded

Where your money sits — by cause, then by grantee

GREAT KANSAS CITY COMMUNITY FOUNDATION — $37,471,419 · OtherGREAT KANSAS CITY COMMUNITY FOUNDATIONLAWRENCEVILLE FUND — $2,231,428 · OtherLAWRENCEVILLE FUND+34 more — $366,181 · OtherDONOR ADVISED CHARITABLE GIVING INC — $2,500,000 · Philanthropy+2 more — $30,000 · PhilanthropyLINCOLN CENTER FOR THE PERFORMING ARTS INC — $2,000,000 · Arts & Culture+11 more — $164,780 · Arts & CultureCENTER FOR INITIATIVES IN JEWISH EDUCATION — $250,000 · EducationTHE NIGHTINGALE-BAMFORD SCHOOL — $200,000 · EducationTrustees of Tufts College — $25,000 · Education+4 more — $20,000 · EducationMOUNT SINAI HEALTH SYSTEM INC — $50,000 · Human ServicesLENOX HILL NEIGHBORHOOD HOUSE INC — $20,780 · Human ServicesMELANOMA RESEARCH ALLIANCE FOUNDATION — $49,500 · HealthKATHI KOLL FOUNDATION — $6,000 · HealthTHE SOUTHAMPTON HOSPITAL FOUNDATION INC — $5,000 · HealthNATIONAL INSTITUTE FOR REPRODUCTIVE HEALTH INC — $50,000 · Civil Rights
Other$40,069,028Philanthropy$2,530,000Arts & Culture$2,164,780Education$495,000Human Services$70,780Health$60,500Civil Rights$50,000

Each org by its size and your share of it — top-left is where you’re load-bearing

25%50%75%100%$100k$1.0M$10M$100Mgrantee revenue →↑ your share of their budgetDONOR ADVISED CHARITABLE GIVING INC — $2,500,000 over 1y, 0.1% of budgetLINCOLN CENTER FOR THE PERFORMING ARTS INC — $2,000,000 over 1y, 1.0% of budgetCENTER FOR INITIATIVES IN JEWISH EDUCATION — $250,000 over 1y, 5.7% of budgetTHE NIGHTINGALE-BAMFORD SCHOOL — $200,000 over 1y, 0.5% of budgetMETROPOLITAN MUSEUM OF ART — $57,982 over 1y, 0.0% of budgetMOUNT SINAI HEALTH SYSTEM INC — $50,000 over 1y, 0.1% of budgetNATIONAL INSTITUTE FOR REPRODUCTIVE HEALTH INC — $50,000 over 1y, 0.9% of budgetMELANOMA RESEARCH ALLIANCE FOUNDATION — $49,500 over 1y, 0.6% of budgetBYRD HOFFMAN WATER MILL FOUNDATION — $27,500 over 1y, 0.5% of budgetNOVO MUNDO FOUNDATION — $25,000 over 1y, 35% of budgetTrustees of Tufts College — $25,000 over 1y, 0.0% of budgetTHE SOUTHAMPTON GARDEN CLUB INC — $25,000 over 1y, 23% of budgetMuseum of Modern Art — $24,200 over 1y, 0.0% of budgetLENOX HILL NEIGHBORHOOD HOUSE INC — $20,780 over 1y, 0.1% of budgetCHECKERBOARD FOUNDATION INC — $15,000 over 1y, 4.8% of budgetThe Preservation Foundation of Palm Beach Inc — $11,600 over 1y, 0.6% of budgetHARLEM ACADEMY — $10,000 over 1y, 0.1% of budgetALZHEIMER'S DRUG DISCOVERY FOUNDATION — $9,880 over 1y, 0.0% of budgetSOLOMON R GUGGENHEIM FOUNDATION — $8,484 over 1y, 0.0% of budgetANN NORTON SCULPTURE GARDENS INC — $6,000 over 1y, 0.4% of budgetNORTON MUSEUM OF ART INC — $6,000 over 1y, 0.0% of budgetTHE PARRISH ART MUSEUM INC — $5,500 over 1y, 0.1% of budgetGlades Academy Foundation Inc — $5,000 over 1y, 0.6% of budgetNEW YORK BOTANICAL GARDEN — $5,000 over 1y, 0.0% of budgetThe Palm Beach Police and Fire Foundation Inc — $5,000 over 1y, 0.2% of budgetTHE SOUTHAMPTON HOSPITAL FOUNDATION INC — $5,000 over 1y, 0.0% of budgetPebble Beach Company Foundation — $5,000 over 1y, 0.1% of budgetTHE HISTORICAL SOCIETY OF PALM BEACH COUNTY INC — $5,000 over 1y, 0.5% of budgetTHE BREAST CANCER RESEARCH FOUNDATION INC — $5,000 over 1y, 0.0% of budgetTHE LORD'S PLACE INC — $5,000 over 1y, 0.0% of budgetNATIONAL REVIEW INSTITUTE — $5,000 over 1y, 0.1% of budgetFRENCH HERITAGE SOCIETY INC — $5,000 over 1y, 0.3% of budgetPALM BEACH ATLANTIC UNIVERSITY INC — $4,000 over 1y, 0.0% of budgetANIMAL RESCUE FUND OF THE HAMPTONS INC — $3,200 over 1y, 0.1% of budgetTHE VIVIAN BEAUMONT THEATERINC D/B/A LINCOLN CENTER THEATER — $2,514 over 1y, 0.0% of budgetPeggy Adams Animal Rescue League of the Palm Beaches Inc — $2,300 over 1y, 0.0% of budgetBOYS & GIRLS CLUB OF PBC — $2,000 over 1y, 0.0% of budgetMEDECINS SANS FRONTIERES USA INC — $1,000 over 1y, 0.0% of budgetSCOA INC — $1,000 over 1y, 0.1% of budgetSOUTHAMPTON ASSOCIATION INC — $1,000 over 1y, 0.8% of budgetTHE ACADEMY FOR TEACHERS INC — $1,000 over 1y, 0.1% of budgetPalm Beach Civic Association Inc — $1,000 over 1y, 0.1% of budgetEAST HAMPTON HISTORICAL SOCIETY INC — $500 over 1y, 0.1% of budgetSOUTHAMPTON ROSE SOCIETY — $500 over 1y, 0.9% of budget
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.

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.

Jewish Communal FundCathy and Christopher…Jaf FoundationPaulson Family Founda…The William H Pitt Fo…Earle I Mack Foundati…Daniel M Neidich & Br…The Ayco Charitable F…Morgan Stanley Global…National Philanthropi…American Endowment Fo…Vanguard Charitable E…
Jewish Communal FundNY16.9× affinity8 shared granteesties to 11 of 11Hover any node to trace its alignments.Compare side by side →

Open a dossier: Jewish Communal Fund · Cathy and Christopher Lawrence Charitable Trust · Jaf Foundation · Paulson Family Foundation · The William H Pitt Foundation Inc · Earle I Mack Foundation Inc · Daniel M Neidich & Brooke Garber Foundation · The Ayco Charitable Foundation · Morgan Stanley Global Impact Funding Trust Inc · National Philanthropic Trust · American Endowment Foundation · Vanguard Charitable Endowment Program

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.

03Through Plinth

Warm introductions · Powered by PlinthPlus

How do I get to Audrey and Martin Gruss Foundation?

Find your warmest path to Audrey and Martin Gruss 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 directly from IRS e-file XML — your own 990/990-PF and the multi-year returns of the 64 grantees we resolved across every year we hold, several hundred filings in all (a different count from the grant rows on the cover, which are one fiscal year)— each linked to its source. Grantee achievements and outcomes are each organization’s own program-service reporting (Form 990, Part III); we read these as association with sustained funding — the foundation is one of several forces — suppress low-confidence name matches rather than guess, and say so where a figure rests on a single grant or filing. Not everything on this page is a filed figure, and the difference matters. Filed is what you reported on your 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. How we build these →

Generated from your IRS Form 990-PF e-file return for fiscal year 2020, released 2020. Filings run roughly 12–24 months behind; figures are dated accordingly.

Possibly out of date. A more recent filing (FY2025) is on record and reports $4.5M of grant expense with no grantee named in the published copy. A private foundation itemizes every grant it makes, so a return carrying none has filed its list as an attachment that the public copy does not include. The figures above are therefore from FY2020, the most recent year this funder’s grantee list reached the public record.

Source object · view filing

More from the funding graph

The unnamed billions
grants reported with no recipient in the public record
The regranting layer
51% of grant dollars land in the regranting layer
The DAF merry-go-round
$9.7B circulates between donor-advised funds
The camps
funders cluster by geography, not ideology
By state
where grant money is based, and what stays home
State money flows
the interactive map of money crossing state lines