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Plinth
Foundation Dossiers
Plinth

· Private foundation

Frank and Deenie Brosens 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.

$765k
Granted FY2024still arriving
23
Grants FY2024still arriving
10
States reached
$137k
Largest
01What you fundRead
02Your edgeRead
03Your fieldRead
01What you fund
0191% classified

What you funded, over time

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

Arts & Culture$632kEducation$298kSocial Science$222kRecreation & Sports$181kHealth$122kInternational$75kCommunity Improvement$30kHuman Services$16kOther$0
02FY2024 · 23 grants

Where the money goes

Your grants by size, and where they go.

The 23 grants below total $628,567 — the rows itemised in this filing. The $764,567 headline is the total grant expense reported on the return, so the remaining $136,000 is giving the schedule does not break out: grants under the $5,000 itemisation floor, grants to individuals, and grants reported on other schedules. Every figure below describes the itemised rows only.

By grant size · FY2024

  • Under $10k10 grants · $20k
  • $10k–50k7 grants · $147k
  • $50k–250k6 grants · $462k
$12,300
Median grant
10
States reached
$19M
Total assets
Largest grants
RecipientAmount
Brooklyn Museum$136,667
Barnes Foundation$100,000
Peterson Institute for International Economics$75,000
Memorial Sloan Kettering Cancer Center$50,000
Barnes Foundation$50,000
Hospital for Special Surgery$50,000
International Tennis Hall Of Fame$32,500
Junior Tennis Champions Center$25,000
The University of Chicago$25,000
Council On Foreign Relations$25,000
International Tennis Hall Of Fame$17,500
Economic Club of New York$12,300
Institute of Contemporary Art$10,000
College Squash Association$5,000
Miss Fran's Helping Hands$5,000
02Your edge
repeat funding

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.

65%of every dollar goes to organizations you’ve funded before.
$1.0M · 16 repeat orgs$546k to everyone else

And the relationships you keep tend to grow: grantees you re-up on have seen median revenue of +17% since the first grant, against +8% for the ones you funded once.

16 repeat relationships — 10 still active in FY2024, 6 since wound down; 10 grantees were first funded in FY2024 (too recent to call).

How the two cohorts compare

Re-uppedFunded once

Organizations

16
23

Total granted

$1.0M
$245k

Median revenue growth · since first grant

+17%
+8%

Still filing today

63%
74%

New vs renewed · share of each year

In FY2024, 52% of grant dollars renewed an existing relationship; $301k went to new ones.

50%100%’22’23’24
RenewedFirst-time

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

’22’23’24
EducationArts & CultureRecreation & SportsPhilanthropyHealthHuman ServicesOther

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

  • IT
    INTERNATIONAL TENNIS HALL OF FAME INCORPORATED
    3× · 2022–2024 · $125k · revenue +9%
  • TE
    THE ECONOMIC CLUB OF NEW YORK
    2× · 2022–2024 · $47k · revenue +40%
  • NY
    NEW YORK CARES INC
    2× · 2022–2023 · $5k · revenue +17%

Funded once

  • WS
    WHITE STAR EDUCATION FOUNDATION
    one grant, 2023 · $100k · revenue -56%
  • The Trustees of Princeton University
    one grant, 2023 · $45k · revenue -11%
  • TE
    The Economic Club of NY
    one grant, 2023 · $30k

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

03Your 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
Institute for Advanced Study - Louis Bamberger & Mrs Felix Fuld Foundation

The institute for advanced study (the institute) is one of the world's leading centers for theoretical research and intellectual inquiry. see schedule o.

Science & Tech
2
New York University

Nyu is a private university with approximately 60,000 matriculating students in 20 schools and institutes. nyu's primary missions are education, research and scholarship, and patient care.

Education
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
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
6
Manhattan School of Music

Manhattan school of music is deeply committed to excellence in education, performance, and creative activity; to the humanity of the school's environment; and to the cultural enrichment of the larger community. a premiere international…

Arts & Culture
7
Masters School

The masters school celebrates active participation, deep understanding, and meaningful connection. a community of diverse individuals, we gather to learn, to strive, to dare, to do - to be a power for good in the world.

—
8
New York Hall of Science

Nysci's mission is to nurture generations of passionate learners, critical thinkers, and active citizens through design make play - an approach to learning and engagement that is deeply rooted in research on stem learning and guides the…

Arts & Culture
9
Dickinson College

Dickinson college provides a useful, innovative and interdisciplinary education in the liberal arts and sciences to prepare students to lead rich and fulfilling lives of engaged global citizenship

Education
10
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
11
Phillips Exeter Academy

Unite goodness and knowledge and inspire youth from every quarter to lead purposeful lives. [text in quotations is taken from the academy's deed of gift, drafted in 1781] knowledge and goodness "above all, it is expected that the attention…

Education
12
Bentley University

Organization's mission bentley university believes good business can impact more than the bottom line - it can change the world. bentley is a community of future business leaders who will deliver value in the marketplace and lasting…

Education

For reference, the grantee most central to the portfolio’s shape is New York Foundling and the most unlike its peers is White Star Education Foundation. 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 backsteadyPrivate Grantmaking Foundat…Government Accountability &…Faith-Based Liberal Arts Co…Community Theater CompaniesChristian Outreach Ministri…Charter and Independent Sch…Child Abuse Advocacy Servic…United Way AffiliatesChildhood Cancer SupportCommunity Hospital SystemsEnvironmental Advocacy and …Youth Sports ProgramsLocal History MuseumsVeteran Support Services
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 47 years old; the field is 18. You back the established end — and your money leans older still.

THE FIELDby orgYOUR GRANTEESby number19%0%<5yr14%9%5–10yr20%15%10–20yr19%12%20–35yr13%27%35–55yr16%38%55yr+
THE FIELDby orgYOUR MONEYby value19%0%<5yr14%1%5–10yr20%26%10–20yr19%3%20–35yr13%13%35–55yr16%57%55yr+

The field is 19% startups (under 5 years old) — 0% 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 10% of the field you don’t fund.

orgs you fund
0.0%0/37
the rest of the field
10%
11,858/120,723

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

36 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. 36 of the 50 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.

0
Load-bearing (≥25% of a budget)
1
Early backer (in before they grew)
36/36
Grantees still filing
28/36
Grew since you first funded

Where your money sits — by cause, then by grantee

THE BROOKLYN INSTITUTE OF ARTS AND SCIENCES — $453,334 · Arts & CultureTHE BROOKLYN INSTITUTE OF ARTS AND SCIENCESTHE BARNES FOUNDATION — $150,000 · Arts & CultureTHE BARNES FOUNDATION+5 more — $28,500 · Arts & CulturePeterson Institute For International Econ — $100,000 · OtherPeterson Institute Fo…Hospital for Special Surgery — $55,000 · OtherHospital for Special …Memorial Sloan Kettering Cancer Center — $52,000 · OtherMemorial Sloan Ketter…The Economic Club of NY — $30,250 · OtherThe Economic Club of …New York Junior Tennis & Learning — $12,000 · OtherSONGS OF LOVE FOUNDATION — $10,000 · Other+17 more — $36,700 · Other+17 moreWARRIOR-SCHOLAR PROJECT FOUNDATION — $100,000 · EducationWARRIOR-SCHOLA…The Trustees of Princeton University — $45,000 · EducationThe Trustees o…University of Chicago — $25,000 · EducationUniversity of …THE TRUSTEES OF COLUMBIA UNIVERSITY IN THE CITY OF NEW YORK — $10,000 · Education+6 more — $17,100 · Education+6 moreINTERNATIONAL TENNIS HALL OF FAME INCORPORATED — $125,000 · Recreation & SportsINTERNATION…JUNIOR TENNIS CHAMPIONS CENTER INC — $25,000 · Recreation & SportsJUNIOR TENN…CENTRAL PARK CONSERVANCY INC — $10,000 · Recreation & SportsCENTRAL PAR…+1 more — $1,000 · Recreation & SportsPETER G PETERSON INSTITUTE FOR INTERNATIONAL ECONOMICS — $75,000 · Social ScienceTHE ECONOMIC CLUB OF NEW YORK — $47,300 · Social ScienceWHITE STAR EDUCATION FOUNDATION — $100,000 · PhilanthropyNEW YORK CARES INC — $5,000 · Philanthropy+1 more — $1,000 · PhilanthropyCOUNCIL ON FOREIGN RELATIONS INC — $75,000 · International
Arts & Culture$631,834Other$295,950Education$197,100Recreation & Sports$161,000Social Science$122,300Philanthropy$106,000International$75,000

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

25%50%75%100%$1.0M$10M$100Mgrantee revenue →↑ your share of their budgetTHE BROOKLYN INSTITUTE OF ARTS AND SCIENCES — $453,334 over 3y, 0.4% of budgetTHE BARNES FOUNDATION — $150,000 over 1y, 0.6% of budgetINTERNATIONAL TENNIS HALL OF FAME INCORPORATED — $125,000 over 3y, 0.3% of budgetWHITE STAR EDUCATION FOUNDATION — $100,000 over 1y, 4.9% of budgetWARRIOR-SCHOLAR PROJECT FOUNDATION — $100,000 over 2y, 0.7% of budgetCOUNCIL ON FOREIGN RELATIONS INC — $75,000 over 3y, 0.0% of budgetPETER G PETERSON INSTITUTE FOR INTERNATIONAL ECONOMICS — $75,000 over 1y, 0.5% of budgetTHE ECONOMIC CLUB OF NEW YORK — $47,300 over 2y, 1.0% of budgetThe Trustees of Princeton University — $45,000 over 1y, 0.0% of budgetJUNIOR TENNIS CHAMPIONS CENTER INC — $25,000 over 1y, 0.2% of budgetUniversity of Chicago — $25,000 over 1y, 0.0% of budgetSONGS OF LOVE FOUNDATION — $10,000 over 1y, 1.6% of budgetTHE VIVIAN BEAUMONT THEATERINC D/B/A LINCOLN CENTER THEATER — $10,000 over 1y, 0.0% of budgetTHE TRUSTEES OF COLUMBIA UNIVERSITY IN THE CITY OF NEW YORK — $10,000 over 1y, 0.0% of budgetTHE INSTITUTE OF CONTEMPORARY ART INC — $10,000 over 1y, 0.1% of budgetCENTRAL PARK CONSERVANCY INC — $10,000 over 1y, 0.0% of budgetNEW YORK CARES INC — $5,000 over 2y, 0.0% of budgetTHE LEARNING ALLIANCE INC — $5,000 over 1y, 0.1% of budgetHATUA NETWORKINC — $5,000 over 1y, 0.7% of budgetFACING HISTORY & OURSELVES INC — $4,500 over 2y, 0.0% of budgetSCAN-HARBOR INC — $2,500 over 1y, 0.0% of budgetNEW YORK FOUNDLING — $2,500 over 1y, 0.0% of budgetBARNARD COLLEGE — $2,500 over 1y, 0.0% of budgetALEXANDER TWILIGHT ACADEMY INC — $2,500 over 1y, 0.1% of budgetLINCOLN CENTER FOR THE PERFORMING ARTS INC — $2,000 over 1y, 0.0% of budgetTHE HASTY PUDDING - INSTITUTE OF 1770 INC — $2,000 over 2y, 0.1% of budgetBELMONT HILL SCHOOL INC — $1,100 over 2y, 0.0% of budgetFLOAT HOPE OF INDIAN RIVER COUNTY INC — $1,000 over 1y, 0.3% of budgetTHE MARDY FISH CHILDREN'S FOUNDATION INC — $1,000 over 1y, 0.2% of budgetCENTER FOR HEARING AND COMMUNICATION — $1,000 over 2y, 0.0% of budgetUNITED WAY OF WESTCHESTER AND PUTNAM — $1,000 over 1y, 0.0% of budgetMUSCULAR DYSTROPHY ASSOCIATION INC — $1,000 over 1y, 0.0% of budgetWildlife Conservation Society — $1,000 over 1y, 0.0% of budgetFoundation for Morristown Medical Center — $1,000 over 1y, 0.0% of budgetMOREHOUSE SCHOOL OF MEDICINE — $1,000 over 1y, 0.0% of budgetST BARNABAS HOSPITAL — $1,000 over 1y, 0.0% 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.

The Goldman Sachs Cha…Jewish Communal FundThe New York Communit…National Philanthropi…Vanguard Charitable E…Morgan Stanley Global…American Endowment Fo…American Online Givin…Donor Advised Charita…Fidelity Investments …Amazonsmile Foundation
The Goldman Sachs Charitable Gift FundNY20× affinity8 shared granteesties to 10 of 10Hover any node to trace its alignments.Compare side by side →

Open a dossier: The Goldman Sachs Charitable Gift Fund · Jewish Communal Fund · The New York Community Trust · National Philanthropic Trust · Vanguard Charitable Endowment Program · Morgan Stanley Global Impact Funding Trust Inc · American Endowment Foundation · American Online Giving Foundation Inc · Donor Advised Charitable Giving Inc · Fidelity Investments Charitable Gift Fund · Amazonsmile 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.

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 50 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 2024, released 2024. 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 $670k 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 FY2024, 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