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Plinth

· Private foundation

The Thomas & Janet Montag Family 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.

$3.4M
Granted FY2025still arriving
14
Grants FY2025still arriving
6
States reached
$1.2M
Largest
01What you fundRead
02Your edgeRead
03Your fieldRead
01What you fund
0194% classified

What you funded, over time

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

International$2.6MEnvironment$1.9MRecreation & Sports$1.1MEducation$934kHealth$573kArts & Culture$351kCivil Rights$150kYouth Development$115kOther$0
02FY2025 · 14 grants

Where the money goes

Your grants by size, and where they go.

The 14 grants below total $3,180,400 — the rows itemised in this filing. The $3,355,400 headline is the total grant expense reported on the return, so the remaining $175,000 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 · FY2025

  • Under $10k4 grants · $20k
  • $10k–50k2 grants · $35k
  • $50k–250k5 grants · $400k
  • $250k+3 grants · $2.7M
$50,000
Median grant
6
States reached
$30M
Total assets
Largest grants
RecipientAmount
New York Botanical Garden$1,200,000
Asia Foundation$1,000,000
Asia Foundation$525,000
Equality Now Inc$150,000
School of Leadership-Afghanistan Inc$100,000
Columbia University in the City of New York$50,000
Freedom House Inc$50,000
Omega Institute for Holistic Studies Inc$50,000
Riverdale Country School Inc$25,000
Global Fund for Mental Health Inc$10,000
Second Stage Theatre$8,400
Honolulu Biennial Foundation$5,000
Head for the Cure$5,000
World Monuments Fund Inc$2,000
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.

84%of every dollar goes to organizations you’ve funded before.
$6.4M · 13 repeat orgs$1.2M to everyone else

And the relationships you keep tend to grow: grantees you re-up on have seen median revenue of +4% since the first grant, against 0% for the ones you funded once.

13 repeat relationships — 7 still active in FY2025, 6 since wound down; 5 grantees were first funded in FY2025 (too recent to call).

How the two cohorts compare

Re-uppedFunded once

Organizations

13
35

Total granted

$6.4M
$974k

Median revenue growth · since first grant

+4%
0%

Still filing today

92%
66%

New vs renewed · share of each year

In FY2025, 93% of grant dollars renewed an existing relationship; $212k went to new ones.

50%100%’22’23’24’25
RenewedFirst-time

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

’22’23’24’25
EducationArts & CultureHealthInternationalEnvironmentHuman 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

  • TA
    THE ASIA FOUNDATION
    4× · 2022–2025 · $2.6M · revenue +14%
  • NY
    NEW YORK BOTANICAL GARDEN
    3× · 2023–2025 · $1.7M · revenue +43%
  • Northwestern University
    3× · 2022–2024 · $1.1M · revenue +4%

Funded once

  • BG
    BOTANICAL GARDEN
    one grant, 2022 · $150k
  • TO
    TRUSTEES OF SMITH COLLEGE
    one grant, 2022 · $100k
  • NY
    New York University Langone Health
    one grant, 2023 · $100k

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
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
2
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
3
American Museum of Natural History

The museum's mission statement is: "to discover, interpret, and disseminate - through scientific research and education - knowledge about human cultures, the natural world, and the universe."

Arts & Culture
4
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
5
Weizmann Institute of Science

The weizmann institute of science, located in rehovot, israel, is one of the worlds top-ranking, multidisciplinary research institutions. at any one time, several thousand scientists, staff and students are involved in hundreds of research…

Science & Tech
6
Ie New York College

(see schedule o)

Education
7
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
8
International Life Sciences Institute

Ilsi is a global, nonprofit federation dedicated to generating and advancing emerging science and groundbreaking research to ensure foods are safe, nutritious and sustainable, and that they improve planetary and human health and well-being…

Science & Tech
9
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.

—
10
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
11
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
12
Boston Architectural College

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

—

For reference, the grantee most central to the portfolio’s shape is The Asia Foundation and the most unlike its peers is Brain Fitness 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 backsteadyEnvironmental Advocacy and …Childhood Cancer SupportCharter and Independent Sch…Government Accountability &…Girls Stem Education Progra…Local History MuseumsFood Pantries and AssistanceVeteran Support ServicesYouth Sports ProgramsChristian Outreach Ministri…Community Theater CompaniesDomestic Violence and Sexua…Community Hospital SystemsFaith-Based Liberal Arts Co…
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 29 years old; the field is 18. You back the established end — and your money leans older still.

THE FIELDby orgYOUR GRANTEESby number19%7%<5yr14%5%5–10yr20%20%10–20yr19%27%20–35yr13%17%35–55yr16%24%55yr+
THE FIELDby orgYOUR MONEYby value19%1%<5yr14%1%5–10yr20%4%10–20yr19%12%20–35yr13%4%35–55yr16%78%55yr+

The field is 19% startups (under 5 years old) — 7% of your grantees by number, and just 1% 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%0/45
the rest of the field
10%
11,858/120,715

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

44 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. 44 of the 57 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.

3
Load-bearing (≥25% of a budget)
4
Early backer (in before they grew)
44/44
Grantees still filing
23/44
Grew since you first funded

Where your money sits — by cause, then by grantee

THE ASIA FOUNDATION — $2,580,000 · InternationalTHE ASIA FOUNDATIONEquality Now Inc — $150,000 · InternationalEquality Now Inc+3 more — $65,000 · InternationalNEW YORK BOTANICAL GARDEN — $1,725,000 · EnvironmentNEW YORK BOTANICAL GARDE…+3 more — $30,000 · EnvironmentNorthwestern University — $1,100,737 · Recreation & SportsNorthwestern Un…+2 more — $15,000 · Recreation & SportsTHE BOARD OF TRUSTEES OF THE LELAND STANFORD JUNIOR UNIVERSITY — $343,000 · EducationTHE BOARD O…LONGHOUSE RESERVE — $125,000 · EducationLONGHOUSE R…OMEGA INSTITUTE FOR HOLISTIC STUDIES INC — $100,000 · EducationOMEGA INSTI…THE TRUSTEES OF COLUMBIA UNIVERSITY IN THE CITY OF NEW YORK — $100,000 · EducationTHE TRUSTEE…RIVERDALE COUNTRY SCHOOL INC — $75,000 · EducationRIVERDALE C…GLOBAL CITIZENS INITIATIVE INC — $45,000 · EducationGLOBAL CITI…WOMENX INC — $30,000 · Education+1 more — $5,000 · EducationSCHOOL OF LEADERSHIP-AFGHANISTAN INC — $200,000 · OtherSCHOOL OF LEA…BOTANICAL GARDEN — $150,000 · OtherBOTANICAL GAR…TRUSTEES OF SMITH COLLEGE — $100,000 · OtherTRUSTEES OF S…New York University Langone Health — $100,000 · OtherNew York Univ…STANFORD UNIVERSITY:HOOVER HOUSE — $50,000 · OtherSTANFORD UNIVERSITY:SIEPR — $50,000 · OtherNYU LANGONE HOSPITALS — $100,000 · OtherNYU LANGONE H…RESEARCH FOUNDATION FOR MENTAL HYGIENE INC — $75,000 · OtherRESEARCH FOUN…Bob and Rita Marley Foundation Inc — $50,000 · Other+19 more — $116,950 · Other+19 moreThe Global Fund for Mental Health Inc — $235,000 · Human ServicesJOYFUL HEART FOUNDATION — $50,000 · Human ServicesTHE IMETICS INSTITUTE INC — $50,000 · Human ServicesSESAME WORKSHOP — $100,000 · Arts & CultureTHE SECOND STAGE THEATRE INC — $78,550 · Arts & CultureTHE NEW GROUP INC — $25,000 · Arts & CultureREMEMBER ME ROSE GARDEN INC — $10,000 · Arts & Culture+2 more — $7,000 · Arts & Culture
International$2,795,000Environment$1,755,000Recreation & Sports$1,115,737Education$823,000Other$991,950Human Services$335,000Arts & Culture$220,550

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 ASIA FOUNDATION — $2,580,000 over 4y, 0.5% of budgetNEW YORK BOTANICAL GARDEN — $1,725,000 over 3y, 1.0% of budgetNorthwestern University — $1,100,737 over 3y, 0.0% of budgetTHE BOARD OF TRUSTEES OF THE LELAND STANFORD JUNIOR UNIVERSITY — $343,000 over 3y, 0.0% of budgetThe Global Fund for Mental Health Inc — $235,000 over 4y, 18% of budgetSCHOOL OF LEADERSHIP-AFGHANISTAN INC — $200,000 over 2y, 1.9% of budgetLONGHOUSE RESERVE — $125,000 over 2y, 3.8% of budgetSESAME WORKSHOP — $100,000 over 3y, 0.0% of budgetOMEGA INSTITUTE FOR HOLISTIC STUDIES INC — $100,000 over 2y, 0.2% of budgetTHE TRUSTEES OF COLUMBIA UNIVERSITY IN THE CITY OF NEW YORK — $100,000 over 2y, 0.0% of budgetNYU LANGONE HOSPITALS — $100,000 over 1y, 0.0% of budgetTHE SECOND STAGE THEATRE INC — $78,550 over 4y, 0.1% of budgetRESEARCH FOUNDATION FOR MENTAL HYGIENE INC — $75,000 over 1y, 0.0% of budgetRIVERDALE COUNTRY SCHOOL INC — $75,000 over 3y, 0.0% of budgetJOYFUL HEART FOUNDATION — $50,000 over 1y, 2.5% of budgetBob and Rita Marley Foundation Inc — $50,000 over 1y, 38% of budgetTHE IMETICS INSTITUTE INC — $50,000 over 1y, 97% of budgetFREEDOM HOUSE — $50,000 over 1y, 0.1% of budgetGLOBAL CITIZENS INITIATIVE INC — $45,000 over 3y, 2.6% of budgetWOMENX INC — $30,000 over 2y, 19% of budgetTHE NEW GROUP INC — $25,000 over 1y, 0.6% of budgetAmerican Friends of Jamaica Inc — $12,500 over 1y, 0.6% of budgetJAPANESE GARDEN SOCIETY OF OREGON — $10,000 over 1y, 0.1% of budgetREMEMBER ME ROSE GARDEN INC — $10,000 over 1y, 30% of budgetAMERICAN PRAIRIE FOUNDATION — $10,000 over 1y, 0.0% of budgetNEW YORK RESTORATION PROJECT — $10,000 over 1y, 0.1% of budgetGOLDEN STATE COMMUNITY FOUNDATION — $10,000 over 1y, 0.2% of budgetALZHEIMER'S DISEASE & RELATED DISORDERS ASSOCIATION INC — $7,000 over 1y, 0.0% of budgetHUALALAI OHANA FOUNDATION — $5,000 over 1y, 0.2% of budgetRUBIN MUSEUM OF ART AKA THE SHELLEY & DONALD RUBIN CULTURAL TRUST — $5,000 over 1y, 0.1% of budgetFRIENDLY FRIDGE FOUNDATION INC — $5,000 over 1y, 8.4% of budgetTHE FOOD BASKET INC — $5,000 over 1y, 0.0% of budgetGirls Leadership Institute Inc dba Girls Leadership — $5,000 over 1y, 0.2% of budgetThe Osborn Foundation — $2,500 over 1y, 0.4% of budgetHAWAII COMMUNITY FOUNDATION — $2,500 over 1y, 0.0% of budgetCOOPERATIVE FOR ASSISTANCE AND RELIEF EVERYWHERE INC — $2,500 over 1y, 0.0% of budgetWORLD MONUMENTS FUND INC — $2,000 over 1y, 0.0% of budgetWildlife Conservation Society — $1,000 over 1y, 0.0% of budgetAMYOTROPHIC LATERAL SCLEROSIS ASSN — $500 over 1y, 0.0% of budgetLONG ISLAND BIKE CHALLENGE INC — $100 over 1y, 0.1% 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…National Philanthropi…Jewish Communal FundSilicon Valley Commun…Vanguard Charitable E…Morgan Stanley Global…Tides FoundationAmerican Endowment Fo…The Pfizer Foundation…Jpmorgan Chase Founda…Gs Donor Advised Phil…American Online Givin…
The Goldman Sachs Charitable Gift FundNY17.3× affinity7 shared granteesties to 11 of 11Hover any node to trace its alignments.Compare side by side →

Open a dossier: The Goldman Sachs Charitable Gift Fund · National Philanthropic Trust · Jewish Communal Fund · Silicon Valley Community Foundation · Vanguard Charitable Endowment Program · Morgan Stanley Global Impact Funding Trust Inc · Tides Foundation · American Endowment Foundation · The Pfizer Foundation Inc · Jpmorgan Chase Foundation · Gs Donor Advised Philanthropy Fund for Wealth Management Inc · American Online Giving Foundation Inc

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 57 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 2025, released 2025. Filings run roughly 12–24 months behind; figures are dated accordingly.

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