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· Private foundation

The Epstein Parton 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.

$30k
Granted FY2025still arriving
13
Grants FY2025still arriving
5
States reached
$9k
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, FY2017 to 2025.

Education$87kScience & Tech$32kArts & Culture$5kCrime & Legal$5kCivil Rights$2kReligion$1kFood & Nutrition$520International$100
02FY2025 · 13 grants

Where the money goes

Grants by size, and the largest recipients.

$1,050
Median grant
5
States reached
$114k
Total assets
Largest grants
RecipientAmount
UC BERKELEY$8,650
UC BERKELEY$6,000
UC BERKELEY$4,000
UC BERKELEY$2,000
UC BERKELEY$2,000
ROCKY MOUNTAIN EQUALITY$1,560
AMERICAN FRIENDS OF THE BELGRADE PHILHARMONIC ORCHESTRA INC$1,050
THE NEURODIVERSITY ALLIANCE$1,049
HARVARD HILLEL$1,030
HARVARD UNIVERSITY GRADUATE SCHOOL OF EDUCATION$1,000
UC BERKELEY$700
BROOMFIELD FISH$520
AMERICAN CHEMICAL SOCIETY$200
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 (FY25–25, $520) land where the poverty rate runs at 5%, against an area that typically sits at 8%. 0% of those dollars go to grantees based in above-average-need neighborhoods. Its grants skew toward lower-need ZIPs.

area typical 8%BROOMFIELD FISH: $520 → 5%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.
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.
04

Where the work is directed

The same grants placed two ways: where each recipient sits, and where its stated purpose sends the money.

About 8% of The Epstein Parton Foundation’s grant dollars are earmarked for a different county than the recipient’s own address.

The Epstein Parton Foundationlessmore of its giving
Placed by recipient address
How this is measured
Recipient view: each grant at its grantee’s ZIP, mapped to a county. Directed view: each grant at the county its stated purpose names, falling back to the recipient’s county when the purpose names no place; US grants only. A county shows only if it carries the top 95% of that view’s dollars. Purposes are read from the funder’s own 990 grant descriptions.
03Its grantees
repeat funding

Who it funds again

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

95%of every dollar goes to organizations it has funded before.
$116k · 5 repeat orgs$6k to everyone else

5 repeat relationships: 3 still active in FY2025, 2 since wound down; 5 grantees were first funded in FY2025 (too recent to call).

How the two cohorts compare

Re-uppedFunded once

Organizations

5
3

Total granted

$116k
$390

Median revenue growth · since first grant

+14%
+81%

Still filing today

60%
67%

New vs renewed · share of each year

In FY2025, 83% of grant dollars renewed an existing relationship; $5k went to new ones.

50%100%’17’19’20’21’22’23’24’25
RenewedFirst-time

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

’17’19’20’21’22’23’24’25
Arts & CultureReligionInternationalCivil RightsHuman ServicesScience & TechOther
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

  • UB
    UC BERKELEY
    3× · 2023–2025 · $68k
  • UB
    UC BERKELEY FOUNDATION
    5× · 2017–2022 · $41k
  • VL
    VOLUNTEER LAWYERS FOR THE ARTS INC
    3× · 2022–2024 · $5k · revenue +14%

Funded once

  • CA
    CA ALUMNI CLUB OF NEW YORK
    one grant, 2019 · $190
  • AF
    AMERICAN FRIENDS OF MAGEN DAVID ADOM
    one grant, 2023 · $100 · revenue -51%
  • PB
    PUBLIC BROADCASTING OF COLORADO INCgraduated
    one grant, 2017 · $100 · revenue +81%
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
Boston Architectural College

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

—
2
American Foreign Service Association

American foreign service association (afsa) is both the principal advocate for the long-term institutional wellbeing of the professional career foreign service and responsible for safeguarding the interest of afsa members. (continued on…

—
3
National Association of College and University Attorneys

To advance the practice of higher education attorneys for the benefit of the institutions they serve.

—
4
Massachusetts Higher Education Assistance Corporation

The organization's primary exempt purpose is to provide access to and conduct activities in furtherance of higher education.

—
5
Augustana College

Rooted in the liberal arts & sciences & lutheran expression of the christian faith, & is committed to offering a challenging education that develops qualities of mind, spirit, & body necessary for a rewarding life of leadership & service…

Education
6
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
7
The Common Application Inc

The common application is a not-for-profit membership organization of over 1,100 colleges and universities across the globe committed to access, equity, and integrity in the college admission process. every year, over 1.5 million students…

Education
8
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
9
American Gas Association

American gas association's (the association) mission is to develop and advocate for informed, innovative, and durable policy that fulfills our nation's energy needs, environmental aspirations and economic potential. we are committed to…

—
10
Harvard Club of Washington Dc

To inform and enrich the intellectual lives of 20,000 alumni of harvard university in the washington, dc area and to assist harvard university with respect to applicants and undergraduates from the dc area.

Education
11
American Geophysical Union

Agu's mission is to advance and support an inclusive community of earth and space scientists and partners dedicated to discovery and solutions to societal challenges. agu seeks to catalyze discovery and solutions to scientific and societal…

Science & Tech
12
American Astronomical Society

The american astronomical society (aas), established in 1899, is the major organization of professional astronomers in north america. the basic objective of the aas is to promote the advancement of astronomy and closely related branches of…

Science & Tech
How this is measured
The grantee most central to the portfolio’s shape is Hillel Foundation of Cambridge Inc; the most unlike its peers is American Friends of the Belgrade Philharmonic Orchestra Inc. Resemblance is measured on each organization’s own IRS 990 mission text; it reflects how work is described, not its quality or impact.
05the grantee network

10 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. 10 of the 14 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.

0
Load-bearing (≥25% of a budget)
2
Early backer (in before they grew)
10/10
Grantees still filing
5/10
Grew since first funded

Where the money sits, by cause and then by grantee

UC BERKELEY: $68,350 · OtherUC BERKELEYUC BERKELEY FOUNDATION: $41,000 · OtherUC BERKELEY FOUNDATION+4 more: $3,289 · OtherPresident and Fellows of Harvard College: $11,258 · EducationPresident…VOLUNTEER LAWYERS FOR THE ARTS INC: $5,020 · Arts & Culture+1 more: $100 · Arts & CultureBOULDER PRIDE: $1,560 · Civil RightsHILLEL FOUNDATION OF CAMBRIDGE INC: $1,288 · ReligionCOMMUNITY SERVICES OF BROOMFIELD: $520 · Human ServicesAMERICAN CHEMICAL SOCIETY: $315 · Science & TechAMERICAN FRIENDS OF MAGEN DAVID ADOM: $100 · International
Other$112,639Education$11,258Arts & Culture$5,120Civil Rights$1,560Religion$1,288Human Services$520Science & Tech$315International$100

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

25%50%75%100%$10M$100Mgrantee revenue →↑ funder's share of their budgetPresident and Fellows of Harvard College: $11,258 over 7y, 0.0% of budgetVOLUNTEER LAWYERS FOR THE ARTS INC: $5,020 over 3y, 0.1% of budgetBOULDER PRIDE: $1,560 over 1y, 0.0% of budgetHILLEL FOUNDATION OF CAMBRIDGE INC: $1,288 over 2y, 0.0% of budgetEYE TO EYE INC DBA THE NEURODIVERSITY ALLIANCE: $1,049 over 1y, 0.0% of budgetCOMMUNITY SERVICES OF BROOMFIELD: $520 over 1y, 0.0% of budgetAMERICAN CHEMICAL SOCIETY: $315 over 2y, 0.0% of budgetAMERICAN FRIENDS OF MAGEN DAVID ADOM: $100 over 1y, 0.0% of budgetPUBLIC BROADCASTING OF COLORADO INC: $100 over 1y, 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.

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.

American Endowment FoundationOH9.7× affinity4 shared granteesties to 6 of 6Hover any node to trace its alignments.Compare side by side →

Open a dossier: American Endowment Foundation · Vanguard Charitable Endowment Program · Morgan Stanley Global Impact Funding Trust Inc · American Online Giving Foundation Inc · Donor Advised Charitable Giving Inc · Fidelity Investments Charitable Gift Fund · Amazonsmile 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 The Epstein Parton Foundation funds: left to right is the share of its income from government, bottom to top the share from The Epstein Parton Foundation. Bigger dots raise more.

2024
’20’21’22’23’24’25
no gov · 10%0%1%3%5%funder's share of their income ↑0%4%8%11%15%share of the org’s income from government →median 7%
  • President and Fellows of Harvard College: 7% of income from government
no gov moneyreceives it· size = income
1get no government money at all
1report government grants on their 990 we could not trace to a source (not plotted)
0rely on government for over half their income
⤢ axis zoomed · 0–15%
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 The Epstein Parton Foundation?

Find your warmest path to The Epstein Parton 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 14 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 2025, released 2025. Filings run roughly 12 to 24 months behind; figures are dated accordingly.

Source object · view filing

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