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MacKenzie Ryan Brumberg Foundation at a glance

· Private foundation

MacKenzie Ryan Brumberg 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.

$647k
Granted FY2025still arriving
8
Grants FY2025still arriving
4
States reached
$530k
Largest
01What it fundsRead
02The needRead
03Its granteesRead
04Its fieldRead
05Through PlinthRead
01What it funds
01100% classified

What it funded, over time

Every grant placed by its stated purpose and the recipient’s mission, by year, FY2021 to 2024.

Philanthropy$191kEducation$121kArts & Culture$61kRecreation & Sports$23kReligion$22kPublic Safety & Disaster$20kPublic Benefit$15kCivil Rights$4k
02FY2025 · 8 grants

Where the money goes

Grants by size, and the largest recipients.

By grant size · FY2025

  • Under $10k1 grant · $7k
  • $10k–50k6 grants · $110k
  • $250k+1 grant · $530k
$25,000
Median grant
4
States reached
$30M
Total assets
Largest grants
RecipientAmount
FS CHARITABLE FUND$530,000
BALLET THEATRE FOUNDATION INC$25,000
CENTRAL FUND OF ISRAEL$25,000
STANFORD LAW SCHOOL$25,000
ROUND HILL ASSOCIATION INC$12,500
UNIVERSITY OF SOUTHERN CALIFORNIA$12,500
GREENWICH RIDING & TRAILS ASSOCIATION INC$10,000
UNITED WAY OF GREENWICH INC$6,975
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:

Dollar for dollar, its grants (FY21–25) land where the poverty rate runs at 11%, against an area that typically sits at 11%. 12% of its dollars go to grantees based in above-average-need neighborhoods. Its grants skew toward lower-need ZIPs.

area typical 11%FS CHARITABLE FUND: $530k → 10%STANFORD LAW SCHOOL: $25k → 8%UNIVERSITY OF SOUTHERN CALIFORNIA: $13k → 14%CENTRAL FUND OF ISRAEL: $25k → 6%GREENWICH VOLUNTEER FIRE DEPARTMENT INC: $10k → 11%FRIENDS OF UNITED HATZALAH INC: $25k → 17%LONG ISLAND UNIVERSITY: $25k → 20%FEDERALIST SOCIETY FOR LAW & PUBLIC POLICY STUDIES: $4k → 14%ROUND HILL NURSERY SCHOOL INC: $25k → 9%STANFORD LAW SCHOOL: $20k → 8%BALLET THEATRE FOUNDATION INC: $25k → 17%ROUND HILL ASSOCIATION INC: $13k → 9%STANFORD LAW SCHOOL: $11k → 8%THE MUSEUM OF DEMOCRACY INC: $10k → 17%UNITED WAY OF GREENWICH INC: $10k → 9%ROUND HILL NURSERY SCHOOL INC: $10k → 9%ROUND HILL COMMUNITY CHURCH INC: $7k → 9%UNITED WAY OF GREENWICH INC: $7k → 9%UNITED WAY OF GREENWICH INC: $3k → 9%CHABAD LUBAVITCH OF GREENWICH INC: $10k → 9%THINK GREENWICH INC: $5k → 9%CHRIST EPISCOPAL CHURCH: $5k → 9%UJA FEDERATION OF GREENWICH: $5k → 9%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.
03Its grantees
repeat funding

Who it funds again

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

17%of every dollar goes to organizations it has funded before.
$148k · 4 repeat orgs$703k to everyone else

Grantees it renews have grown median revenue +3% since the first grant, against -5% for those funded once.

4 repeat relationships: 2 still active in FY2025, 2 since wound down; 4 grantees were first funded in FY2025 (too recent to call).

How the two cohorts compare

Re-uppedFunded once

Organizations

4
12

Total granted

$148k
$111k

Median revenue growth · since first grant

+3%
-5%

Still filing today

100%
42%

New vs renewed · share of each year

In FY2025, 3% of grant dollars renewed an existing relationship; $593k went to new ones.

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

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

’21’22’23’24’25
Arts & CulturePhilanthropyInternationalPublic Safety & DisasterPublic BenefitOther
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

  • FO
    FRIENDS OF UNITED HATZALAH INC
    2× · 2023–2024 · $61k · revenue -45%
  • RH
    ROUND HILL NURSERY SCHOOL INC
    2× · 2023–2024 · $35k · revenue -7%
  • GR
    GREENWICH RIDING & TRAILS ASSOCIATION INC
    3× · 2023–2025 · $33k · revenue +96%

Funded once

  • LI
    LONG ISLAND UNIVERSITY
    one grant, 2023 · $25k · revenue +6%
  • YU
    YALE UNIVERSITY
    one grant, 2024 · $10k
  • TM
    THE MUSEUM OF DEMOCRACY INC
    one grant, 2024 · $10k · revenue -9%
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
Georgetown University

Established in 1789 in the spirit of the new republic, the university was founded on the principle that serious and sustained discourse among people of different faiths, cultures and beliefs promotes intellectual, ethical and spiritual…

Education
2
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
3
Yale University

To improve the world through research, scholarship, education, preservation, and practice.

Education
4
New York University School of Law Foundation

The foundation, a subsidiary of new york university, fosters legal education and research at new york university's school of law by awarding scholarships, making grants for educational purposes related to law, and supporting programs of…

Education
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
Fairfield University

To establish, organize, maintain and conduct an institution for secondary, undergraduate and graduate education in the state of connecticut, and to perform such other works of education, charity and religion. see schedule o.

Education
7
Bar Ilan University in Israel Inc

Biu produces students who excel in the sciences, humanities, law, engineering, business & the arts.

—
8
University of Delaware

The university of delaware is a major research university dedicated to cultivating learning, advancing knowledge, and fostering the exchange of ideas through teaching, research and public service.

—
9
Fordham University

Fordham university, the jesuit university of new york, is committed to the discovery of wisdom and the transmission of learning, through research and through education of the highest quality. for more information, see schedule o.

Education
10
American Friends of Hebrew University Inc

Support the hebrew univ. of jerusalem, israel's foremost center of higher edu. & research.

International
11
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
12
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
How this is measured
The grantee most central to the portfolio’s shape is Uja Federation of Greenwich Inc; the most unlike its peers is Greenwich Forward Inc. Resemblance is measured on each organization’s own IRS 990 mission text; it reflects how work is described, not its quality or impact.
04the grantee network

16 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. 16 of the 23 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)
1
Early backer (in before they grew)
15/16
Grantees still filing
6/16
Grew since first funded

Where the money sits, by cause and then by grantee

FS CHARITABLE FUND: $530,000 · PhilanthropyFS CHARITABLE FUNDROUND HILL NURSERY SCHOOL INC: $35,000 · OtherROUND HILL NURSERY …GREENWICH RIDING & TRAILS ASSOCIATION INC: $32,800 · OtherGREENWICH RIDING & …LONG ISLAND UNIVERSITY: $25,000 · OtherLONG ISLAND UNIVERS…UNITED WAY OF GREENWICH INC: $19,475 · OtherUNITED WAY OF GREEN…ROUND HILL ASSOCIATION INC: $12,500 · OtherROUND HILL ASSOCIAT…YALE UNIVERSITY: $10,000 · OtherYALE UNIVERSITYYALE UNIVERSITY: $10,000 · OtherYALE UNIVERSITYCHABAD LUBAVITCH OF GREENWICH INC: $10,000 · OtherCHABAD LUBAVITCH OF…GREENWICH PROFESSIONAL FIREFIGHTERS BENEVOLENT FUND INC: $10,000 · OtherGREENWICH PROFESSIO…ROUND HILL COMMUNITY CHURCH INC: $7,000 · Other+3 more: $13,500 · Other+3 moreFIDELITY INVESTMENTS CHARITABLE GIFT FUND: $173,000 · Community ImprovementFIDELITY INVESTME…FRIENDS OF UNITED HATZALAH INC: $61,000 · Arts & CultureFRIENDS O…BALLET THEATRE FOUNDATION INC: $25,000 · Arts & CultureBALLET TH…THE MUSEUM OF DEMOCRACY INC: $10,000 · Arts & CultureTHE MUSEU…THE BOARD OF TRUSTEES OF THE LELAND STANFORD JUNIOR UNIVERSITY: $66,000 · EducationUNIVERSITY OF SOUTHERN CALIFORNIA: $12,500 · EducationCentral Fund of Israel: $25,000 · InternationalGreenwich Volunteer Fire Department Inc: $10,000 · Public Safety & DisasterGreenwich Forward INC: $5,000 · Public Benefit
Philanthropy$530,000Other$185,275Community Improvement$173,000Arts & Culture$96,000Education$78,500International$25,000Public Safety & Disaster$10,000Public Benefit$5,000

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

25%50%75%100%$100k$1.0M$10M$100Mgrantee revenue →↑ funder's share of their budgetFIDELITY INVESTMENTS CHARITABLE GIFT FUND: $173,000 over 1y, 0.0% of budgetTHE BOARD OF TRUSTEES OF THE LELAND STANFORD JUNIOR UNIVERSITY: $66,000 over 4y, 0.0% of budgetFRIENDS OF UNITED HATZALAH INC: $61,000 over 2y, 0.1% of budgetROUND HILL NURSERY SCHOOL INC: $35,000 over 2y, 1.8% of budgetGREENWICH RIDING & TRAILS ASSOCIATION INC: $32,800 over 3y, 6.5% of budgetLONG ISLAND UNIVERSITY: $25,000 over 1y, 0.0% of budgetCentral Fund of Israel: $25,000 over 1y, 0.0% of budgetUNITED WAY OF GREENWICH INC: $19,475 over 3y, 0.4% of budgetUNIVERSITY OF SOUTHERN CALIFORNIA: $12,500 over 1y, 0.0% of budgetTHE MUSEUM OF DEMOCRACY INC: $10,000 over 1y, 1.9% of budgetGreenwich Volunteer Fire Department Inc: $10,000 over 1y, 6.6% of budgetGreenwich Forward INC: $5,000 over 1y, 20% of budgetUJA FEDERATION OF GREENWICH INC: $5,000 over 1y, 0.1% of budgetTHE FEDERALIST SOCIETY FOR LAW AND PUBLIC POLICY STUDIES: $3,500 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.

The Giving Bee Founda…Morgan Stanley Global…National Philanthropi…Vanguard Charitable E…Fidelity Investments …Donor Advised Charita…Amazonsmile Foundation
The Giving Bee FoundationDE15.8× affinity5 shared granteesties to 6 of 6Hover any node to trace its alignments.Compare side by side →

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

2024
’20’21’22’23’24’25
no gov · 40%1%5%11%20%funder's share of their income ↑0%5%10%15%20%share of the org’s income from government →
    no gov moneyreceives it· size = income
    4get 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 · 0–20%
    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 MacKenzie Ryan Brumberg Foundation?

    Find your warmest path to MacKenzie Ryan Brumberg 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 23 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

    Play a game based on MacKenzie Ryan Brumberg’s filings →

    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 endowment market
    who holds foundation money, and what just moved
    The camps
    funders cluster by geography, not ideology
    By state
    where grant money is based, and what stays home