· Private foundation
MacKenzie Ryan Brumberg Foundation
Its FY2024 filing reports that it funds preselected organizations and did not take unsolicited requests; check the foundation's own site before ruling it out.
Read this first · the figures below need context
65% of MacKenzie Ryan Brumberg Foundation’s FY2024 grant dollars went to Fidelity Investments Charitable Gift Fund, not to grantees.
Its money now reaches organizations through that sponsor, which does not report who recommended each grant. FY2024 names 8 organizations directly, so a portfolio cannot be read from it. Everything below is therefore FY2023, the last year MacKenzie Ryan Brumberg Foundation named its own grantees at scale: 9 organizations, $133k. It is dated, not current.
Organizations named directly on the return
Amber years are those where most dollars went to a sponsor.
What you funded, over time
Every grant placed by its stated purpose and the recipient’s mission, by year — across FY2021–2024.
Where the money goes
Your grants by size, and where they go.
By grant size · FY2023
- Under $10k3 grants · $17k
- $10k–50k8 grants · $116k
| Recipient | Amount |
|---|---|
| FRIENDS OF UNITED HATZALAH INC | $25,000 |
| LONG ISLAND UNIVERSITY | $25,000 |
| GREENWICH RIDING & TRAILS ASSOCIATION INC | $15,000 |
| STANFORD LAW SCHOOL | $11,000 |
| GREENWICH VOLUNTEER FIRE DEPARTMENT INC | $10,000 |
| ROUND HILL NURSERY SCHOOL INC | $10,000 |
| GREENWICH PROFESSIONAL FIREFIGHTERS BENEVOLENT FUN | $10,000 |
| UNITED WAY OF GREENWICH INC | $10,000 |
| ROUND HILL COMMUNITY CHURCH INC | $7,000 |
| UJA FEDERATION OF GREENWICH | $5,000 |
| STANFORD UNIVERSITY | $5,000 |
Do your dollars go where the need is?
Each grant placed by the hardship in its grantee’s ZIP, then read against the area’s typical level.
Dollar for dollar, your grants (FY21–24) land where the poverty rate runs at 12%, against an area that typically sits at 11%. 35% of your dollars go to grantees based in above-average-need neighborhoods. Your grants skew toward lower-need ZIPs.
Matched: human-services grants are those whose grantee’s IRS cause code is Human Services. Placed by people below the poverty linein the grantee’s ZIP, averaged from the tracts in that ZIP; grantee ZIP can differ from where services are delivered.
US grants placed by each grantee’s ZIP, which can differ from where services are actually delivered. Need from public data — U.S. Census/ACS, CDC PLACES, Eviction Lab, USDA — shown as context about the area, never attributed to your giving.
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.
4 repeat relationships — 4 still active in FY2023, 0 since wound down; 9 grantees were first funded in FY2023 (too recent to call). Read against FY2023, the last year this funder named its own grantees directly; its giving has since run through a sponsor, which reports no donor behind each grant.
How the two cohorts compare
Organizations
Total granted
Median revenue growth · since first grant
Still filing today
New vs renewed · share of each year
In FY2024, 67% of grant dollars renewed an existing relationship; $35k went to new ones.
Where new relationships form · theme of each grantee’s first grant
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
- FOFRIENDS OF UNITED HATZALAH INC2× · 2023–2024 · $61k · revenue -45%
- RHROUND HILL NURSERY SCHOOL INC2× · 2023–2024 · $35k · revenue -7%
- GRGREENWICH RIDING & TRAILS ASSOCIATION INC2× · 2023–2024 · $23k · revenue +96%
Funded once
- CLCHABAD LUBAVITCH OF GREENWICH INCone grant, 2022 · $10k
- GFGreenwich Forward INCone grant, 2021 · $5k
- TFTHE FEDERALIST SOCIETY FOR LAW AND PUBLIC POLICY STUDIESone grant, 2021 · $4k · revenue +19%
Repeat = funded in two or more distinct years; growth and survival are read from each grantee’s own subsequent IRS filings.
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.
Supporting organization of greenwich hospital
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…
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.
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…
The mission of the george washington university (gw) is to educate individuals in liberal arts, languages, sciences, learned professions, and other courses and subjects of study, and to conduct scholarly research and publish the findings…
To improve the world through research, scholarship, education, preservation, and practice.
Religious study and services
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.
The goals and objectives of the corporation are as follows:(a) to operate and maintain a nonsectarian, general hospital at one or more locations for the furnishing of inpatient, ambulatory, restorative, preventative and emergency medical…
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.
Golden gate university prepares individuals to lead and serve by providing high quality, practice-based educational programs in law, taxation, business and related professions - as a nonprofit institution - in an innovative and challenging…
The greenwich village society for historic preservation ("village preservation") preserves the architectural heritage and cultural history of greenwich village, the east village, and noho.
For reference, the grantee most central to the portfolio’s shape is Uja Federation of Greenwich Inc and 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.
12 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. 12 of the 18 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.
Where your money sits — by cause, then by grantee
Each org by its size and your share of it — top-left is where you’re load-bearing
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.
- Who funds FIDELITY INVESTMENTS CHARITABLE GIFT FUND ↗
- Who funds FRIENDS OF UNITED HATZALAH INC ↗
- Who funds THE BOARD OF TRUSTEES OF THE LELAND STANFORD JUNIOR UNIVERSITY ↗
- Who funds ROUND HILL NURSERY SCHOOL INC ↗
- Who funds LONG ISLAND UNIVERSITY ↗
- Who funds GREENWICH RIDING & TRAILS ASSOCIATION INC ↗
- Who funds UNITED WAY OF GREENWICH INC ↗
- Who funds Greenwich Volunteer Fire Department Inc ↗
- Who funds THE MUSEUM OF DEMOCRACY INC ↗
- Who funds Greenwich Forward INC ↗
- Who funds UJA FEDERATION OF GREENWICH INC ↗
- Who funds THE FEDERALIST SOCIETY FOR LAW AND PUBLIC POLICY STUDIES ↗
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.
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
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.
Government reliance of your grantees
Every dot is one organization MacKenzie Ryan Brumberg Foundation funds. Left–right is the share of its income from government; up–down is the share from you. Bigger dots raise more. Filter to federal, a single department, or state — and drag the year to watch it move.
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 your grant caused the public funding. Coverage is precision-first — a floor, not 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 12–24 months.
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.