· Private foundation
The Robert and Marcia Horowitz Foundation
Its FY2022 filing reports that it funds preselected organizations and did not take unsolicited requests; check the foundation's own site before ruling it out.
What you funded, over time
Every grant placed by its stated purpose and the recipient’s mission, by year — across FY2017–2022.
Where the money goes
Your grants by size, and where they go.
By grant size · FY2022
- Under $10k17 grants · $40k
- $10k–50k2 grants · $35k
- $50k–250k1 grant · $52k
| Recipient | Amount |
|---|---|
| ICM | $52,050 |
| THE LONG TRAIL SCHOOL | $20,000 |
| HEART SOUL FOUNDATION | $15,000 |
| CATALYST FOUNDATION | $6,000 |
| Individual grant recipient | $5,700 |
| GOTHAM FOOD PANTRY | $5,000 |
| MPTF | $5,000 |
| ANTI-RECIDIVISM COALITION | $5,000 |
| JEWISH CHILDCARE FOUNDATION | $1,900 |
| THE LINDA BUNIS HALLER FOUNDATION | $1,800 |
| HADDASSAH | $1,800 |
| NEIGHBOR TO NEIGHBOR | $1,200 |
| RUTLAND REGIONAL MEDICAL CENTER | $1,000 |
| WINHALL FIRE DEPARTMENT | $1,000 |
| SOUTHERN VERMONT ARTS CENTER | $1,000 |
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.
Your human-services grants (FY19–22, $10k) land where the poverty rate runs at 12%, against an area that typically sits at 12%. 100% of those dollars go to grantees based in above-average-need neighborhoods. Most of your grants land in higher-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.
Which US states your grants reach
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.
And the relationships you keep tend to grow: grantees you re-up on have seen median revenue of +54% since the first grant, against +16% for the ones you funded once.
34 repeat relationships — 9 still active in FY2022, 25 since wound down; 11 grantees were first funded in FY2022 (too recent to call).
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 FY2022, 66% of grant dollars renewed an existing relationship; $43k 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
- LTLONG TRAIL SCHOOL2× · 2021–2022 · $25k · revenue +27%
- TYTHE YOUNG MEN'S AND YOUNG WOMEN'S HEBREW ASSOCIATION5× · 2017–2021 · $17k · revenue +31%
- WFWinhall Fire Department Inc6× · 2017–2022 · $2k · revenue +54%
Funded once
- IGIndividual grant recipientone grant, 2017 · $3k
- CFCatalyst Foundationone grant, 2017 · $2k
- VEVARIOUS ENTITIESone grant, 2019 · $350
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.
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."
The Morgan Library & Museum celebrates and shares the history and process of human creativity from antiquity to the present day through the preservation, study, and interpretation of a dynamic and growing collection.
The museum of the city of new york fosters understanding of the distinctive nature of urban life in the world's most influential metropolis. it engages visitors by celebrating, documenting, and interpreting the city's past, present, and…
The national september 11 memorial & museum at the world trade center bears solemn witness to the terrorist attacks of september 11, 2001, and february 26, 1993. located at a site made sacred through loss, the memorial & museum remembers…
The founding mission of the new-york historical society ("the new york historical "tnyh") is to collect, preserve, and interpret, for the broadest possible public, material relevant to the history of the united states in general and of new…
The mission of the brooklyn institute of arts and sciences, d/b/a brooklyn museum (the "museum") is to bring people together through art and experiences that inspire celebration, compassion, courage, and the will to act. (see schedule o).
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.
The institute for advanced study (the institute) is one of the world's leading centers for theoretical research and intellectual inquiry. see schedule o.
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…
The municipal art society of new york (mas) lifts up the voices of the people in the debates that shape new york's built environment and leads the way to a more livable city from sidewalk to skyline. mas envisions a future in which all new…
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.
For reference, the grantee most central to the portfolio’s shape is Partnership With Children Inc and the most unlike its peers is Catalyst Foundation. Resemblance is measured on each organization’s own IRS 990 mission text; it reflects how work is described, not its quality or impact.
Your grantees are a median of 51 years old; the field is 16. You back the established end — and your money leans older still.
The field is 20% startups (under 5 years old) — 4% of your grantees by number, and just 2% of your money.
The orgs you fund almost never close — 0.0% lost their exemption, against 12% of the field you don’t fund.
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.
29 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. 29 of the 77 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 LONG TRAIL SCHOOL ↗
- Who funds THE YOUNG MEN'S AND YOUNG WOMEN'S HEBREW ASSOCIATION ↗
- Who funds CATALYST FOUNDATION ↗
- Who funds GOTHAM FOOD PANTRY INC ↗
- Who funds THE ANTI-RECIDIVISM COALITION ↗
- Who funds Winhall Fire Department Inc ↗
- Who funds Upper East Side Hatzolah Inc ↗
- Who funds SOUTHERN VERMONT ARTS CENTER INC PO BOX 617 ↗
- Who funds PARTNERSHIP WITH CHILDREN INC ↗
- Who funds CARL SCHURZ PARK CONSERVANCY INC ↗
- Who funds METROPOLITAN MUSEUM OF ART ↗
- Who funds UNITED NEGRO COLLEGE FUND INC ↗
- Who funds MOUNTAIN VALLEY HEALTH COUNCIL INC ↗
- Who funds MAYO CLINIC ↗
- Who funds THE JEWISH MUSEUM ↗
- Who funds UNITED JEWISH APPEAL-FEDERATION OF JEWISH PHILANTHROPIES OF NEW YORK INC ↗
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: Alcyon Foundation · Jewish Communal Fund · The Pfizer Foundation Inc · Vanguard Charitable Endowment Program · The Bank of America Charitable Foundation Inc · Fidelity Investments Charitable Gift Fund · National Philanthropic Trust · Donor Advised Charitable Giving Inc · American Online Giving Foundation 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 The Robert and Marcia Horowitz 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 The Robert and Marcia Horowitz Foundation?
Find your warmest path to The Robert and Marcia Horowitz 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.