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Plinth

· Private foundation

Martin B Rosen 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.

$1k
Granted FY2025still arriving
7
Grants FY2025still arriving
5
States reached
$250
Largest
01What you fund
01100% classified

What you funded, over time

Every grant placed by its stated purpose and the recipient’s mission, by year — across FY20192025.

Health$28kEducation$11kAnimals$1kRecreation & Sports$350Arts & Culture$250
02FY2025 · 7 grants

Where the money goes

Your grants by size, and where they go.

$250
Median grant
5
States reached
$21k
Total assets
Largest grants
RecipientAmount
BROOKLYN BRIDGE PARK CONSERVANCY$250
THE FORWARD ASSOCIATION$250
ABINGTON HEALTH FOUNDATION$250
ST JUDE'S CHILDREN RESEARCH HOSPIT$250
CENTRAL PARK CONSERVANCY$100
LEWY BODY DEMENTIA ASSOC$100
MARINE CORPS SCHOLARSHIP FOUNDATION$100
02The need
03

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.

show:

Dollar for dollar, your grants (FY19–25) land where the poverty rate runs at 17%, against an area that typically sits at 11%. 71% of your dollars go to grantees based in above-average-need neighborhoods. Most of your grants land in higher-need ZIPs.

area typical 11%THE SOLEBURY SCHOOL: $6k → 6%ABINGTON HEALTH FOUNDATION: $250 → 7%UNIVERSITY OF PENNSYLVANIA HOSPITAL: $15k → 22%BROADWAY BARKS: $1k → 14%THE FORWARD ASSOCIATION: $250 → 17%BROOKLYN BRIDGE PARK CONSERVANCY: $250 → 20%LEWY BODY DEMENTIA ASSOC: $100 → 9%MARINE CORPS SCHOLARSHIP FOUNDATION: $100 → 9%SOLEBURY SCHOOL: $5k → 6%UNIVERSITY OF PENNSYLVANIA HOSPITAL: $10k → 22%CENTRAL PARK CONSERVANCY: $100 → 17%BIRTH CONTROL ADVOCATES OF NY: $1k → 20%CENTER FOR COMMUNICATIONS & MEDICIN: $1k → 17%0%20%40%50%more need →
grant to an above-average-need area below average· circle size = grant amount

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.

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
Brooklyn Bridge Park Corporation

Brooklyn bridge park corporation's mission, d/b/a brooklyn bridge park ("bbp") mission is to provide an exceptional public space that connects people, nature, and the waterfront, through inclusive, innovative, and sustainable management…

Recreation & Sports
2
Brooklyn Navy Yard Development Corp

To manage the brooklyn navy yard for the city of new york, specifically to expand job opportunities for new yorkers by fostering the development of small businesses.

Community Improvement
3
Brooklyn Law School

To provide students with the knowledge, skills, ethical values needed for a career in law.

Education
4
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
5
Stony Brook Surgical Associates University Faculty Practice Corporation

Provide clinical instruction to and supervision of medical school students, interns and residents and, incident thereto, rendering professional services.

Health
6
Stony Brook Internists University Faculty Practice Corporation

Provide clinical instruction to and supervision of medical school students, interns and residents and, incident thereto, rendering professional services.

Health
7
Stony Brook Ophthalmology University Faculty Practice Corporation

Provide clinical instruction to and supervision of medical school students, interns and residents and, incident thereto, rendering professional services.

Health
8
Stony Brook Orthopedic Associates University Faculty Practice Corporation

Provide clinical instruction to and supervision of medical school students, interns and residents and, incident thereto, rendering professional services.

Health
9
Stony Brook Urology University Faculty Practice Corporation

Provide clinical instruction to and supervision of medical school students, interns and residents and, incident thereto, rendering professional services.

Health
10
Chelsea Jewish Lifecare Inc

The organization's mission is to manage a continuum of senior care business lines that consistently provide high-quality compassionate care while focusing on the development of innovative programs and services that enable individuals to…

Health
11
Behavior Analyst Certification Board Inc

We protect consumers of behavior analysis services by systematically establishing, promoting, and disseminating professional standards.

Employment
12
Stony Brook Childrens Services University Faculty Practice Corporation

Provide clinical instruction to and supervision of medical school students, interns and residents and, incident thereto, rendering professional services.

Health

For reference, the grantee most central to the portfolio’s shape is The Forward Association Inc and the most unlike its peers is Broadway Barks 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

9 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 20172025, not grant rows in a single year — so this will not match the grant count on the cover. 9 of the 12 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.

0
Load-bearing (≥25% of a budget)
0
Early backer (in before they grew)
9/9
Grantees still filing
1/9
Grew since you first funded

Where your money sits — by cause, then by grantee

UNIVERSITY OF PENNSYLVANIA HOSPITAL — $25,000 · OtherUNIVERSITY OF PENNSYLVANIA HOSPITALSOLEBURY SCHOOL — $11,000 · OtherSOLEBURY SCHOOL+3 more — $1,500 · OtherBIRTH CONTROL ADVOCATES OF NEW YORK — $1,000 · HealthABINGTON HEALTH FOUNDATION — $250 · HealthLewy Body Dementia Association Inc — $100 · HealthBROADWAY BARKS INC — $1,000 · AnimalsThe Forward Association Inc — $250 · Arts & CultureMARINE CORPS SCHOLARSHIP FOUNDATION INC — $100 · EducationCENTRAL PARK CONSERVANCY INC — $100 · Recreation & Sports
Other$37,500Health$1,350Animals$1,000Arts & Culture$250Education$100Recreation & Sports$100

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 budgetSOLEBURY SCHOOL — $11,000 over 2y, 0.0% of budgetBIRTH CONTROL ADVOCATES OF NEW YORK — $1,000 over 1y, 0.2% of budgetBROADWAY BARKS INC — $1,000 over 1y, 0.3% of budgetBROOKLYN BRIDGE PARK CONSERVANCY INC — $250 over 1y, 0.0% of budgetABINGTON HEALTH FOUNDATION — $250 over 1y, 0.0% of budgetMARINE CORPS SCHOLARSHIP FOUNDATION INC — $100 over 1y, 0.0% of budgetLewy Body Dementia Association Inc — $100 over 1y, 0.0% of budgetCENTRAL PARK CONSERVANCY INC — $100 over 1y, 0.0% 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.

Jewish Communal FundNY12.6× affinity4 shared granteesties to 4 of 4Hover any node to trace its alignments.Compare side by side →

Open a dossier: Jewish Communal Fund · Morgan Stanley Global Impact Funding Trust Inc · National Philanthropic Trust · Donor Advised Charitable Giving Inc · Fidelity Investments Charitable Gift Fund

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 Martin B Rosen Family 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 or a single department — and drag the year to watch it move.

2024
202122232425
no gov · 00%0%1%3%5%your share of their income ↑0%10%20%30%40%share of the org’s income from government
    no gov moneyreceives it· size = income
    0get 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 · 0–40%
    typical government reliance, FY2025

    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.

    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 12 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

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