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Plinth

· Private foundation

Mark Jacobson Charitable 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.

$70k
Granted FY2025still arriving
3
Grants FY2025still arriving
3
States reached
$60k
Largest
01What you fund
0188% classified

What you funded, over time

Every grant placed by its stated purpose and the recipient’s mission, by year — across FY20172025.

Education$3.1MHealth$1.2MReligion$53kEmployment$26kYouth Development$15kEnvironment$10kOther$0
02FY2025 · 3 grants

Where the money goes

Your grants by size, and where they go.

By grant size · FY2025

  • Under $10k2 grants · $10k
  • $50k–250k1 grant · $60k
$5,000
Median grant
3
States reached
$1.3M
Total assets
Largest grants
RecipientAmount
BERKSHIRE WALDORF HIGH SCHOOL$60,000
Girls Rising$5,000
Flying Deer Nature Center Inc$5,000
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 (FY17–25) land where the poverty rate runs at 14%, against an area that typically sits at 6%. 73% of your dollars go to grantees based in above-average-need neighborhoods. Most of your grants land in higher-need ZIPs.

area typical 6%BERKSHIRE WALDORF HIGH SCHOOL: $60k → 12%NORTHWELL HEALTH FOUNDATION: $175k → 6%HAMPTON SYNAGOGUE: $18k → 7%HAWTHORNE VALLEY ASSOCIATION: $20k → 11%YESHIVA KOL ARAYA: $10k → 14%NYU HOSPITAL CENTER: $28k → 17%ST BARNABAS MEDICAL CENTER: $1k → 16%BERKSHIRE WALDORF HIGH SCHOOL: $5k → 12%NORTHWELL HEALTH FOUNDATION: $150k → 6%HAMPTON SYNAGOGUE: $13k → 7%HAWTHORNE VALLEY ASSOCIATION: $6k → 11%YESHIVA KOL ARAYA: $10k → 14%MARYMOUNT MANHATTAN COLLEGE: $10k → 17%BERKSHIRE WALDORF SCHOOL INC: $20k → 12%NORTHWELL HEALTH FOUNDATION: $150k → 6%HAMPTON SYNAGOGUE: $13k → 7%Flying Deer Nature Center Inc: $5k → 11%YESHIVA KOL ARAYA: $10k → 14%MARYMOUNT MANHATTAN COLLEGE: $10k → 17%NORTHWELL HEALTH FOUNDATION: $150k → 6%HAMPTON SYNAGOGUE: $5k → 7%Flying Deer Nature Center Inc: $5k → 11%YESHIVA KOL ARAYA: $10k → 14%MARYMOUNT MANHATTAN COLLEGE: $10k → 17%NORTHWELL HEALTH FOUNDATION: $150k → 6%HAMPTON SYNAGOGUE: $5k → 7%YESHIVA KOL ARAYA: $10k → 14%New York University: $660k → 17%NORTHWELL HEALTH FOUNDATION: $150k → 6%YESHIVA KOL ARAYA: $10k → 14%New York University: $585k → 17%NORTHWELL HEALTH FOUNDATION: $138k → 6%New York University: $500k → 17%NORTHWELL HEALTH FOUNDATION: $138k → 6%New York University: $475k → 17%New York University: $250k → 17%New York University: $250k → 17%New York University: $235k → 17%ST JUDE'S CHILDREN'S HOSPITAL: $1k → 17%ST JUDE'S CHILDREN'S HOSPITAL: $1k → 17%ST JUDE'S CHILDREN'S HOSPITAL: $1k → 17%Visiting Nurses of New York: $1k → 17%ST JUDE'S CHILDREN'S HOSPITAL: $1k → 17%Visiting Nurses of New York: $1k → 17%ST JUDE'S CHILDREN'S HOSPITAL: $1k → 17%ST JUDE'S CHILDREN'S HOSPITAL: $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 edge
repeat funding

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.

99%of every dollar goes to organizations you’ve funded before.
$4.4M · 11 repeat orgs$49k to everyone else

And the relationships you keep tend to grow: grantees you re-up on have seen median revenue of +17% since the first grant, against +4% for the ones you funded once.

11 repeat relationships — 3 still active in FY2025, 8 since wound down.

How the two cohorts compare

Re-uppedFunded once

Organizations

11
3

Total granted

$4.4M
$49k

Median revenue growth · since first grant

+17%
+4%

Still filing today

64%
33%

New vs renewed · share of each year

In FY2025, 100% of grant dollars renewed an existing relationship; $0 went to new ones.

50%100%’17’18’19’20’21’22’23’24’25
RenewedFirst-time

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

’17’18’19’20’21’22’23’24’25
EducationHealthHuman ServicesEnvironmentEmploymentOther

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

  • NY
    New York University
    7× · 2017–2023 · $3.0M · revenue +76%
  • NH
    NORTHWELL HEALTH FOUNDATION
    8× · 2017–2024 · $1.2M · revenue +17%
  • HV
    HAWTHORNE VALLEY ASSOCIATION INC
    2× · 2022–2023 · $26k · revenue +35%

Funded once

  • NH
    NYU HOSPITAL CENTER
    one grant, 2017 · $28k
  • BW
    BERKSHIRE WALDORF SCHOOL INC
    one grant, 2024 · $20k · revenue +4%
  • SB
    ST BARNABAS MEDICAL CENTER
    one grant, 2019 · $1k

Repeat = funded in two or more distinct years; growth and survival are read from each grantee’s own subsequent IRS filings.

04Your 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
Western New England University

Western new england university, a comprehensive private institution with a tradition of excellence in teaching and scholarship and a commitment to service, awards undergraduate, master's, and doctoral degrees in various departments from…

Education
2
Fairleigh Dickinson University

Fairleigh dickinson university is a center of academic excellence dedicated to the preparation of world citizens through global education. the university strives to provide students with the multi-disciplinary, intercultural, and ethical…

Education
3
The Trustees of Mount Holyoke College

Located in south hadley, massachusetts, mount holyoke college is a highly selective, nondenominational, residential, research liberal arts college for women that is gender-diverse and welcomes applications from female, transgender, and…

Education
4
Dickinson College

Dickinson college provides a useful, innovative and interdisciplinary education in the liberal arts and sciences to prepare students to lead rich and fulfilling lives of engaged global citizenship

Education
5
The Waldorf School of Garden City

The waldorf school of garden city educates children to meet the world with purpose, gratitude and respect. our curriculum, inspired by rudolf steiner, progresses in accordance with child development, awakening students to the experience of…

Education
6
Hillsdale College

Hillsdale college is a private liberal arts college with approximately 1,500 students. founded in 1844, the college remains, in the words of its articles of association, "grateful to god for the inestimable blessings resulting from the…

Education
7
The Academy of the New Church

The mission of the academy is to study and teach the truths of the natural and spiritual worlds in the light of the old testament, the new testament, and the writings of emanuel swedenborg. this is done at the academy of the new church…

Education
8
American Museum of Natural History

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."

Arts & Culture
9
Masters School

The masters school celebrates active participation, deep understanding, and meaningful connection. a community of diverse individuals, we gather to learn, to strive, to dare, to do - to be a power for good in the world.

10
The Trustees of Grinnell College

To educate students in the liberal arts through free inquiry and the open exchange of ideas.when grinnell college framed its charter in the iowa territory of the united states in 1846, it set forth a mission to educate its students "for…

Education
11
Bard College

Bard college seeks to provide a challenging academic program and a supportive environment that fosters a collaborative interchange of ideas in the classroom as well as ambition to achieve excellence.

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

For reference, the grantee most central to the portfolio’s shape is Hawthorne Valley Association Inc and the most unlike its peers is Girls Rising. 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

8 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. 8 of the 14 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)
8/8
Grantees still filing
5/8
Grew since you first funded

Where your money sits — by cause, then by grantee

New York University — $2,955,000 · EducationNew York University+3 more — $115,000 · EducationNORTHWELL HEALTH FOUNDATION — $1,200,000 · HealthNORTHWELL HEALTH FOUNDATIONIndividual grant recipient — $60,000 · OtherWESTHAMPTON SYNAGOGUE INC — $53,000 · OtherNYU HOSPITAL CENTER — $28,169 · OtherST JUDE'S CHILDREN'S HOSPITAL — $6,000 · Other+2 more — $3,000 · OtherHAWTHORNE VALLEY ASSOCIATION INC — $26,000 · EmploymentGIRLS RISING — $15,000 · Human ServicesFLYING DEER NATURE CENTER — $10,000 · Environment
Education$3,070,000Health$1,200,000Other$150,169Employment$26,000Human Services$15,000Environment$10,000

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 budgetNew York University — $2,955,000 over 7y, 0.0% of budgetNORTHWELL HEALTH FOUNDATION — $1,200,000 over 8y, 0.1% of budgetBERKSHIRE WALDORF HIGH SCHOOL INC — $65,000 over 2y, 1.6% of budgetMARYMOUNT MANHATTAN COLLEGE — $30,000 over 3y, 0.0% of budgetHAWTHORNE VALLEY ASSOCIATION INC — $26,000 over 2y, 0.2% of budgetBERKSHIRE WALDORF SCHOOL INC — $20,000 over 1y, 0.4% of budgetGIRLS RISING — $15,000 over 2y, 4.9% of budgetFLYING DEER NATURE CENTER — $10,000 over 2y, 0.6% 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.

  • Who funds New York University
  • Who funds NORTHWELL HEALTH FOUNDATION
  • Who funds BERKSHIRE WALDORF HIGH SCHOOL INC
  • Who funds MARYMOUNT MANHATTAN COLLEGE
  • Who funds HAWTHORNE VALLEY ASSOCIATION INC
  • Who funds BERKSHIRE WALDORF SCHOOL INC
  • Who funds GIRLS RISING
  • Who funds FLYING DEER NATURE CENTER

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.

Berkshire Taconic Community Foundation IncMA13.5× affinity4 shared granteesties to 3 of 3Hover any node to trace its alignments.Compare side by side →

Open a dossier: Berkshire Taconic Community Foundation Inc · 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 Mark Jacobson Charitable 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 · 20%0%1%3%5%your share of their income ↑0%3%5%8%10%share of the org’s income from government
    no gov moneyreceives it· size = income
    2get 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 · 0–10%
    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 14 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

    More from the funding graph