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The William L Richter Family Foundation at a glanceAlso receives grants: funding profile →

· Private foundation

The William L Richter Family Foundation

Its FY2025 filing reports that it accepted unsolicited grant applications.

$250k
Granted FY2025still arriving
1
Grants FY2025still arriving
1
States reached
$250k
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, FY2019 to 2024.

Health$1.9MReligion$1.1MArts & Culture$500kYouth Development$225kRecreation & Sports$40kScience & Tech$14kPublic Safety & Disaster$10kPhilanthropy$10kOther$0
02FY2025 · 1 grant

Where the money goes

Grants by size, and the largest recipients.

$250,000
Median grant
1
States reached
$9.6M
Total assets
Largest grants
RecipientAmount
THE MARFAN FOUNDATION$250,000
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 (FY19–25) land where the poverty rate runs at 12%, against an area that typically sits at 8%. 93% of its dollars go to grantees based in above-average-need neighborhoods. Most of its grants land in higher-need ZIPs.

area typical 8%FRIENDS OF HARVARD BASKETBALL: $10k → 16%THE MARFAN FOUNDATION: $250k → 6%NYU LANGONE HEALTH: $300k → 17%ADMIRALS COVE FDN: $10k → 11%GREENWICH REFORM SYNAGOGUE: $300k → 9%NATIONAL JEWISH HEALTH: $50k → 12%THE MAYHEW PROGRAM: $100k → 10%FRIENDS OF HARVARD BASKETBALL: $10k → 16%THE MARFAN FOUNDATION: $50k → 6%NYU SCHOOL OF MEDICINE: $50k → 17%JUPITER MEDICAL CENTER: $300k → 11%GREENWICH REFORM SYNAGOGUE: $300k → 9%THE MAYHEW PROGRAM: $50k → 10%FRIENDS OF HARVARD BASKETBALL: $10k → 16%NYU SCHOOL OF MEDICINE: $50k → 17%GREENWICH REFORM SYNAGOGUE: $200k → 9%THE MAYHEW PROGRAM: $50k → 10%FRIENDS OF HARVARD BASKETBALL: $10k → 16%MICHAEL J FOX FDN: $420k → 17%ROUND HILL VOLUNTEER FIRE CO: $10k → 9%THE MAYHEW PROGRAM: $25k → 10%PARKINSONS FDN: $420k → 17%FIRST TEE CONNECTICUT: $240k → 9%CONTRIBUTIONS PAID OUT LESS THAN 5000: $5k → 17%BRUCE MUSEUM INC: $500k → 9%CONTRIBUTIONS PAID OUT LESS THAN 5000: $2k → 17%FIRST TEE CONNECTICUT: $60k → 9%CONTRIBUTIONS PAID OUT LESS THAN 5000: $2k → 17%GREENWICH HOSPITAL: $300k → 9%CONTRIBUTIONS PAID OUT LESS THAN 5000: $100 → 17%CONTRIBUTIONS PAID OUT LESS THAN 5000: $100 → 17%TRUSTEES OF COLUMBIA UNIVERSITY: $5k → 17%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.

54%of every dollar goes to organizations it has funded before.
$2.2M · 8 repeat orgs$1.9M to everyone else

Grantees it renews have grown median revenue +119% since the first grant, against +12% for those funded once.

8 repeat relationships: 1 still active in FY2025, 7 since wound down.

How the two cohorts compare

Re-uppedFunded once

Organizations

8
8

Total granted

$2.2M
$1.9M

Median revenue growth · since first grant

+119%
+12%

Still filing today

38%
88%

New vs renewed · share of each year

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

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

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

’19’20’21’22’23’24’25
HealthArts & CulturePhilanthropyPublic Safety & DisasterOther
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

  • THE MICHAEL J FOX FOUNDATION FOR PARKINSON'S RESEARCH
    2× · 2019–2022 · $425k · revenue +338%
  • TM
    THE MARFAN FOUNDATION INC
    2× · 2024–2025 · $300k · revenue +42%
  • M
    MAYHEW
    4× · 2019–2022 · $225k · revenue +119%

Funded once

  • BM
    BRUCE MUSEUM INC
    one grant, 2024 · $500k · revenue -27%
  • PARKINSON'S FOUNDATION INCgraduated
    one grant, 2022 · $420k · revenue +67%
  • NL
    NYU LANGONE HEALTH
    one grant, 2024 · $300k
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
New York Genome Center Inc

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.

Health
2
New York University

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.

Education
3
Sanford Burnham Prebys Medical Discovery Institute

Sanford burnham prebys medical discovery institute's mission is to advance the biomedical sciences by cultivating the next generation of scientific leaders, providing meaningful opportunities for researchers of all backgrounds to learn,…

Health
4
Massachusetts Eye & Ear Infirmary

THE MASSACHUSETTS EYE AND EAR INFIRMARY ("THE INFIRMARY") IS A NOT-FOR-PROFIT TEACHING HOSPITAL CONDUCTING PATIENT CARE AND RESEARCH. THE INFIRMARY IS A TEACHING HOSPITAL OF HARVARD MEDICAL SCHOOL AND AN INTERNATIONAL CENTER FOR RESEARCH.…

Health
5
Fred Hutchinson Cancer Center

Fred hutch cancer center ("fred hutch") unites innovative research and compassionate care to prevent and eliminate cancer and infectious disease. continued on schedule o

Health
6
Yale New Haven Hospital

The mission of ynhh is to provide innovative and excellent patient care, teaching, research, and service to the communities it serves.

Health
7
The Johns Hopkins Hospital

For more than 125 years, the mission of the johns hopkins hospital has been to lead the world in the diagnosis and treatment of disease and to train tomorrow's great physicians, nurses and scientists. above all, we aim to provide the…

Health
8
Rhode Island Hospital

As a founding hospital in the brown university health system, rih is committed to its mission: delivering health with care.

Health
9
University of Minnesota Physicians

University of minnesota physicians serves as the integrated group practice for the university of minnesota medical school full-time faculty to provide the highest quality healthcare to patients and their families.university of minnesota…

Health
10
Mass General Brigham Incorporated & Affiliates Group Return

Mass general brigham incorporated is developing an integrated health care delivery system throughout the region that offers patients a continuum of coordinated, high-quality care.

Health
11
The Jackson Laboratory

The purposes of the laboratory are scientific, medical, charitable, and educational. our mission is to discover precise genomic solutions for disease and empower the biomedical community.

Health
12
The Trustees of Princeton University

Research, education and general - princeton university is a private not-for-profit, non-sectarian institution of higher learning with approximately 5,700 undergraduate and 3,300 graduate students. 2,500 students graduated in the 2024-2025…

Education
How this is measured
The grantee most central to the portfolio’s shape is Jupiter Medical Center Inc; the most unlike its peers is Round Hill Volunteer Fire Company 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

12 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. 12 of the 18 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)
2
Early backer (in before they grew)
12/12
Grantees still filing
10/12
Grew since first funded

Where the money sits, by cause and then by grantee

GREENWICH REFORM SYNAGOGUE INC: $800,450 · OtherGREENWICH REFORM SYNAGOGUE INCNYU LANGONE HEALTH: $300,000 · OtherNYU LANGONE HEALTHTHE MARFAN FOUNDATION INC: $300,000 · OtherTHE MARFAN FOUNDATION INCIndividual grant recipient: $300,000 · OtherIndividual grant recipientMAYHEW: $225,000 · OtherMAYHEWNYU SCHOOL OF MEDICINE: $100,000 · Other+2 more: $48,700 · OtherTHE MICHAEL J FOX FOUNDATION FOR PARKINSON'S RESEARCH: $425,000 · HealthTHE MICHAEL J FOX FOUNDATION FOR PARKINSO…PARKINSON'S FOUNDATION INC: $420,000 · HealthPARKINSON'S FOUNDATION INCGREENWICH HOSPITAL: $300,000 · HealthGREENWICH HOSPITALJupiter Medical Center Inc: $300,000 · HealthJupiter Medical Center IncNATIONAL JEWISH HEALTH: $50,000 · HealthBRUCE MUSEUM INC: $500,000 · Arts & CultureBRUCE MUSEUM …President and Fellows of Harvard College: $13,500 · EducationTHE TRUSTEES OF COLUMBIA UNIVERSITY IN THE CITY OF NEW YORK: $5,000 · EducationROUND HILL VOLUNTEER FIRE COMPANY INC: $10,000 · Public Safety & DisasterADMIRALS COVE FOUNDATION INC: $10,000 · Philanthropy
Other$2,074,150Health$1,495,000Arts & Culture$500,000Education$18,500Public Safety & Disaster$10,000Philanthropy$10,000

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

25%50%75%100%$1.0M$10M$100Mgrantee revenue →↑ funder's share of their budgetBRUCE MUSEUM INC: $500,000 over 1y, 4.7% of budgetTHE MICHAEL J FOX FOUNDATION FOR PARKINSON'S RESEARCH: $425,000 over 2y, 0.1% of budgetPARKINSON'S FOUNDATION INC: $420,000 over 1y, 0.8% of budgetTHE MARFAN FOUNDATION INC: $300,000 over 2y, 3.2% of budgetGREENWICH HOSPITAL: $300,000 over 1y, 0.1% of budgetJupiter Medical Center Inc: $300,000 over 1y, 0.1% of budgetMAYHEW: $225,000 over 4y, 4.5% of budgetNATIONAL JEWISH HEALTH: $50,000 over 1y, 0.0% of budgetPresident and Fellows of Harvard College: $13,500 over 3y, 0.0% of budgetROUND HILL VOLUNTEER FIRE COMPANY INC: $10,000 over 1y, 8.1% of budgetADMIRALS COVE FOUNDATION INC: $10,000 over 1y, 0.3% of budgetTHE TRUSTEES OF COLUMBIA UNIVERSITY IN THE CITY OF NEW YORK: $5,000 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 set of overlaps that mostly run through this funder rather than between each other.

Fidelity Investments …
Fidelity Investments Charitable Gift FundMA6× affinity4 shared granteesties to 0 of 0Hover any node to trace its alignments.Compare side by side →

Open a dossier: Fidelity Investments Charitable Gift Fund

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 The William L Richter Family Foundation funds: left to right is the share of its income from government, bottom to top the share from The William L Richter Family Foundation. Bigger dots raise more.

2024
’20’21’22’23’24’25
no gov · 10%1%3%6%10%funder's share of their income ↑0%5%10%15%20%share of the org’s income from government →median 2%
  • President and Fellows of Harvard College: 7% of income from government
  • Jupiter Medical Center Inc: 2% of income from government
  • Bruce Museum Inc: 0% of income from government
  • Greenwich Hospital: 0% of income from government
no gov moneyreceives it· size = income
1get no government money at all
2report 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 The William L Richter Family Foundation?

Find your warmest path to The William L Richter Family 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 18 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 William L Richter Family’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