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Drs Tom and Lowell Williams Foundation at a glance

· Private foundation

Drs Tom and Lowell Williams 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.

$48k
Granted FY2025still arriving
7
Grants FY2025still arriving
4
States reached
$18k
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, FY2017 to 2025.

Recreation & Sports$305kHealth$74kPublic Safety & Disaster$36kHuman Services$32kArts & Culture$15kEnvironment$10kYouth Development$9kEducation$1k
02FY2025 · 7 grants

Where the money goes

Grants by size, and the largest recipients.

By grant size · FY2025

  • Under $10k5 grants · $18k
  • $10k–50k2 grants · $30k
$6,000
Median grant
4
States reached
$59k
Total assets
Largest grants
RecipientAmount
The CMT Research Foundation$18,000
Epilepsy Foundation$12,000
Springfield Boys and Girls$6,000
New England Public Media$6,000
Carls Family YMCA$3,000
Drummond Island Historical Society$3,000
Individual grant recipient$190
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:

Its human-services grants (FY18–23, $62k) land where the poverty rate runs at 14%, against an area that typically sits at 12%. 100% of those dollars go to grantees based in above-average-need neighborhoods. Most of its grants land in higher-need ZIPs.

area typical 12%AMERICAN RED CROSS: $15k → 14%WOUNDED WARRIOR PROJECT: $8k → 14%CLEVELAND SIGHT CENTER: $1k → 17%AMERICAN RED CROSS: $13k → 14%Wounded Warrior Project: $5k → 14%CLEVELAND SIGHT CENTER: $1k → 17%AMERICAN RED CROSS: $8k → 14%WOUNDED WARRIOR PROJECT: $5k → 14%WOUNDED WARRIOR PROJECT: $5k → 14%WOUNDED WARRIOR PROJECT: $1k → 14%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.

Which US states its grants reach

MI
NY
MA
OH
MD
DC
GA
FL
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.

30%of every dollar goes to organizations it has funded before.
$145k · 9 repeat orgs$338k to everyone else

Grantees it renews have grown median revenue +51% since the first grant, against +18% for those funded once.

9 repeat relationships: 4 still active in FY2025, 5 since wound down; 3 grantees were first funded in FY2025 (too recent to call).

How the two cohorts compare

Re-uppedFunded once

Organizations

9
10

Total granted

$145k
$326k

Median revenue growth · since first grant

+51%
+18%

Still filing today

78%
60%

New vs renewed · share of each year

In FY2025, 75% of grant dollars renewed an existing relationship; $12k 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
Human ServicesHealthArts & CultureEducationEnvironmentYouth DevelopmentOther
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

  • CR
    CMT Research Foundation Inc
    5× · 2021–2025 · $41k · revenue ×40
  • AN
    American National Red Cross & Its Constituent Chapters and Branches
    3× · 2018–2020 · $36k · revenue +9%
  • WOUNDED WARRIOR PROJECT INC
    5× · 2018–2023 · $24k · revenue +64%

Funded once

  • CO
    CITY OF GRANDVIEW HEIGHTS
    one grant, 2017 · $305k
  • YO
    YMCA of Greater Springfield Inc
    one grant, 2024 · $6k · revenue -3%
  • AF
    ALZHEIMER'S FOUNDATION OF AMERICA INC
    one grant, 2024 · $6k · revenue 0%
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
Highmark Health

As the parent entity of a blended health organization, highmark health seeks to improve the health and well-being of the people and communities it serves by providing affordable, accessible and high-quality healthcare.

Health
2
National Public Radio Inc

National public radio, inc. ("npr") works collaboratively with member public radio station licensees ("member stations") to create a more informed public, one that is challenged and invigorated by a deeper understanding and appreciation of…

Arts & Culture
3
Mass General Brigham Health Plan Inc

Mass general brigham health plan's mission is to promote the health and wellness of our members, and to help ensure equitable, affordbale health care for the diverse communities we serve.

Health
4
American Academy of Neurology

The Academy's mission is to enhance member career fulfillment and promote brain health for all.

Community Improvement
5
Society for Neuroscience

Sfn's mission is to: 1. advance the understanding of the brain and the nervous system by bringing together scientists of all segments of neuroscience, by facilitating the integration of research directed at all levels of biological…

Health
6
Npr Foundation

The npr foundation ("foundation") is organized and operated exclusively for the benefit of its sole supported organization, national public radio, inc. ("npr inc."). the foundation supports npr inc. through various activities such as…

—
7
The Genetics Society of America in

Gsa serves an international community of scientists who use genetics to make new discoveries and improve lives. we advance biological research by supporting professional development of scientists, by communicating advances and fostering…

—
8
Minnesota Medical Association

To be the leading voice of medicine to make minnesota the healthiest state and the best place to practice.

—
9
Greater Philadelphia Tourism Marketing Corporation

Visit philadelphia is our name and our mission. as the region's official tourism marketing agency, we build greater philadelphia's image, drive visitation and boost the economy.

Community Improvement
10
United States Naval Institute

Provide an independent forum for those who dare to read, think, speak, and write to advance the professional, literary, and scientific understanding of sea power and other issues critical to global security.

—
11
United States Telecom Association

See schedule oustelecom exists to ensure members can compete, grow and thrive to build a world where families, enterprises and communities are connected through the power of broadband.our member companies have committed a considerable…

—
12
Pharmaceutical Research and Manufacturers of America

Phrma's mission is to conduct effective advocacy for public policies that encourage the discovery of important, new medicines for patients by biopharmaceutical research companies.

—
How this is measured
The grantee most central to the portfolio’s shape is Cleveland Society for the Blind; the most unlike its peers is Grandview Heights Band Parents Association. 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

15 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. 15 of the 22 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)
4
Early backer (in before they grew)
15/15
Grantees still filing
11/15
Grew since first funded

Where the money sits, by cause and then by grantee

CITY OF GRANDVIEW HEIGHTS: $305,000 · OtherCITY OF GRANDVIEW HEIGHTS+7 more: $18,553 · Other+7 moreAmerican National Red Cross & Its Constituent Chapters and Branches: $36,000 · Human ServicesAmerican Nation…WOUNDED WARRIOR PROJECT INC: $24,000 · Human ServicesWOUNDED WARRIOR…YMCA of Greater Springfield Inc: $6,000 · Human ServicesYMCA of Greater…+1 more: $2,000 · Human ServicesCMT Research Foundation Inc: $41,000 · HealthCMT Research Fo…EPILEPSY FOUNDATION OF AMERICA: $18,000 · HealthEPILEPSY FOUNDA…ALZHEIMER'S FOUNDATION OF AMERICA INC: $6,000 · HealthALZHEIMER'S FOU…Little Traverse Conservancy Inc: $10,000 · EnvironmentNEW ENGLAND PUBLIC MEDIA INC: $6,000 · Arts & CultureDrummond Island Tourism Association: $1,000 · Arts & Culture+1 more: $150 · Arts & CultureSPRINGFIELD BOYS & GIRLS CLUB INC: $6,000 · Youth DevelopmentPELOTONIA: $1,800 · EducationGRANDVIEW HEIGHTS BAND PARENTS ASSOCIATION: $1,000 · Education
Other$323,553Human Services$68,000Health$65,000Environment$10,000Arts & Culture$7,150Youth Development$6,000Education$2,800

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 budgetCMT Research Foundation Inc: $41,000 over 5y, 2.3% of budgetAmerican National Red Cross & Its Constituent Chapters and Branches: $36,000 over 3y, 0.0% of budgetWOUNDED WARRIOR PROJECT INC: $24,000 over 5y, 0.0% of budgetEPILEPSY FOUNDATION OF AMERICA: $18,000 over 2y, 0.1% of budgetLittle Traverse Conservancy Inc: $10,000 over 2y, 0.1% of budgetYMCA of Greater Springfield Inc: $6,000 over 1y, 0.1% of budgetALZHEIMER'S FOUNDATION OF AMERICA INC: $6,000 over 1y, 0.0% of budgetNEW ENGLAND PUBLIC MEDIA INC: $6,000 over 1y, 0.1% of budgetCLEVELAND SOCIETY FOR THE BLIND: $2,000 over 2y, 0.0% of budgetDrummond Island Tourism Association: $1,000 over 1y, 0.4% of budgetOHIO HISTORY CONNECTION: $150 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 tightly interlocked group: most of these funders back each other's grantees too.

Vanguard Charitable E…American Online Givin…Donor Advised Charita…Fidelity Investments …Amazonsmile Foundation
Vanguard Charitable Endowment ProgramPA7.5× affinity4 shared granteesties to 4 of 4Hover any node to trace its alignments.Compare side by side →

Open a dossier: Vanguard Charitable Endowment Program · American Online Giving Foundation Inc · Donor Advised Charitable Giving Inc · Fidelity Investments Charitable Gift Fund · Amazonsmile Foundation

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 Drs Tom and Lowell Williams Foundation funds: left to right is the share of its income from government, bottom to top the share from Drs Tom and Lowell Williams Foundation. Bigger dots raise more.

2024
’20’21’22’23’24’25
no gov · 00%0%1%3%5%funder's share of their income ↑0%6%13%19%25%share of the org’s income from government →median 1%
  • Epilepsy Foundation of America: 22% of income from government
  • Springfield Boys & Girls Club Inc: 1% of income from government
  • New England Public Media Inc: 0% of income from government
  • Wounded Warrior Project Inc: 0% of income from government
no gov moneyreceives it· size = income
0get 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 · 0–25%
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 Drs Tom and Lowell Williams Foundation?

Find your warmest path to Drs Tom and Lowell Williams 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 22 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 Drs Tom and Lowell Williams’ 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