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Plinth

· Private foundation

The Bertram & Patricia Witham

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.

$13k
Granted FY2025still arriving
10
Grants FY2025still arriving
7
States reached
$3k
Largest
01What you fund
0175% classified

What you funded, over time

Every grant placed by its stated purpose and the recipient’s mission, by year — across FY20182025.

Religion$37kEducation$8kHealth$7kInternational$5kHousing & Shelter$3kAnimals$2kPublic Safety & Disaster$2kEnvironment$1kOther$0
02FY2025 · 10 grants

Where the money goes

Your grants by size, and where they go.

$1,000
Median grant
7
States reached
$705k
Total assets
Largest grants
RecipientAmount
LINCOLN CHARTER SCHOOL$3,000
RESTORATION CHURCH$2,500
DENVER BAPTIST CHURCH$2,500
Individual grant recipient$1,500
HUME LAKE CHRISTIAN CAMPS$1,000
Individual grant recipient$850
THE CARVER$500
AMERICAN RED CROSS$500
PAWS$500
HAITI REHAB FUND$500
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:

Your human-services grants (FY18–25, $6k) land where the poverty rate runs at 9%, against an area that typically sits at 10%. 0% of those dollars go to grantees based in above-average-need neighborhoods. Your grants skew toward lower-need ZIPs.

area typical 10%AMERICAN RED CROSS: $1k → 9%BRIDGEPORT RESCUE MISSION: $2k → 9%CRISIS ASSISTANCE MINISTRY: $1k → 10%AMERICAN RED CROSS: $500 → 9%BRIDGEPORT RESCUE MISSION: $1k → 9%THE CARVER: $500 → 9%THE CARVER: $500 → 9%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.

Which US states your grants reach

IL
NY
IA
OH
CT
CA
CO
NE
MO
VA
TN
NC
DC
GA
TX

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.

64%of every dollar goes to organizations you’ve funded before.
$53k · 12 repeat orgs$30k to everyone else

And the relationships you keep tend to grow: grantees you re-up on have seen median revenue of +16% since the first grant, against +15% for the ones you funded once.

12 repeat relationships — 7 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

12
30

Total granted

$53k
$26k

Median revenue growth · since first grant

+16%
+15%

Still filing today

50%
50%

New vs renewed · share of each year

In FY2025, 70% of grant dollars renewed an existing relationship; $4k went to new ones.

50%100%’18’19’23’24’25
RenewedFirst-time

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

’18’19’23’24’25
Human ServicesHealthEducationReligionFood & NutritionInternationalOther

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

  • LC
    Lincoln Charter School Inc
    2× · 2023–2025 · $4k · revenue +30%
  • BR
    BRIDGEPORT RESCUE MISSION INC
    2× · 2023–2024 · $3k · revenue +16%
  • ST JUDE CHILDREN'S RESEARCH HOSPITAL INC
    2× · 2023–2024 · $3k · revenue +29%

Funded once

  • AU
    Alpha USA
    one grant, 2024 · $3k · revenue 0%
  • SP
    SAMARITAN'S PURSE
    one grant, 2024 · $2k · revenue 0%
  • STEPHEN SILLER TUNNEL TO TOWERS FOUNDATION
    one grant, 2024 · $2k · revenue 0%

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
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.

2
Federation of State Medical Boards of the United States Inc

The fsmb serves as the voice for state medical boards, supporting them through education, assessment, research and advocacy while providing services and initiatives that promote patient safety, quality health care and regulatory best…

Health
3
South Shore Charter School

The mission of south shore charter school is to cultivate students the tenacity, integrity, and curiosity needed to become innovative and socially responsible leaders, ready to face and solve the ever-changing challenges facing our…

Education
4
University of the Sciences in Philadelphia

University of the sciences prepares students to become leaders, innovators, and skilled practitioners in the sciences, the health professions, and related disciplines. we deliver excellence in teaching, research, and service through a safe…

5
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…

6
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
7
Shield of Faith Missions

Sof is called to empower warriors to find purpose, be resilient, and live well. we develop and provide customized treatment plans for veterans through our national network of partners.

Religion
8
American Association for the Advancement of Science

Advance science, engineering, and innovation throughout the world for the benefit of all. the world's largest multidisciplinary scientific society and a leading publisher of cutting-edge research through its science family of journals,…

Science & Tech
9
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
10
Institute for Systems Biology

Non-profit research institute to advance a systems (or holistic and cross-disciplinary) approach to science; personalized medicine; global health & environmental sustainability; science education; & the pioneering & invention of biological…

Science & Tech
11
Corus International Inc

TO MANAGE AN INTERNATIONAL DEVELOPMENT, HEALTH, AND RELIEF FOCUSED FAMILY OF ORGANIZATIONS HELPING PEOPLE AND COMMUNITIES LIFT THEMSELVES OUT OF POVERTY, SUPPORT WELL-BEING OF INDIVIDUALS, FAMILIES AND COMMUNITIES, AND PROVIDE…

Human Services
12
American Gas Association

American gas association's (the association) mission is to develop and advocate for informed, innovative, and durable policy that fulfills our nation's energy needs, environmental aspirations and economic potential. we are committed to…

For reference, the grantee most central to the portfolio’s shape is Bridgeport Rescue Mission Inc and the most unlike its peers is American Farmland Trust. 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 42 years old; the field is 16. You back the established end — and your money leans older still.

THE FIELDby orgYOUR GRANTEESby number22%0%<5yr14%5%5–10yr19%19%10–20yr16%14%20–35yr13%24%35–55yr16%38%55yr+
THE FIELDby orgYOUR MONEYby value22%0%<5yr14%2%5–10yr19%6%10–20yr16%16%20–35yr13%12%35–55yr16%64%55yr+

The field is 22% startups (under 5 years old) — 0% of your grantees by number, and just 0% of your money.

Closures · last 5 years

The orgs you fund almost never close 0.0% lost their exemption, against 13% of the field you don’t fund.

orgs you fund
0.0%0/24
the rest of the field
13%
240,396/1,819,541

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.

04the grantee network

21 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. 21 of the 45 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)
2
Early backer (in before they grew)
21/21
Grantees still filing
14/21
Grew since you first funded

Where your money sits — by cause, then by grantee

MOUNT HERMON ASSOCIATION INCORPORATED — $21,000 · OtherMOUNT HERMON ASSOCIATION INCORPORATEDDENVER BAPTIST CHURCH INC — $6,000 · OtherDENVER BAPTIST CHURCH INCIndividual grant recipient — $5,500 · OtherIndividual grant recipientIndividual grant recipient — $4,230 · OtherIndividual grant recipientRESTORATION CHURCH — $2,500 · OtherIndividual grant recipient — $2,000 · Other+20 more — $14,500 · Other+20 moreLincoln Charter School Inc — $4,000 · EducationSTEPHEN SILLER TUNNEL TO TOWERS FOUNDATION — $2,000 · EducationCHIME INSTITUTE — $500 · EducationBRIDGEPORT RESCUE MISSION INC — $2,500 · Human ServicesAmerican National Red Cross & Its Constituent Chapters and Branches — $1,500 · Human ServicesCrisis Assistance Ministry — $1,000 · Human ServicesTHE CARVER INC — $1,000 · Human ServicesAlpha USA — $2,500 · ReligionSAMARITAN'S PURSE — $2,000 · ReligionTHE PORCH MINISTRIES — $1,000 · ReligionST JUDE CHILDREN'S RESEARCH HOSPITAL INC — $2,500 · HealthAMERICAN CANCER SOCIETY INC — $1,000 · HealthGWENDOLYN STRONG FOUNDATION — $500 · HealthTHE CURE STARTS NOW INC — $500 · HealthHOE MINISTRIES INC — $1,000 · InternationalMEDECINS SANS FRONTIERES USA INC — $1,000 · InternationalFOOD SHARE INC — $1,000 · Food & NutritionAMERICAN FARMLAND TRUST — $500 · Food & NutritionPOST PLAYHOUSE — $1,000 · Arts & Culture
Other$55,730Education$6,500Human Services$6,000Religion$5,500Health$4,500International$2,000Food & Nutrition$1,500Arts & Culture$1,000

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 budgetLincoln Charter School Inc — $4,000 over 2y, 0.0% of budgetBRIDGEPORT RESCUE MISSION INC — $2,500 over 2y, 0.0% of budgetAlpha USA — $2,500 over 1y, 0.0% of budgetST JUDE CHILDREN'S RESEARCH HOSPITAL INC — $2,500 over 2y, 0.0% of budgetSAMARITAN'S PURSE — $2,000 over 1y, 0.0% of budgetSTEPHEN SILLER TUNNEL TO TOWERS FOUNDATION — $2,000 over 1y, 0.0% of budgetAmerican National Red Cross & Its Constituent Chapters and Branches — $1,500 over 2y, 0.0% of budgetCrisis Assistance Ministry — $1,000 over 1y, 0.0% of budgetFOOD SHARE INC — $1,000 over 1y, 0.0% of budgetAMERICAN CANCER SOCIETY INC — $1,000 over 1y, 0.0% of budgetTHE PORCH MINISTRIES — $1,000 over 2y, 0.4% of budgetPOST PLAYHOUSE — $1,000 over 1y, 0.2% of budgetHOE MINISTRIES INC — $1,000 over 1y, 1.1% of budgetMEDECINS SANS FRONTIERES USA INC — $1,000 over 1y, 0.0% of budgetTHE CARVER INC — $1,000 over 2y, 0.0% of budgetGWENDOLYN STRONG FOUNDATION — $500 over 1y, 0.2% of budgetCHIME INSTITUTE — $500 over 1y, 0.0% of budgetAMERICAN FARMLAND TRUST — $500 over 1y, 0.0% of budgetTHE STUDENT CONSERVATION ASSOCIATION INC — $500 over 1y, 0.0% of budgetTHE CURE STARTS NOW INC — $500 over 1y, 0.0% of budgetTHE STONY BROOK SCHOOL — $300 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.

  • Who funds Lincoln Charter School Inc
  • Who funds BRIDGEPORT RESCUE MISSION INC
  • Who funds Alpha USA
  • Who funds ST JUDE CHILDREN'S RESEARCH HOSPITAL INC
  • Who funds SAMARITAN'S PURSE
  • Who funds STEPHEN SILLER TUNNEL TO TOWERS FOUNDATION
  • Who funds American National Red Cross & Its Constituent Chapters and Branches
  • Who funds Crisis Assistance Ministry
  • Who funds FOOD SHARE INC
  • Who funds AMERICAN CANCER SOCIETY INC
  • Who funds THE PORCH MINISTRIES
  • Who funds POST PLAYHOUSE
  • Who funds HOE MINISTRIES INC
  • Who funds MEDECINS SANS FRONTIERES USA INC
  • Who funds THE CARVER INC
  • Who funds GWENDOLYN STRONG FOUNDATION
  • Who funds CHIME INSTITUTE
  • Who funds AMERICAN FARMLAND TRUST

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.

American Endowment FoundationOH10.9× affinity6 shared granteesties to 7 of 7Hover any node to trace its alignments.Compare side by side →

Open a dossier: American Endowment Foundation · Morgan Stanley Global Impact Funding Trust Inc · The Bank of America Charitable Foundation Inc · American Online Giving Foundation Inc · Network for Good · Donor Advised Charitable Giving Inc · Fidelity Investments Charitable Gift Fund · 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 Bertram & Patricia Witham 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%25%50%75%100%share of the org’s income from governmentmedian 16%
  • The Carver Inc16% of income from government
no gov moneyreceives it· size = income
0get no government money at all
7report government grants on their 990 we could not trace to a source (not plotted)
0rely on government for over half their income
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 45 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