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· Private foundation

The Whitcomb 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.

$390k
Granted FY2025still arriving
8
Grants FY2025still arriving
6
States reached
$300k
Largest
01What it funds
0198% classified

What it funded, over time

Every grant placed by its stated purpose and the recipient’s mission, by year, FY2017 to 2025.

Education$801kHealth$503kReligion$495kFood & Nutrition$131kYouth Development$80kPhilanthropy$80kRecreation & Sports$60kHuman Services$55kOther$0
02FY2025 · 8 grants

Where the money goes

Grants by size, and the largest recipients.

By grant size · FY2025

  • Under $10k2 grants · $10k
  • $10k–50k5 grants · $80k
  • $250k+1 grant · $300k
$15,000
Median grant
6
States reached
$4.4M
Total assets
Largest grants
RecipientAmount
CHRIST CHURCH CRANBROOK$300,000
WINCHESTER THURSTON SCHOOL$30,000
ST JUDE'S CHILDREN'S HOSPITAL$15,000
ST MARY'S FOOD ALLIANCE$15,000
Individual grant recipient$10,000
FATHERS FRIENDS$10,000
CANCER LEAGUE OF COLORADO$5,000
GENTLE TOUCH OF COMFORT$5,000
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 (FY17–25) land where the poverty rate runs at 11%, against an area that typically sits at 8%. 80% of its dollars go to grantees based in above-average-need neighborhoods. Most of its grants land in higher-need ZIPs.

area typical 8%BOYS & GIRLS CLUB SCOTTSDALE: $10k → 11%FOREST HIGHLANDS FOUNDATION: $20k → 16%AMELIA'S LIGHT: $10k → 7%AMERICAN LEGION: $15k → 9%COALITION FOR CHRISTIAN OUTREACH: $20k → 11%SCRIPPS RESEARCH INST HOSPITAL: $15k → 11%FEDERALIST SOCIETY - WASHINTON DC: $10k → 14%CHRIST CHURCH CRANBROOK: $300k → 8%PKD FOUNDATION: $20k → 15%HOLE IN THE WALL GANG CAMP: $10k → 12%HOLE IN THE WALL GANG FUND INC: $10k → 12%JUVENILE DIABETES RESEARCH FND: $10k → 4%ST JUDES CHILDREN'S HOSPITAL: $15k → 17%BOOK TRUST OF DENVER: $10k → 12%MATTHEW 25 MINISTRIES: $10k → 16%INIAN ISLAND INSTITUTE: $10k → 18%GEORGE MASON UNIVERSITY: $10k → 7%BOYS & GIRLS CLUB: $10k → 11%FOREST HIGHLANDS FOUNDATION: $10k → 16%COALITION FOR CHRISTIAN OUTREACH: $20k → 11%SCRIPPS RESEARCH INST HOSPITAL: $15k → 11%PKD FOUNDATION: $20k → 15%ST JUDES CHILDREN'S HOSPITAL: $15k → 17%COALITION FOR CHRISTIAN OUTREACH: $15k → 11%PKD FOUNDATION: $30k → 15%ST JUDE'S CHILDREN'S HOSPITAL: $15k → 17%COALITION FOR CHRISTIAN OUTREACH: $15k → 11%PKD FOUNDATION: $20k → 15%ST JUDES CHILDREN'S HOSPITAL: $15k → 17%COALITION FOR CHRISTIAN OUTREACH: $15k → 11%PKD FOUNDATION: $20k → 15%ST JUDES CHILDREN'S HOSPITAL: $15k → 17%COALITION FOR CHRISTIAN OUTREACH: $15k → 11%PKD FOUNDATION: $20k → 15%ST JUDES CHILDREN'S HOSPITAL: $15k → 17%COALITION FOR CHRISTIAN OUTREACH: $15k → 11%PKD FOUNDATION: $20k → 15%ST MARY'S FOOD ALLIANCE: $15k → 11%ST MARY'S FOOD ALLIANCE: $15k → 11%WINCHESTER THURSTON SCHOOL: $486k → 11%ST MARY'S FOOD ALLIANCE: $15k → 11%WINCHESTER THURSTON SCHOOL: $105k → 11%ST MARY'S FOOD ALLIANCE: $15k → 11%WINCHESTER THURSTON SCHOOL: $30k → 11%ST MARY'S FOOD ALLIANCE: $15k → 11%WINCHESTER THURSTON SCHOOL: $30k → 11%ST MARY'S FOOD ALLIANCE: $15k → 11%WINCHESTER THURSTON SCHOOL: $20k → 11%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

AK
MI
MA
OH
PA
CT
CA
CO
MO
VA
AZ
TN
DC
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.

84%of every dollar goes to organizations it has funded before.
$1.9M · 28 repeat orgs$361k to everyone else

28 repeat relationships: 5 still active in FY2025, 23 since wound down; 3 grantees were first funded in FY2025 (too recent to call).

How the two cohorts compare

Re-uppedFunded once

Organizations

28
5

Total granted

$1.9M
$46k

Median revenue growth · since first grant

+26%
+102%

Still filing today

54%
20%

New vs renewed · share of each year

In FY2025, 19% of grant dollars renewed an existing relationship; $315k 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
HealthInternationalPhilanthropyRecreation & SportsArts & CultureEducationOther
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

  • WT
    WINCHESTER THURSTON SCHOOL
    9× · 2017–2025 · $721k · revenue +51%
  • PF
    PKD Foundation
    7× · 2017–2023 · $150k · revenue +90%
  • CL
    CANCER LEAGUE OF COLORADO INC
    9× · 2017–2025 · $80k · revenue +6%

Funded once

  • AL
    AMERICAN LEGION
    one grant, 2023 · $15k
  • AL
    AMERICAN LEGION POST 683
    one grant, 2021 · $10k
  • BG
    BOYS & GIRLS CLUB OF GREATER SCOTTSDALE INCgraduated
    one grant, 2018 · $10k · revenue +102%
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
Target Als Foundation Inc

Our mission is to break down barriers to als research to find effective treatments. by uniting academia, the pharma and biotech industry, government, venture capital, related nonprofits, and the als community, we aim to overcome the…

Education
2
The Translational Genomics Research Institute

Please see schedule o

Health
3
Memorial Sloan-Kettering Cancer Center

Leadership in the prevention, treatment, and cure of cancer through excellence, vision and cost effectiveness in patient care, outreach programs, research, and education.

Health
4
Blood Cancer United Inc

Our mission is to cure leukemia, lymphoma, hodgkin's disease and myeloma, and improve the quality of life of patients and their families.

Health
5
The Susan G Komen Breast Cancer Fdn Group

Susan g. komen 's mission is to save lives by meeting the most critical needs in our communities & investing in breakthrough research to prevent & cure breast cancer.

—
6
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
7
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
8
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
9
Lung Cancer Research Foundation

The mission of the lung cancer research foundation is to improve lung cancer outcomes by funding research for the prevention, diagnosis, treatment and cure of lung cancer.

Health
10
The Susan G Komen Breast Cancer Foundation Inc

Susan g. komen has an unmatched, comprehensive 360-degree approach to fighting breast cancer across all fronts and supporting millions of people in the u.s. and in countries worldwide. we advocate for policies to protect patients, drive…

Health
11
The Graduate School of the Stowers Institute for Medical Research

The graduate school of the stowers institute for medical research ("gssimr") exempt purpose is to provide graduate education that will prepare scholars for scientific research in the biological sciences.

Education
12
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
How this is measured
The grantee most central to the portfolio’s shape is St Jude Children's Research Hospital Inc; the most unlike its peers is The Fathers Friends. 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

18 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. 18 of the 37 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.

1
Load-bearing (≥25% of a budget)
0
Early backer (in before they grew)
17/18
Grantees still filing
12/18
Grew since first funded

Where the money sits, by cause and then by grantee

WINCHESTER THURSTON SCHOOL: $720,748 · OtherWINCHESTER THURSTON SCHOOLCHRIST CHURCH CRANBROOK: $300,000 · OtherCHRIST CHURCH CRANBROOKPKD Foundation: $150,000 · OtherPKD FoundationCOALITION FOR CHRISTIAN OUTREACH: $135,000 · OtherCOALITION FOR CHRISTIAN OUTREACHST MARY'S FOOD ALLIANCE: $110,000 · OtherST MARY'S FOOD ALLIANCEST JUDES CHILDREN'S HOSPITAL: $90,000 · Other+18 more: $354,000 · Other+18 moreCANCER LEAGUE OF COLORADO INC: $80,000 · HealthCANCER LEA…BREAKTHROUGH T1D: $52,887 · HealthBREAKTHROU…PAINT FOR A CURE: $30,000 · HealthPAINT FOR …THE SCRIPPS RESEARCH INSTITUTE: $30,000 · HealthTHE SCRIPP…ST JUDE CHILDREN'S RESEARCH HOSPITAL INC: $20,000 · HealthST JUDE CH…Forest Highlands Foundation: $80,000 · PhilanthropyHOLE IN THE WALL GANG FUND INC: $60,000 · Recreation & SportsTHE BOARD OF TRUSTEES OF THE LELAND STANFORD JUNIOR UNIVERSITY: $20,000 · EducationTIDELINES INSTITUTE: $20,000 · EducationGLOBAL LINKS: $20,000 · InternationalMatthew 25 Ministries Inc: $20,000 · InternationalPHOENIX SYMPHONY ASSOCIATION: $26,995 · Arts & CultureBOYS & GIRLS CLUB OF GREATER SCOTTSDALE INC: $10,000 · Youth Development
Other$1,859,748Health$212,887Philanthropy$80,000Recreation & Sports$60,000Education$40,000International$40,000Arts & Culture$26,995Youth Development$10,000

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

25%50%75%100%$100k$1.0M$10M$100Mgrantee revenue →↑ funder's share of their budgetWINCHESTER THURSTON SCHOOL: $720,748 over 9y, 1.6% of budgetPKD Foundation: $150,000 over 7y, 0.4% of budgetCOALITION FOR CHRISTIAN OUTREACH: $135,000 over 7y, 0.3% of budgetCANCER LEAGUE OF COLORADO INC: $80,000 over 9y, 1.0% of budgetThe Fathers Friends: $60,000 over 7y, 18% of budgetHOLE IN THE WALL GANG FUND INC: $60,000 over 6y, 0.1% of budgetBREAKTHROUGH T1D: $52,887 over 5y, 0.0% of budgetPAINT FOR A CURE: $30,000 over 2y, 5.4% of budgetTHE SCRIPPS RESEARCH INSTITUTE: $30,000 over 3y, 0.0% of budgetAmilia's Light Inc: $30,000 over 3y, 81% of budgetPHOENIX SYMPHONY ASSOCIATION: $26,995 over 4y, 0.1% of budgetTHE BOARD OF TRUSTEES OF THE LELAND STANFORD JUNIOR UNIVERSITY: $20,000 over 2y, 0.0% of budgetGLOBAL LINKS: $20,000 over 2y, 0.3% of budgetMatthew 25 Ministries Inc: $20,000 over 2y, 0.0% of budgetST JUDE CHILDREN'S RESEARCH HOSPITAL INC: $20,000 over 2y, 0.0% of budgetTIDELINES INSTITUTE: $20,000 over 2y, 1.4% of budgetBOYS & GIRLS CLUB OF GREATER SCOTTSDALE INC: $10,000 over 1y, 0.1% 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.

  • Who funds WINCHESTER THURSTON SCHOOL ↗
  • Who funds PKD Foundation ↗
  • Who funds COALITION FOR CHRISTIAN OUTREACH ↗
  • Who funds Forest Highlands Foundation ↗
  • Who funds CANCER LEAGUE OF COLORADO INC ↗
  • Who funds The Fathers Friends ↗
  • Who funds HOLE IN THE WALL GANG FUND INC ↗
  • Who funds BREAKTHROUGH T1D ↗
  • Who funds PAINT FOR A CURE ↗
  • Who funds THE SCRIPPS RESEARCH INSTITUTE ↗
  • Who funds Amilia's Light Inc ↗
  • Who funds PHOENIX SYMPHONY ASSOCIATION ↗
  • Who funds THE BOARD OF TRUSTEES OF THE LELAND STANFORD JUNIOR UNIVERSITY ↗
  • Who funds GLOBAL LINKS ↗
  • Who funds Matthew 25 Ministries Inc ↗
  • Who funds ST JUDE CHILDREN'S RESEARCH HOSPITAL INC ↗
  • Who funds TIDELINES INSTITUTE ↗
  • Who funds BOYS & GIRLS CLUB OF GREATER SCOTTSDALE INC ↗

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.

Pamela Whitcomb Larsen FoundationPA13.6× affinity4 shared granteesties to 11 of 11Hover any node to trace its alignments.Compare side by side →

Open a dossier: Pamela Whitcomb Larsen Foundation · Jpmorgan Chase Foundation · American Endowment Foundation · National Philanthropic Trust · American Online Giving Foundation Inc · Network for Good · Morgan Stanley Global Impact Funding Trust Inc · Vanguard Charitable Endowment Program · Donor Advised Charitable Giving Inc · The Bank of America Charitable Foundation 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 The Whitcomb Charitable Foundation funds: left to right is the share of its income from government, bottom to top the share from The Whitcomb Charitable Foundation. Bigger dots raise more.

2024
’20’21’22’23’24’25
no gov · 10%1%5%11%20%funder's share of their income ↑0%15%30%45%60%share of the org’s income from government →
    no gov moneyreceives it· size = income
    1get no government money at all
    3report government grants on their 990 we could not trace to a source (not plotted)
    0rely on government for over half their income
    ⤢ axis zoomed · 0–60%
    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 Whitcomb Charitable Foundation?

    Find your warmest path to The Whitcomb Charitable 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 37 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

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