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Charles D & Twyla R Martin Foundation at a glance

· Private foundation

Charles D & Twyla R Martin Foundation

Its FY2025 filing reports that it accepted unsolicited grant applications.

$54k
Granted FY2025still arriving
6
Grants FY2025still arriving
1
States reached
$40k
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.

Education$541kHealth$247kArts & Culture$111kFood & Nutrition$3kYouth Development$2kEnvironment$1kCrime & Legal$500Religion$250Other$0
02FY2025 · 6 grants

Where the money goes

Grants by size, and the largest recipients.

By grant size · FY2025

  • Under $10k5 grants · $14k
  • $10k–50k1 grant · $40k
$4,800
Median grant
1
States reached
$1k
Total assets
Largest grants
RecipientAmount
CHAPMAN UNIVERSITY$40,000
ORANGE COUNTY MUSEUM OF ART$5,200
SEGERSTROM CENTER FOR THE ARTS$4,800
ORANGE COUNTY ENDOWMENT FOR INTELLECTUAL ADVANCEMENT$2,500
SECOND HARVEST FOOD BANK OF ORANGE COUNTY$1,350
HOAG HOSPITAL FOUNDATION$500
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 (FY21–24, $1k) land where the poverty rate runs at 16%, against an area that typically sits at 10%. 87% of those dollars go to grantees based in above-average-need neighborhoods. Most of its grants land in higher-need ZIPs.

area typical 10%HEALTHNETWORK FOUNDATION: $1k → 17%WOMEN INVESTING IN SECURITY AND EDUCATION: $150 → 10%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.

99%of every dollar goes to organizations it has funded before.
$895k · 9 repeat orgs$10k to everyone else

Grantees it renews have grown median revenue +62% since the first grant, against +57% for those funded once.

9 repeat relationships: 5 still active in FY2025, 4 since wound down; 1 grantees were first funded in FY2025 (too recent to call).

How the two cohorts compare

Re-uppedFunded once

Organizations

9
10

Total granted

$895k
$5k

Median revenue growth · since first grant

+62%
+57%

Still filing today

78%
60%

New vs renewed · share of each year

In FY2025, 90% of grant dollars renewed an existing relationship; $5k 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
Arts & CultureEducationHealthHuman ServicesEnvironmentCivil RightsOther
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

  • CU
    CHAPMAN UNIVERSITY
    9× · 2017–2025 · $364k · revenue +62%
  • HH
    HOAG HOSPITAL FOUNDATION
    3× · 2019–2025 · $246k · revenue +135%
  • UO
    UNIVERSITY OF CALIFORNIA IRVINE FOUNDATION
    2× · 2020–2021 · $101k · revenue +95%

Funded once

  • FRACTURED ATLAS INCgraduated
    one grant, 2018 · $1k · revenue +57%
  • OI
    OCEANA INC
    one grant, 2019 · $1k · revenue -10%
  • HEALTHNETWORK FOUNDATION FKA HEALTH NET FOUNDATION INCgraduated
    one grant, 2021 · $1k · revenue +95%
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
Orange County Technology Action Network

Octane connects people and ideas with capital and resources to fuel technology growth in orange county. our members represent orange county technology executive leaders, entrepreneurs, investors, venture capitalists, academicians, and…

Community Improvement
2
Occidental College

See schedule othe mission of occidental college is to provide a gifted and diverse group of students with a total educational experience of the highest quality - one that prepares them for leadership in an increasingly complex,…

Education
3
Western University of Health Sciences

To produce, in a humanistic tradition, health care professionals and biomedical knowledge that will enhance and extend the quality of life in our communities.

—
4
Ucla Foundation

The ucla foundation is the giving, receiving, and investing arm of the ucla campus. the foundation enables private donors to help build, sustain and advance one of the world's finest academic and research institutions. private philanthropy…

Education
5
University of Southern California

The central mission of the university of southern california is the development of human beings and society as a whole through the cultivation and enrichment of the human mind and spirit. the principal means by which our mission is…

Education
6
Acadia General Hospital Inc

The organization provides medical care to improve, maintain, and restore the health of the people in the communities we serve.

Health
7
Altamed Health Services Corporation

To eliminate disparities in health care access and outcomes by providing superior quality health and human services through an integrated world-class delivery system for latino, multi-ethnic underserved communities in southern california.

Health
8
University Hospital & Clinics Inc

The organization provides medical care to improve, maintain, and restore the health of the people in the communities we serve.

Health
9
University of New Haven

The University of New Haven is a student-centered comprehensive university with an emphasis on excellence in liberal arts and professional education. Our mission is to prepare our students to lead purposeful and fulfilling lives in a…

Education
10
Children's Healthcare of California

The primary exempt purpose of children's healthcare of california includes without limitation the receipt of distributions and grants for the making of distributions and grants to children's hospital of orange county (choc) and to…

Health
11
The California Channel

To distribute public affairs and other educational information in order to create an electronic bridge between californians and their public officials, and, in the process educate a new generation of voting citizens and civic leaders who…

—
12
The Scripps Research Institute

The scripps research institute ("tsri") performs high impact basic biomedical research, improves the human condition by fostering translation of its discoveries into useful products and engages in the highest quality graduate scientific…

Health
How this is measured
The grantee most central to the portfolio’s shape is University of California Irvine Foundation; the most unlike its peers is Women Investing in Security and Education. 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 21 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)
3
Early backer (in before they grew)
15/15
Grantees still filing
12/15
Grew since first funded

Where the money sits, by cause and then by grantee

CHAPMAN UNIVERSITY: $363,500 · EducationCHAPMAN UNIVERSITYUNIVERSITY OF CALIFORNIA IRVINE FOUNDATION: $101,000 · EducationUNIVERSITY OF CALIFORNIA IRVINE FOUNDATIONHOAG HOSPITAL FOUNDATION: $245,650 · HealthHOAG HOSPITAL FOUNDATION+1 more: $250 · HealthSegerstrom Center for the Arts: $78,900 · Arts & CultureSegerstrom…ORANGE COUNTY MUSEUM OF ART: $5,200 · Arts & CultureORANGE COU…+1 more: $1,000 · Arts & CultureUNIVERSITY OF CALIFORNIA IRVINE: $56,000 · OtherUNIVERSITY…ORANGE COUNTY MUSEUM OF ART: $25,000 · OtherORANGE COU…+7 more: $3,975 · OtherTHE ORANGE COUNTY ENDOWMENT FOR INTELLECTUAL ADVANCEMENT: $20,500 · Philanthropy+1 more: $150 · PhilanthropySECOND HARVEST FOOD BANK OF ORANGE COUNTY INC: $2,850 · Food & NutritionHEALTHNETWORK FOUNDATION FKA HEALTH NET FOUNDATION INC: $1,000 · Human ServicesWOMEN INVESTING IN SECURITY AND EDUCATION: $150 · Human Services
Education$464,500Health$245,900Arts & Culture$85,100Other$84,975Philanthropy$20,650Food & Nutrition$2,850Human Services$1,150

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

25%50%75%100%$10k$100k$1.0M$10M$100Mgrantee revenue →↑ funder's share of their budgetCHAPMAN UNIVERSITY: $363,500 over 9y, 0.0% of budgetHOAG HOSPITAL FOUNDATION: $245,650 over 3y, 0.4% of budgetUNIVERSITY OF CALIFORNIA IRVINE FOUNDATION: $101,000 over 2y, 0.0% of budgetSegerstrom Center for the Arts: $78,900 over 9y, 0.0% of budgetTHE ORANGE COUNTY ENDOWMENT FOR INTELLECTUAL ADVANCEMENT: $20,500 over 8y, 100% of budgetSECOND HARVEST FOOD BANK OF ORANGE COUNTY INC: $2,850 over 2y, 0.0% of budgetGIRLS INCORPORATED OF ORANGE COUNTY: $1,500 over 2y, 0.0% of budgetFRACTURED ATLAS INC: $1,000 over 1y, 0.0% of budgetOCEANA INC: $1,000 over 1y, 0.0% of budgetHEALTHNETWORK FOUNDATION FKA HEALTH NET FOUNDATION INC: $1,000 over 1y, 0.0% of budgetCOURT APPOINTED SPECIAL ADVOCATE OF ORANGE COUNTY: $500 over 1y, 0.0% of budgetSCRIPPS HEALTH: $250 over 1y, 0.0% of budgetROCHESTER AREA COMMUNITY FOUNDATION: $150 over 1y, 0.0% of budgetWOMEN INVESTING IN SECURITY AND EDUCATION: $150 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.

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.

Donor Advised Charita…Fidelity Investments …
Donor Advised Charitable Giving IncCO7.3× affinity4 shared granteesties to 1 of 1Hover any node to trace its alignments.Compare side by side →

Open a dossier: Donor Advised Charitable Giving Inc · 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 Charles D & Twyla R Martin Foundation funds: left to right is the share of its income from government, bottom to top the share from Charles D & Twyla R Martin Foundation. Bigger dots raise more.

2024
’20’21’22’23’24’25
no gov · 00%6%25%56%100%funder's share of their income ↑0%1%3%4%5%share of the org’s income from government →
    no gov moneyreceives it· size = income
    0get 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 · 0–5%
    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 Charles D & Twyla R Martin Foundation?

    Find your warmest path to Charles D & Twyla R Martin 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 21 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 Charles D & Twyla R Martin’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