· Private foundation
Charles D & Twyla R Martin Foundation
Its FY2025 filing reports that it accepted unsolicited grant applications.
What you funded, over time
Every grant clustered by its grantee’s IRS cause code (NTEE), by year — across FY2017–2025.
Where the money goes
Your grants by size, and where they go.
By grant size · FY2025
- Under $10k5 grants · $14k
- $10k–50k1 grant · $40k
| Recipient | Amount |
|---|---|
| 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 |
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.
Your 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 your grants land in higher-need ZIPs.
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.
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.
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.
And the relationships you keep tend to grow: grantees you re-up on have seen median revenue of +62% since the first grant, against +50% for the ones you 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
Organizations
Total granted
Median revenue growth · since first grant
Still filing today
New vs renewed · share of each year
In FY2025, 90% of grant dollars renewed an existing relationship; $5k went to new ones.
Where new relationships form · theme of each grantee’s first grant
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
- CUCHAPMAN UNIVERSITY9× · 2017–2025 · $364k · revenue +62%
- HHHOAG HOSPITAL FOUNDATION3× · 2019–2025 · $246k · revenue +135%
- UOUNIVERSITY OF CALIFORNIA IRVINE FOUNDATION2× · 2020–2021 · $101k · revenue +95%
Funded once
HEALTHNETWORK FOUNDATION FKA HEALTH NET FOUNDATION INCgraduatedone grant, 2021 · $1k · revenue +50%
FRACTURED ATLAS INCgraduatedone grant, 2018 · $1k · revenue +57%- OIOCEANA INCone grant, 2019 · $1k · revenue -10%
Repeat = funded in two or more distinct years; growth and survival are read from each grantee’s own subsequent IRS filings.
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.
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…
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,…
To produce, in a humanistic tradition, health care professionals and biomedical knowledge that will enhance and extend the quality of life in our communities.
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…
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…
The organization provides medical care to improve, maintain, and restore the health of the people in the communities we serve.
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.
The organization provides medical care to improve, maintain, and restore the health of the people in the communities we serve.
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…
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…
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…
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…
For reference, the grantee most central to the portfolio’s shape is University of California Irvine Foundation and 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.
15 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 2017–2025, 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; the rest are funded organizations whose filings we could not track year by year.
Where your money sits — by cause, then by grantee
Each org by its size and your share of it — top-left is where you’re load-bearing
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 CHAPMAN UNIVERSITY ↗
- Who funds HOAG HOSPITAL FOUNDATION ↗
- Who funds UNIVERSITY OF CALIFORNIA IRVINE FOUNDATION ↗
- Who funds Segerstrom Center for the Arts ↗
- Who funds THE ORANGE COUNTY ENDOWMENT FOR INTELLECTUAL ADVANCEMENT ↗
- Who funds ORANGE COUNTY MUSEUM OF ART ↗
- Who funds SECOND HARVEST FOOD BANK OF ORANGE COUNTY INC ↗
- Who funds GIRLS INCORPORATED OF ORANGE COUNTY ↗
- Who funds HEALTHNETWORK FOUNDATION FKA HEALTH NET FOUNDATION INC ↗
- Who funds FRACTURED ATLAS INC ↗
- Who funds OCEANA INC ↗
- Who funds COURT APPOINTED SPECIAL ADVOCATE OF ORANGE COUNTY ↗
- Who funds SCRIPPS HEALTH ↗
- Who funds WOMEN INVESTING IN SECURITY AND EDUCATION ↗
- Who funds ROCHESTER AREA COMMUNITY FOUNDATION ↗
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.
Open a dossier: Donor Advised Charitable Giving Inc · Fidelity Investments Charitable Gift Fund
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 Charles D & Twyla R Martin Foundation 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.
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.
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.