· Private foundation
John & Diane Prewitt Family Foundation
Its FY2024 filing reports that it accepted unsolicited grant applications.
What you funded, over time
Every grant placed by its stated purpose and the recipient’s mission, by year — across FY2017–2024.
Where the money goes
Your grants by size, and where they go.
By grant size · FY2024
- Under $10k18 grants · $18k
- $10k–50k1 grant · $40k
| Recipient | Amount |
|---|---|
| Foundation Fighting Blindness | $40,000 |
| Texas A&M 12th Man Foundation | $1,000 |
| Murrieta Valley Track & Field | $1,000 |
| Dolphin Foundation | $1,000 |
| Individual grant recipient | $1,000 |
| Pat Tillman Foundation | $1,000 |
| Southern California Food & Allest Institute | $1,000 |
| Santa Rosa Plateau Foundation | $1,000 |
| Wounded Warrior Project | $1,000 |
| Individual grant recipient | $1,000 |
| Samaritans Purse | $1,000 |
| PEO Foundation | $1,000 |
| University of Redlands | $1,000 |
| Mercy Ships | $1,000 |
| Givsum Foundation | $1,000 |
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 (FY17–24, $729k) land where the poverty rate runs at 10%, against an area that typically sits at 10%. 100% 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.
Which US states your grants reach
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 +46% since the first grant, against +28% for the ones you funded once.
40 repeat relationships — 12 still active in FY2024, 28 since wound down; 7 grantees were first funded in FY2024 (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 FY2024, 88% of grant dollars renewed an existing relationship; $7k 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
- SHSCRIPPS HEALTH6× · 2017–2022 · $16k · revenue +72%
- SRSanta Rosa Plateau Foundation8× · 2017–2024 · $8k · revenue +54%
Mercy Ships International8× · 2017–2024 · $8k · revenue +303%
Funded once
- GFGivsum Foundation for Morningstar Kidsone grant, 2022 · $1k
- PHPALOMAR HEALTH FOUNDATIONgraduatedone grant, 2022 · $1k · revenue +28%
- IGIndividual grant recipientone grant, 2022 · $1k
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.
The san diego foundation inspires enduring philanthropy and enables community solutions to improve the quality of life in our region.
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…
Stanford university is one of a select group of american universities that have achieved eminence in both undergraduate and graduate education and research - cont'd sch o.
The mission of the university of california, irvine foundation (uc irvine foundation) is to raise and manage private funds to support uc irvine's broader mission of excellence in teaching, research and public service. to this end, the uc…
The uc santa barbara foundation actively works to further the goals of the university of california, santa barbara. the foundation seeks to maintain and nurture the university's quality and distinction. on behalf of the campus, the…
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 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…
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.
The mission of mit is to advance knowledge and educate students in science, technology, and other areas of scholarship that will best serve the nation and the world in the 21st century.
Our institutional mission is to educate and prepare students to be ethical leaders and socially responsible global citizens who incorporate the dominican values of study, reflection, community and service into their lives.
Organization's mission ====================== the university of california, san francisco(ucsf) is among the world's leading universities dedicated to advancing health worldwide through biomedical research, graduate-level education in the…
Research, education and general - princeton university is a private not-for-profit, non-sectarian institution of higher learning with approximately 5,700 undergraduate and 3,300 graduate students. 2,500 students graduated in the 2024-2025…
For reference, the grantee most central to the portfolio’s shape is Wounded Warrior Project Inc and the most unlike its peers is Big Bear Ski Educational Foundation. Resemblance is measured on each organization’s own IRS 990 mission text; it reflects how work is described, not its quality or impact.
For each theme you fund, this compares how the sector’s money is shifting with how your own giving is shifting.
Sector change and giving change are each shown relative to their own range, growing (right) or shrinking (left); both normalized, so inflation isn’t mistaken for growth.
Your grantees are a median of 43 years old; the field is 14. You back the established end — and your money leans older still.
The field is 24% startups (under 5 years old) — 0% of your grantees by number, and just 0% of your money.
The orgs you fund almost never close — 0.0% lost their exemption, against 14% of the field you don’t fund.
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.
28 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. 28 of the 53 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 HART COMMUNITY HOMES INC ↗
- Who funds SCRIPPS HEALTH ↗
- Who funds Santa Rosa Plateau Foundation ↗
- Who funds Mercy Ships International ↗
- Who funds ST JUDE CHILDREN'S RESEARCH HOSPITAL INC ↗
- Who funds PEO Foundation ↗
- Who funds PAT TILLMAN FOUNDATION ↗
- Who funds UNIVERSITY OF REDLANDS ↗
- Who funds Big Bear Ski Educational Foundation ↗
- Who funds FRIENDS OF THE SEA LIONS INC DBA PACIFIC MARINE MAMMAL CENTER ↗
- Who funds American National Red Cross & Its Constituent Chapters and Branches ↗
- Who funds CANINE COMPANIONS FOR INDEPENDENCE INC ↗
- Who funds BREAKTHROUGH T1D ↗
- Who funds OCEAN INSTITUTE ↗
- Who funds INTERNATIONAL FELLOWSHIP OF CHRISTIANS & JEWS INC ↗
- Who funds WOUNDED WARRIOR PROJECT INC ↗
- Who funds ST MARY'S FOOD BANK ALLIANCE ↗
- Who funds Texas A&M Foundation ↗
- Who funds ZOOLOGICAL SOCIETY OF SAN DIEGO ↗
- Who funds LOS ALTOS MOUNTAIN VIEW COMMUNITY FOUNDATION ↗
- Who funds MICHELLES PLACE CANCER RESOURCE CENTER ↗
- Who funds THE ARIZONA ANIMAL WELFARE LEAGUE ↗
- Who funds The Dolphin 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: Silicon Valley Community Foundation · National Philanthropic Trust · The Bank of America Charitable Foundation Inc · American Online Giving Foundation Inc · 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 John & Diane Prewitt Family 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.
- Wounded Warrior Project Inc — 0% of income from government
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 John & Diane Prewitt Family Foundation?
Find your warmest path to John & Diane Prewitt Family 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.