Skip to content

· Private foundation

John & Diane Prewitt Family Foundation

Its FY2024 filing reports that it accepted unsolicited grant applications.

$58k
Granted FY2024still arriving
19
Grants FY2024still arriving
8
States reached
$40k
Largest
01What it funds
0189% classified

What it funded, over time

Every grant placed by its stated purpose and the recipient’s mission, by year, FY2017 to 2024.

Human Services$731kHealth$538kEducation$28kFood & Nutrition$25kAnimals$22kPhilanthropy$15kInternational$13kPublic Safety & Disaster$9kOther$0
02FY2024 · 19 grants

Where the money goes

Grants by size, and the largest recipients.

By grant size · FY2024

  • Under $10k18 grants · $18k
  • $10k–50k1 grant · $40k
$1,000
Median grant
8
States reached
$1.1M
Total assets
Largest grants
RecipientAmount
Foundation Fighting Blindness$40,000
PEO Foundation$1,000
University of Redlands$1,000
Givsum Foundation$1,000
Individual grant recipient$1,000
Texas A&M 12th Man Foundation$1,000
Murrieta Valley Track & Field$1,000
Mercy Ships$1,000
Wounded Warrior Project$1,000
Southern California Food & Allest Institute$1,000
Individual grant recipient$1,000
Pat Tillman Foundation$1,000
Santa Rosa Plateau Foundation$1,000
Individual grant recipient$1,000
International Fellowship of Christians and Jews$1,000
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:

Its 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 its grants land in higher-need ZIPs.

area typical 10%Canine Companions for Independence: $1k → 11%Canine Companions for Independence: $1k → 11%Canine Companions for Independence: $1k → 11%Canine Companions for Independence: $1k → 11%American Red Cross: $1k → 11%Canine Companions for Independence: $1k → 11%Canine Companions for Independence: $1k → 11%Hart Community Homes Inc: $140k → 10%Hart Community Homes Inc: $101k → 10%Hart Community Homes Inc: $101k → 10%Hart Community Homes Inc: $100k → 10%Hart Community Homes Inc: $100k → 10%Hart Community Homes Inc: $100k → 10%Hart Community Homes Inc: $80k → 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.

Which US states its grants reach

MT
IL
NY
IA
CA
MD
AZ
KS
TN
NC
DC
TX
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.
$1.4M · 40 repeat orgs$12k to everyone else

Grantees it renews have grown median revenue +46% since the first grant, against +28% for those 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

Re-uppedFunded once

Organizations

40
5

Total granted

$1.4M
$5k

Median revenue growth · since first grant

+46%
+28%

Still filing today

57%
40%

New vs renewed · share of each year

In FY2024, 88% of grant dollars renewed an existing relationship; $7k went to new ones.

50%100%’17’18’19’20’21’22’23’24
RenewedFirst-time

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

’17’18’19’20’21’22’23’24
HealthEducationHuman ServicesAnimalsPhilanthropyReligionOther
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

  • SH
    SCRIPPS HEALTH
    6× · 2017–2022 · $16k · revenue +82%
  • Mercy Ships International
    8× · 2017–2024 · $8k · revenue +251%
  • PF
    PEO Foundation
    8× · 2017–2024 · $8k · revenue +60%

Funded once

  • IG
    Individual grant recipient
    one grant, 2022 · $1k
  • GF
    Givsum Foundation for Morningstar Kids
    one grant, 2022 · $1k
  • PH
    PALOMAR HEALTH FOUNDATIONgraduated
    one grant, 2022 · $1k · revenue +28%
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
The San Diego Foundation

The san diego foundation inspires enduring philanthropy and enables community solutions to improve the quality of life in our region.

Philanthropy
2
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
3
The Board of Trustees of the Leland Stanford Junior University

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.

Education
4
University of California Irvine Foundation

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…

Education
5
Uc Santa Barbara Foundation

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…

Education
6
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
7
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
8
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.

—
9
Massachusetts Institute of Technology

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.

Education
10
Dominican University of California

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.

Education
11
University of California San Francisco Foundation

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…

Education
12
The Trustees of Princeton University

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…

Education
How this is measured
The grantee most central to the portfolio’s shape is Wounded Warrior Project Inc; 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.
04the grantee network

28 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. 28 of the 53 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.

0
Load-bearing (≥25% of a budget)
7
Early backer (in before they grew)
28/28
Grantees still filing
24/28
Grew since first funded

Where the money sits, by cause and then by grantee

HART COMMUNITY HOMES INC: $722,000 · Human ServicesHART COMMUNITY HOMES INC+3 more: $16,000 · Human ServicesFoundation Fighting Blindness: $500,000 · OtherFoundation Fighting Blindness+30 more: $99,000 · Other+30 moreSCRIPPS HEALTH: $16,000 · HealthST JUDE CHILDREN'S RESEARCH HOSPITAL INC: $8,000 · HealthBREAKTHROUGH T1D: $5,000 · HealthMICHELLES PLACE CANCER RESOURCE CENTER: $3,000 · Health+1 more: $1,000 · HealthPEO Foundation: $8,000 · EducationUNIVERSITY OF REDLANDS: $7,000 · EducationTexas A&M Foundation: $3,000 · EducationARIZONA STATE UNIVERSITY FOUNDATION FOR A NEW AMERICAN UNIVERSITY: $2,000 · EducationNIGHTHAWK MARCHING BAND BOOSTERS: $1,000 · EducationFRIENDS OF THE SEA LIONS INC DBA PACIFIC MARINE MAMMAL CENTER: $6,000 · AnimalsZOOLOGICAL SOCIETY OF SAN DIEGO: $3,000 · AnimalsThe Dolphin Foundation: $2,000 · AnimalsTHE ARIZONA ANIMAL WELFARE LEAGUE: $2,000 · AnimalsPAT TILLMAN FOUNDATION: $8,000 · PhilanthropyLOS ALTOS MOUNTAIN VIEW COMMUNITY FOUNDATION: $3,000 · PhilanthropyGIVSUM FOUNDATION: $1,000 · PhilanthropyMercy Ships International: $8,000 · International
Human Services$738,000Other$599,000Health$33,000Education$21,000Animals$13,000Philanthropy$12,000International$8,000

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

25%50%75%100%$1.0M$10M$100Mgrantee revenue →↑ funder's share of their budgetHART COMMUNITY HOMES INC: $722,000 over 7y, 7.6% of budgetSCRIPPS HEALTH: $16,000 over 6y, 0.0% of budgetMercy Ships International: $8,000 over 8y, 0.0% of budgetPEO Foundation: $8,000 over 8y, 0.0% of budgetST JUDE CHILDREN'S RESEARCH HOSPITAL INC: $8,000 over 8y, 0.0% of budgetPAT TILLMAN FOUNDATION: $8,000 over 8y, 0.0% of budgetSanta Rosa Plateau Foundation: $8,000 over 8y, 1.0% of budgetBig Bear Ski Educational Foundation: $7,000 over 7y, 0.5% of budgetUNIVERSITY OF REDLANDS: $7,000 over 7y, 0.0% of budgetCANINE COMPANIONS FOR INDEPENDENCE INC: $6,000 over 6y, 0.0% of budgetFRIENDS OF THE SEA LIONS INC DBA PACIFIC MARINE MAMMAL CENTER: $6,000 over 6y, 0.1% of budgetAmerican National Red Cross & Its Constituent Chapters and Branches: $6,000 over 4y, 0.0% of budgetBREAKTHROUGH T1D: $5,000 over 5y, 0.0% of budgetOCEAN INSTITUTE: $5,000 over 5y, 0.0% of budgetINTERNATIONAL FELLOWSHIP OF CHRISTIANS & JEWS INC: $4,000 over 4y, 0.0% of budgetWOUNDED WARRIOR PROJECT INC: $4,000 over 4y, 0.0% of budgetST MARY'S FOOD BANK ALLIANCE: $3,000 over 3y, 0.0% of budgetMICHELLES PLACE CANCER RESOURCE CENTER: $3,000 over 3y, 0.2% of budgetLOS ALTOS MOUNTAIN VIEW COMMUNITY FOUNDATION: $3,000 over 3y, 0.0% of budgetTexas A&M Foundation: $3,000 over 3y, 0.0% of budgetZOOLOGICAL SOCIETY OF SAN DIEGO: $3,000 over 3y, 0.0% of budgetARIZONA STATE UNIVERSITY FOUNDATION FOR A NEW AMERICAN UNIVERSITY: $2,000 over 2y, 0.0% of budgetThe Dolphin Foundation: $2,000 over 2y, 0.2% of budgetTHE ARIZONA ANIMAL WELFARE LEAGUE: $2,000 over 2y, 0.0% of budgetGIVSUM FOUNDATION: $1,000 over 1y, 0.1% of budgetPALOMAR HEALTH FOUNDATION: $1,000 over 1y, 0.0% of budgetSAMARITAN'S PURSE: $1,000 over 1y, 0.0% of budgetNIGHTHAWK MARCHING BAND BOOSTERS: $1,000 over 1y, 0.8% 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 HART COMMUNITY HOMES INC ↗
  • Who funds SCRIPPS HEALTH ↗
  • Who funds Mercy Ships International ↗
  • Who funds PEO Foundation ↗
  • Who funds ST JUDE CHILDREN'S RESEARCH HOSPITAL INC ↗
  • Who funds PAT TILLMAN FOUNDATION ↗
  • Who funds Santa Rosa Plateau Foundation ↗
  • Who funds Big Bear Ski Educational Foundation ↗
  • Who funds UNIVERSITY OF REDLANDS ↗
  • Who funds CANINE COMPANIONS FOR INDEPENDENCE INC ↗
  • 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 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 MICHELLES PLACE CANCER RESOURCE CENTER ↗
  • Who funds LOS ALTOS MOUNTAIN VIEW COMMUNITY FOUNDATION ↗
  • Who funds Texas A&M Foundation ↗
  • Who funds ZOOLOGICAL SOCIETY OF SAN DIEGO ↗
  • Who funds ARIZONA STATE UNIVERSITY FOUNDATION FOR A NEW AMERICAN UNIVERSITY ↗
  • Who funds The Dolphin Foundation ↗

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.

Silicon Valley Community FoundationCA11.4× affinity4 shared granteesties to 6 of 6Hover any node to trace its alignments.Compare side by side →

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

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 John & Diane Prewitt Family Foundation funds: left to right is the share of its income from government, bottom to top the share from John & Diane Prewitt Family Foundation. Bigger dots raise more.

2024
’20’21’22’23’24’25
no gov · 00%0%1%3%5%funder's share of their income ↑0%3%5%8%10%share of the org’s income from government →median 0%
  • Wounded Warrior Project Inc: 0% 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
⤢ axis zoomed · 0–10%
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 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.

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 53 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 2024, released 2024. Filings run roughly 12 to 24 months behind; figures are dated accordingly.

Source object · view filing

Play a game based on John & Diane Prewitt Family’s filings →

More from the funding graph