The John & Diane Prewitt Family Foundation makes a small number of sizeable, targeted grants, primarily to charitable nonprofits and other philanthropic organizations. Recent giving shows support for community-based residential services in Southern California and medical research into vision loss, with repeat support for at least one national disease-focused charity. Their grants are concentrated rather than broadly distributed, suggesting strategic, relationship-driven philanthropy.
A $100,000 grant to Hart Community Homes Inc in Fullerton, California is the clearest signal in the John & Diane Prewitt Family Foundation’s recent giving: the foundation makes a small number of concentrated awards, often at a much larger scale than its $1,000 baseline grants. That pattern points to a funder that backs a few selected organizations with meaningful support rather than spreading dollars broadly. Recent grants also show a strong commitment to vision-related work. The foundation gave Foundation Fighting Blindness $50,000 in 2023 and followed with $40,000 in 2025, indicating repeat support for retinal disease and vision loss research. Alongside that, the grant list includes community-based residential services, food and basic-needs organizations, health-related charities, and several philanthropic intermediaries. Most recipient organizations are in California, matching the foundation’s regional reach and its heavy concentration of awards in the state. The grant record suggests relationship-driven philanthropy centered on a few organizations, with occasional small awards to a wider set of nonprofits and foundations.
One clear theme is residential support for vulnerable populations. In 2023, the foundation gave $100,000 to Hart Community Homes Inc in Fullerton for charitable purposes, aligning with its support for community-based residential services and group-home models. A second major area is vision research and retinal disease. Foundation Fighting Blindness received $50,000 in 2023 and another $40,000 in 2025, showing sustained funding for eye-disease work rather than a single one-off gift. The foundation also supports basic community services and other charitable organizations. Grants include $3,000 to Southern California Food & Allest Institute in Long Beach in 2023 and $1,000 to the same organization in 2025, plus smaller awards to groups such as Canine Companions for Independence in Oceanside and Palomar Health Foundation in Escondido.
Grant size is highly compressed: the typical award is $1,000, with p25, median, and p75 all at $1,000. That means most gifts are at the same level, even though a few larger grants lift annual totals. The recent record also shows repeat support for select recipients across multiple years, including Foundation Fighting Blindness, Southern California Food & Allest Institute, Mercy Ships, and Wounded Warrior Project. The foundation is structured as a family foundation, not a funder of individuals, and it does not make program-related investments. Its giving is regional, and the record suggests relationship-based grantmaking with a mix of one-time and recurring awards.
$58K
$1.1M
$29K
$59K
Most grants fall between $1K and $1K, with a median of $1K.
25th Percentile
$1K
Median
$1K
75th Percentile
$1K
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Concentrated giving: few, relatively large grants per year with evidence of repeat funding to selected grantees rather than many small awards.
Notable grantees: Hart Community Homes Inc, Foundation Fighting Blindness, Other charitable/philanthropic organizations (unspecified recipients)
Most grants land in California, which accounts for 60% of recipient-state awards. Recipient locations cluster in Southern California cities such as Fullerton, Santa Monica, Long Beach, Murrieta, Oceanside, Escondido, Laguna Niguel, Newport Beach, Dana Point, and Redlands. Outside California, the foundation’s grants reach a scattered set of U.S. locations including Washington, DC; Lindale, Texas; New York, New York; Tempe, Arizona; Topeka, Kansas; Boone, Iowa; Boone, North Carolina; and College Station, Texas. All recorded grants in the dataset are to U.S. recipients.
The typical grant size is $1,000, and the p25, median, and p75 are all $1,000. That indicates most awards in the recent record were made at the same level, with a few larger grants accounting for most of the dollars.
Yes. Foundation Fighting Blindness received $50,000 in 2023 and $40,000 in 2025. Southern California Food & Allest Institute also appears in both 2023 and 2025, and Mercy Ships and Wounded Warrior Project each appear in both years at $1,000.
The recent record shows support for community-based residential services, vision research and retinal disease work, basic-needs and community charities, and grants to other philanthropic organizations. Examples include Hart Community Homes Inc, Foundation Fighting Blindness, Southern California Food & Allest Institute, and Givsum Foundation.
California is the top recipient state, with 60% of grants going to recipients in CA. Recent California recipients include organizations in Fullerton, Santa Monica, Long Beach, Murrieta, Oceanside, Escondido, Laguna Niguel, Newport Beach, Dana Point, and Redlands.
No. The profile shows that it funds organizations rather than individuals, and it does not make program-related investments.
2025
Source: IRS Form 990-PF, fiscal year 2025.
Most recent grants reported to the IRS.
| Recipient | Location | Amount | Year | Purpose |
|---|---|---|---|---|
| Foundation Fighting Blindness | Santa Monica, CA | $40,000 | 2025 | Charitable |
| Murrieta Valley Track & Field | Murrieta, CA | $1,000 | 2025 | Charitable |
| Texas A&M 12th Man Foundation | College Station, TX | $1,000 | 2025 | Charitable |
| Mercy Ships | Lindale, TX | $1,000 | 2025 | Charitable |
| St Judes Children's Research Hospital | Memphis, TN | $1,000 | 2025 | Charitable |
| Canine Companions for Independence | Oceanside, CA | $1,000 | 2025 | Charitable |
| PEO Foundation | Des Moines, IA | $1,000 | 2025 | Charitable |
| Givsum Foundation | Newport Beach, CA | $1,000 | 2025 | Charitable |
| University of Redlands | Redlands, CA | $1,000 | 2025 | Charitable |
| Wounded Warrior Project | Topeka, KS | $1,000 | 2025 | Charitable |
| Samaritans Purse | Boone, NC | $1,000 | 2025 | Charitable |
| International Fellowship of Christians and Jews | Washington, DC | $1,000 | 2025 | Charitable |
| Vaulter Magazine | Menifee, CA | $1,000 | 2025 | Charitable |
| Pat Tillman Foundation | Chicago, IL | $1,000 | 2025 | Charitable |
| Santa Rosa Plateau Foundation | Murrieta, CA | $1,000 | 2025 | Charitable |
| Bernardo Elementary PTA | Escondido, CA | $1,000 | 2025 | Charitable |
| Dolphin Foundation | Dana Point, CA | $1,000 | 2025 | Charitable |
| Elsinore Valley Champions | Lake Elsinore, CA | $1,000 | 2025 | Charitable |
| Southern California Food & Allest Institute | Long Beach, CA | $1,000 | 2025 | Charitable |
| Hart Community Homes Inc | Fullerton, CA | $80,000 | 2024 | Charitable |
| Foundation Fighting Blindness | Santa Monica, CA | $10,000 | 2024 | Charitable |
| Four Peaks for Teachers | Scottsdale, AZ | $1,000 | 2024 | Charitable |
| St Judes Children's Research Hospital | Memphis, TN | $1,000 | 2024 | Charitable |
| Dolphin Foundation | Dana Point, CA | $1,000 | 2024 | Charitable |
| Pat Tillman Foundation | Chicago, IL | $1,000 | 2024 | Charitable |
| Big Bear Ski Educational Foundation | Big Bear Lake, CA | $1,000 | 2024 | Charitable |
| Santa Rosa Plateau Foundation | Murrieta, CA | $1,000 | 2024 | Charitable |
| University of Redlands | Redlands, CA | $1,000 | 2024 | Charitable |
| PEO Foundation | Des Moines, IA | $1,000 | 2024 | Charitable |
| Canine Companions for Independence | Oceanside, CA | $1,000 | 2024 | Charitable |
| International Fellowship of Christians and Jews | Washington, DC | $1,000 | 2024 | Charitable |
| Wounded Warrior Project | Topeka, KS | $1,000 | 2024 | Charitable |
| Mercy Ships | Lindale, TX | $1,000 | 2024 | Charitable |
| Southern California Food & Allest Institute | Long Beach, CA | $1,000 | 2024 | Charitable |
| Hart Community Homes Inc | Fullerton, CA | $100,000 | 2023 | Charitable |
| Foundation Fighting Blindness | Santa Monica, CA | $50,000 | 2023 | Charitable |
| Southern California Food & Allest Institute | Long Beach, CA | $3,000 | 2023 | Charitable |
| PEO Foundation | Des Moines, IA | $1,000 | 2023 | Charitable |
| Arizona Animal Welfare League | Phoenix, AZ | $1,000 | 2023 | Charitable |
| Big Bear Ski Educational Foundation | Big Bear Lake, CA | $1,000 | 2023 | Charitable |
| Mercy Ships | Lindale, TX | $1,000 | 2023 | Charitable |
| University of Redlands | Redlands, CA | $1,000 | 2023 | Charitable |
| Ocean Institute | Dana Point, CA | $1,000 | 2023 | Charitable |
| Pat Tillman Foundation | Chicago, IL | $1,000 | 2023 | Charitable |
| Givsum Foundation for Morningstar Kids | Costa Mesa, CA | $1,000 | 2023 | Charitable |
| Palomar Health Foundation | Escondido, CA | $1,000 | 2023 | Charitable |
| American Red Cross | Boone, IA | $1,000 | 2023 | Charitable |
| Second Harvest Food Bank | Irvine, CA | $1,000 | 2023 | Charitable |
| Santa Rosa Plateau Foundation | Murrieta, CA | $1,000 | 2023 | Charitable |
| Los Altos Community Foundation | Los Altos, CA | $1,000 | 2023 | Charitable |
Foundation Fighting Blindness
$40,000Charitable
Murrieta Valley Track & Field
$1,000Charitable
Mercy Ships
$1,000Charitable
St Judes Children's Research Hospital
$1,000Charitable
Canine Companions for Independence
$1,000Charitable
PEO Foundation
$1,000Charitable
International Fellowship of Christians and Jews
$1,000Charitable
Vaulter Magazine
$1,000Charitable
Santa Rosa Plateau Foundation
$1,000Charitable
Bernardo Elementary PTA
$1,000Charitable
Dolphin Foundation
$1,000Charitable
Elsinore Valley Champions
$1,000Charitable
Southern California Food & Allest Institute
$1,000Charitable
Foundation Fighting Blindness
$10,000Charitable
Four Peaks for Teachers
$1,000Charitable
Dolphin Foundation
$1,000Charitable
Big Bear Ski Educational Foundation
$1,000Charitable
Santa Rosa Plateau Foundation
$1,000Charitable
Southern California Food & Allest Institute
$1,000Charitable
Foundation Fighting Blindness
$50,000Charitable
Southern California Food & Allest Institute
$3,000Charitable
Big Bear Ski Educational Foundation
$1,000Charitable
Santa Rosa Plateau Foundation
$1,000Charitable