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California · Private foundation

Sgt Mark Antonowitsch Foundation

Its FY2025 filing reports that it funds preselected organizations and did not take unsolicited requests; check the foundation's own site before ruling it out.

$92k
Granted FY2025(still arriving)
8
Grants FY2025
21
Organizations funded FY2024
67%
First-time grantees FY2024
Read the full brief
Median grant, FY2025
$10,000
Largest grant, FY2025
$54,000
Organizations funded a year
14 to 21
FY2020 to FY2024
States reached, FY2025
3
Total assets, FY2025
$862k
Applications
Preselected organizations only
Per its most recent filing; check its own site

How open it is to new grantees

In FY2024, 67% of the organizations Sgt Mark Antonowitsch Foundation funded were first-time grantees, receiving 23% of its grant dollars.

New vs renewed · share of each year

In FY2024, 77% of grant dollars renewed an existing relationship; $50k went to new ones.

50%100%’21’22’23’24
RenewedFirst-time

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

’21’22’23’24
HealthHuman ServicesEducationArts & CultureInternationalAnimalsOther
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.
The numbers by year
Fiscal yearOrganizations fundedTo those organizationsFirst-time grantees
FY2025still arriving8$92k25%
FY202421$216k67%
FY202318$257k56%
FY202214$517k50%
FY202115$706k53%
FY202017$368kn/a
99% classified

What it funded, over time

Every grant placed by its stated purpose and the recipient’s mission, by year, FY2020 to 2025.

Health$1.3MHuman Services$298kPublic Benefit$195kInternational$105kCrime & Legal$71kEducation$61kArts & Culture$51kAnimals$25kOther$0

Where its grants go

Grant dollars by states, across the years we hold.

Which US states its grants reach

WA
IL
NY
SD
IN
CA
VA
MD
KS
SC
DC
GA
TX
FL

Top grantees

Largest recipients by total granted, FY2020 to FY2025, and the share of each one’s budget the grants supplied at peak.

GranteeTotal grantedYearsShare of their budget
Mission Hospital Regional Medical Center$628,20030%
Choc Foundation$331,50060%
Hoag Hospital Foundation$250,00011%
Lincoln Club Institute$140,000414%
The Salvation Army$118,2775n/a
Lincoln Media Foundation Inc$50,000112%
Living Success Center$45,000215%
Caterinas Club$40,00021%
California Policy Center$35,00021%
Giving Children Hope$30,00030%
Show all 36 grantees
All grantees of Sgt Mark Antonowitsch Foundation by total granted
GranteeTotal grantedYearsShare of their budget
Mission Hospital Regional Medical Center$628,20030%
Choc Foundation$331,50060%
Hoag Hospital Foundation$250,00011%
Lincoln Club Institute$140,000414%
The Salvation Army$118,2775n/a
Lincoln Media Foundation Inc$50,000112%
Living Success Center$45,000215%
Caterinas Club$40,00021%
California Policy Center$35,00021%
Giving Children Hope$30,00030%
Advancing American Freedom Inc$25,00010%
The Obria Group Inc$25,00021%
John Henry Foundation$20,00021%
Blood Cancer United Inc$20,00010%
#Walkaway Foundation$15,00012%
Mary's Shelter$11,00010%
Fixn Fidos Inc$10,00016%
The Richard Nixon Foundation$5,00010%
Saddleback College Foundation$5,00010%
Noble Friends Foundation for OC Animal Care$5,000110%
Alzheimer's Disease & Related Disorders Association Inc$3,00020%
House of Hope$3,0001n/a
Shriners Hospitals for Children$2,00010%
Colel Chabad$2,0001n/a
Team Blueline Inc$2,00010%
Backyard Benefit Inc$1,8961n/a
The Heritage Foundation$1,50020%
American Cancer Society Inc$1,00010%
Disabled Veterans National Foundation$1,0001n/a
Marine Toys for Tots Foundation$1,00010%
American Heart Association Inc$1,00010%
Law Enforcement Legal Defense Fund$1,00010%
National Parks Conservation Association$1,00010%
St Josephs Indian School$1,0001n/a
Red Cloud Indian School$1,0001n/a
The Daily Caller News Foundation$1,00010%

What it could do for these grantees

Plus 22 recipients with no EIN on record ($321k), not named here.

Where it is load-bearing

Each grantee by its size and the share of its budget Sgt Mark Antonowitsch Foundation supplied at peak.

25%50%75%100%$100k$1.0M$10M$100Mgrantee revenue →↑ funder's share of their budgetMission Hospital Regional Medical Center: $628,200 over 3y, 0.1% of budgetChoc Foundation: $331,500 over 6y, 0.3% of budgetHoag Hospital Foundation: $250,000 over 1y, 0.6% of budgetLincoln Club Institute: $140,000 over 4y, 14% of budgetLincoln Media Foundation Inc: $50,000 over 1y, 12% of budgetLiving Success Center: $45,000 over 2y, 15% of budgetCaterinas Club: $40,000 over 2y, 0.7% of budgetCalifornia Policy Center: $35,000 over 2y, 0.8% of budgetGiving Children Hope: $30,000 over 3y, 0.1% of budgetAdvancing American Freedom Inc: $25,000 over 1y, 0.2% of budgetThe Obria Group Inc: $25,000 over 2y, 1.1% of budgetJohn Henry Foundation: $20,000 over 2y, 0.6% of budgetBlood Cancer United Inc: $20,000 over 1y, 0.0% of budget#Walkaway Foundation: $15,000 over 1y, 2.3% of budgetMary's Shelter: $11,000 over 1y, 0.2% of budgetFixn Fidos Inc: $10,000 over 1y, 6.3% of budgetThe Richard Nixon Foundation: $5,000 over 1y, 0.1% of budgetSaddleback College Foundation: $5,000 over 1y, 0.4% of budgetNoble Friends Foundation for OC Animal Care: $5,000 over 1y, 10% of budgetAlzheimer's Disease & Related Disorders Association Inc: $3,000 over 2y, 0.0% of budgetShriners Hospitals for Children: $2,000 over 1y, 0.0% of budgetTeam Blueline Inc: $2,000 over 1y, 0.1% of budgetThe Heritage Foundation: $1,500 over 2y, 0.0% of budgetAmerican Cancer Society Inc: $1,000 over 1y, 0.0% of budgetMarine Toys for Tots Foundation: $1,000 over 1y, 0.0% of budgetAmerican Heart Association Inc: $1,000 over 1y, 0.0% of budgetLaw Enforcement Legal Defense Fund: $1,000 over 1y, 0.0% of budgetNational Parks Conservation Association: $1,000 over 1y, 0.0% of budgetThe Daily Caller News Foundation: $1,000 over 1y, 0.0% of budget

Tap a dot to name the grantee.

How this is measured
Share of budget is the funder’s grant in a year over the grantee’s total revenue that year, at its highest across the years we hold; revenue is from all sources. Only grantees confirmed against their own filings, whose grants do not exceed their revenue, are plotted: the largest 29.

Nonprofits that may fit its grantmaking

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.

Orange County Community FoundationCA22.5× affinity9 shared granteesties to 11 of 11Hover any node to trace its alignments.Compare side by side →

Open a dossier: Orange County Community Foundation · Donors Trust Inc · Bradley Impact Fund Inc · Lindholm Foundation · The Lewis Family Charitable Foundation · Farmers & Merchants Bank Foundation · Natl Christian Charitable Fdn Inc · Morgan Stanley Global Impact Funding Trust Inc · The Bank of America Charitable Foundation Inc · American Endowment Foundation · Network for Good · Donor Advised Charitable Giving Inc

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.

Compare Sgt Mark Antonowitsch Foundation with peer funders

About Sgt Mark Antonowitsch Foundation

How much does Sgt Mark Antonowitsch Foundation give?
Sgt Mark Antonowitsch Foundation reported 8 grants totaling $92,000 in its FY2025 IRS filing. It funded between 14 and 21 organizations a year over FY2020 to FY2024.
What does Sgt Mark Antonowitsch Foundation fund?
By grant dollars over FY2020 to FY2025, its largest causes are Health (62%), Human Services (14%), Public Benefit (9%).
Who are Sgt Mark Antonowitsch Foundation's largest grantees?
By total granted over FY2020 to FY2025: Mission Hospital Regional Medical Center ($628k), Choc Foundation ($332k), Hoag Hospital Foundation ($250k).
Does Sgt Mark Antonowitsch Foundation fund new organizations?
In FY2024, 67% of the organizations it funded were first-time grantees.
Does Sgt Mark Antonowitsch Foundation accept unsolicited applications?
Its most recent filing reports that it funds preselected organizations and does not take unsolicited requests. Check the foundation's own site before ruling it out.
Which funders back the same organizations as Sgt Mark Antonowitsch Foundation?
Its strongest co-funders, measured against what their size predicts, include Orange County Community Foundation, Donors Trust Inc, Bradley Impact Fund Inc.
Where is Sgt Mark Antonowitsch Foundation based?
Sgt Mark Antonowitsch Foundation is based in CA.

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 58 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

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