Muller Family Foundation

Private foundation · Grantmaker Placentia, CA EIN: 95-6121774

The Muller Family Foundation is a private foundation based in Placentia, California. Its 2025 filing lists grants to charitable organizations, with the largest share of grant dollars going to recipients in California.

Muller Family Foundation at a glance

In short: Muller Family Foundation gave $670K across 122 grants in 2025 (avg $5K), mostly in California. Source: 2025 IRS Form 990-PF.

Annual giving (2025)
$670,000
+0.0% vs 2024
Grants made (2025)
122
-1.6% vs 2024
Average grant
$5,492
+1.6% vs 2024
Median grant
$2,875
Total assets
$11,487,233
+6.0% vs 2024
Primary geography
California (88% of itemized 2025 grant dollars)
Latest 990 filing
Form 990-PF, 2025 View filing

Data from IRS Form 990-PF, 2025; updated September 2026.

How to apply to Muller Family Foundation

Accepts unsolicited proposals
No
How to Apply

The foundation states that it makes contributions only to preselected charitable organizations and does not accept unsolicited requests for funds.

Contact

Mailing address: 1979 Burgess Circle, Placentia, CA 92870
Phone: (714) 319-2114

Application details from Grantable's research on the foundation's public materials; confirm on its website before applying.

Who Muller Family Foundation funds

How this funder distributes its grants

Top Recipients

Top 10 recipients in 2025

Social and Environmental Entrepreneurs: $135KSocial and EnvironmentalEntrepreneurs$135KCapo Boys Basketball Club: $27KCapo Boys Basketball Club$27KKusewera: $25KKusewera$25KAchievement Rewards for College Scientists-Los Angeles Chapter: $20KAchievement Rewards forCollege Scientists-Los…$20KDuchenne Muscular Dystrophy Research Fund: $20KDuchenne Muscular DystrophyResearch Fund$20KHoover Institution-Stanford University: $15KHoover Institution-StanfordUniversity$15KUniversity of Southern California: $15KUniversity of SouthernCalifornia$15KBerkeley College of Chemistry: $12KBerkeley College of Chemistry$12KThe Basic Fund: $12KThe Basic Fund$12KMountainstar Family Relief Nursery: $12KMountainstar Family ReliefNursery$12K

The largest 2025 recipient was Social and Environmental Entrepreneurs ($135K). Together the top 10 received $292K.

Grant Size Distribution

540 grants across all recorded years

532<$50K5$50–100K3$100–250K$250–500K$500K–1M$1–5M$5M+

The most common grant size was under $50K: 532 grants of 540 (99%).

Geographic Focus

Where this funder awards grants

In 2025, California recipients received 88% of grant dollars. Recipients in Oregon received 4%, New York 3%, Colorado 2%, and Indiana 1%.

Grant Distribution by State

23states

Share of 2025 grant dollars across all 122 itemized grants.

Cities

Los AngelesSan FranciscoNewport BeachNew YorkIrvineBerkeleyOaklandVenturaChicagoMission ViejoStanfordWashingtonAnaheimEncinoFullertonPortlandSan RafaelBendCalabasasCosta Mesa

How Muller Family Foundation gives

  • 69% of 2025 grantees were also funded in 2024. Method
  • Giving fell 34% from 2022 to 2025. Method
  • In 2025 it paid out 85% of its IRS minimum distribution (the 5% rule). Foundations have until the end of the next year to meet it. Method

Estimate from itemized grant lists in IRS Form 990-PF filings (2025). Recipient names are matched across years, so a renamed or misspelled grantee can look new; grants to individuals are left out. Methodology.

Giving History

Giving Over Time

Total grant dollars and number of grants per year

$0$500K$1M$1.5M1 grant2020 74 grants2021 87 grants2022 133 grants2023 124 grants2024 122 grants2025

From 2020 to 2025, annual grant giving ranged from $670K (2024) to $1.0M (2022). In 2025 it made 122 grants totaling $670K.

Grants by year

Grant recipients and amounts by year

RecipientPurposeAmount
Social and Environmental Entrepreneurs Calabasas, CAFunds Are Donated Without Restriction on Usage$135,000
Capo Boys Basketball Club Mission Viejo, CAFunds Are Donated Without Restriction on Usage$27,000
Kusewera Los Angeles, CAFunds Are Donated Without Restriction on Usage$24,500
Achievement Rewards for College Scientists-Los Angeles Chapter Torrance, CAFunds Are Donated Without Restriction on Usage$20,000
Duchenne Muscular Dystrophy Research Fund Encino, CAFunds Are Donated Without Restriction on Usage$20,000
Hoover Institution-Stanford University Stanford, CAFunds Are Donated Without Restriction on Usage$15,000
University of Southern California Los Angeles, CAFunds Are Donated Without Restriction on Usage$15,000
Berkeley College of Chemistry Berkeley, CAFunds Are Donated Without Restriction on Usage$12,000
The Basic Fund Oakland, CAFunds Are Donated Without Restriction on Usage$12,000
Mountainstar Family Relief Nursery Bend, ORFunds Are Donated Without Restriction on Usage$11,960
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Financial History

Multi-year comparison from IRS filings

Figures from IRS filings, by filing year
Filing yearTotal AssetsRevenueExpensesGrants paidGrantsQualifying DistributionsNet Investment IncomeDistributable Amount
2025$11,487,233$1,241,647$810,534$670,000122$719,644$1,166,942$841,712
2024$10,837,918$1,260,737$860,955$670,000124$737,901$1,179,440$812,666
2023$10,313,561$1,267,494$1,050,330$910,000133$957,126$1,203,625$778,754
2022$10,046,405$813,611$1,190,385$1,020,00087$1,077,312$742,992$962,272
2021$10,537,187$1,072,581$1,026,333$895,00074—$1,013,522$800,565
2020$9,191,972$1,298,736$1,066,333$925,0001—$1,247,274$800,750

Under IRS private-foundation payout rules, Muller Family Foundation reported a distributable amount of $842K for 2025 — the minimum it must pay out in qualifying distributions.

Research compiled by Grantable AI from public sources. Last updated September 2026.

Mission & Focus Areas

No foundation mission statement is provided. Its grants include support for a range of charitable organizations. For example, Social and Environmental Entrepreneurs says its mission is to empower and catalyze projects addressing social and environmental matters. The Basic Fund describes its mission as advancing educational equity for low-income families by helping offset private-school tuition costs in the Bay Area. MountainStar Family Relief Nursery says it works to prevent child abuse and neglect through community support and therapeutic services for children and families.

Grantmaking

In 2025, the foundation awarded $670,000 across 122 grants. Grants ranged from $1,000 to $135,000, with a median of $2,875. The largest awards included $135,000 to Social and Environmental Entrepreneurs, $27,000 to Capo Boys Basketball Club, and $24,500 to Kusewera. Other notable recipients included Achievement Rewards for College Scientists–Los Angeles Chapter and Duchenne Muscular Dystrophy Research Fund, each receiving $20,000; Hoover Institution–Stanford University and the University of Southern California, each receiving $15,000; and Berkeley College of Chemistry and The Basic Fund, each receiving $12,000.

Leadership & Key People

Leadership team and compensation from IRS filings

The 2025 filing lists Mark Muller as president; Matt Muller as vice president/chairman; Mike Mangold as treasurer; and Diana Brandt, Timothy Muller, Sheila Muller, Melissa Muller, Carolyn Goldstein, Eric Muller, and Tim W Muller as directors.

Muller Family Foundation is led by Mark Muller, President since 2025 (on filings since 2020); all 10 officers listed in 2025 are compensated.

Officers on the 2025 filing

  • Mark Muller

    President

    Director → President, 2025

    On filings since 2020

    1 hr/week

    $4K (2020) → $5K (2025)

  • Matt Muller

    V P & Chairman

    Director → V P & Chairman, 2025

    On filings since 2020

    1 hr/week

    $3K (2020) → $5K (2025)

  • Carolyn Goldstein

    Director

    On filings since 2020

    1 hr/week

    $3K (2020) → $5K (2025)

  • Eric Muller

    Director

    On filings since 2020

    1 hr/week

    $3K (2020) → $5K (2025)

  • Melissa Muller

    Director

    On filings since 2020

    1 hr/week

    $4K (2020) → $5K (2025)

  • Sheila Muller

    Director

    President → Director, 2021

    On filings since 2020

    1 hr/week

    $4K (2020) → $5K (2025)

  • Tim W. Muller

    Director

    On filings since 2020

    1 hr/week

    $3K (2020) → $5K (2025)

  • Timothy Muller

    Director

    V P & Chairman → Director, 2025

    On filings since 2020

    1 hr/week

    $4K (2020) → $5K (2025)

  • Diana Brandt

    Director

    On filings since 2021

    1 hr/week

    $5K (2021) → $5K (2025)

  • Mike Mangold

    Treasurer

    New on the 2025 filing

    1 hr/week

    $5K (2025)

Former officers (3)
  • Former: Gretchen Muller (2020–2024) — President
  • Former: Mary Margaret Thompson (2020–2021) — Director
  • Former: John Eric Muller (2021) — Director

Data from IRS Form 990 filings, 2020–2025. "On filings since" is the earliest filing we hold that lists the person; hours are average hours per week as reported.

Compensation Overview

From 2025 IRS filing

Diana Brandt — Director: $5KDiana BrandtDirector$5KTimothy Muller — Director: $5KTimothy MullerDirector$5KSheila Muller — Director: $5KSheila MullerDirector$5KMelissa Muller — Director: $5KMelissa MullerDirector$5KMark Muller — President: $5KMark MullerPresident$5KCarolyn Goldstein — Director: $5KCarolyn GoldsteinDirector$5KEric Muller — Director: $5KEric MullerDirector$5KMatt Muller — V P / Chairman: $5KMatt MullerV P / Chairman$5KTim W Muller — Director: $5KTim W MullerDirector$5KMike Mangold — Treasurer: $5KMike MangoldTreasurer$5K

The highest reported compensation on the 2025 filing was $5K, to Diana Brandt (Director). 10 officers or directors reported compensation on that filing.

Frequently asked questions about Muller Family Foundation

How much does Muller Family Foundation give each year?

Muller Family Foundation gave $670K across 122 grants in 2025, according to its 2025 IRS Form 990-PF. In 2024 it gave $670K across 124 grants.

What is Muller Family Foundation's typical grant size?

Muller Family Foundation's median grant in 2025 was $2,875, and its average grant was $5,492, across 122 grants on its 2025 IRS Form 990-PF.

Where does Muller Family Foundation give grants?

Muller Family Foundation gives mostly in California: 88% of the grant dollars itemized on its 2025 IRS Form 990-PF went to recipients there. The most frequent recipient cities were Los Angeles, CA (23 grants), Newport Beach, CA (7 grants), San Francisco, CA (6 grants) and Irvine, CA (6 grants).

Does Muller Family Foundation give general operating support?

Not in 2025: none of the 122 grants with a stated purpose on Muller Family Foundation's 2025 IRS Form 990-PF were described as general or operating support. Recurring purposes include "Funds Are Donated Without Restriction on Usage" (122 grants).

Who are Muller Family Foundation's largest grantees?

Muller Family Foundation's largest 2025 grantees include Social and Environmental Entrepreneurs ($135,000), Capo Boys Basketball Club ($27,000) and Kusewera ($24,500), according to its 2025 IRS Form 990-PF. Together they received 28% of its itemized 2025 grant dollars.

How large is Muller Family Foundation?

Muller Family Foundation reported $11.5M in total assets on its 2025 IRS Form 990-PF. It paid out $720K in qualifying distributions that year, against a required minimum of $842K (roughly 5% of its investment assets). Falling short in one year is not a violation: foundations have until the end of the next year to meet the minimum.

What does Muller Family Foundation fund?

No foundation mission statement is provided. Its grants include support for a range of charitable organizations. For example, Social and Environmental Entrepreneurs says its mission is to empower and catalyze projects addressing social and environmental matters. See mission & focus areas ↑

How do I apply for a grant from Muller Family Foundation?

The foundation states that it makes contributions only to preselected charitable organizations and does not accept unsolicited requests for funds. Eligibility and process details are in the grantmaking section of this profile. See how to apply ↑

What is Muller Family Foundation's EIN?

Muller Family Foundation's EIN (Employer Identification Number) is 95-6121774. IRS Form 990 filing data is available on this page for 2020–2025.

Does Muller Family Foundation accept unsolicited proposals?

No, according to Grantable's research on the foundation's published guidelines. See how to apply ↑

Data last updated September 2026. Sourced from IRS Form 990-PF filings. Research dossier generated September 2026.

Data update history

(7)

When this profile's IRS filing data changed on Grantable

  1. Updated Form 990-PF for fiscal year 2020 (received by the IRS May 17, 2021)
  2. Updated Form 990-PF for fiscal year 2021 (received by the IRS December 14, 2021)
  3. Updated Form 990-PF for fiscal year 2022 (received by the IRS November 28, 2022)
  4. Updated Form 990-PF for fiscal year 2023 (received by the IRS June 17, 2024)
  5. Updated Form 990-PF for fiscal year 2024 (received by the IRS June 16, 2025)
  6. Updated Form 990-PF for fiscal year 2025 (received by the IRS February 9, 2026)
  7. IRS filings on file for fiscal years 2020–2025

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Cite this profile

Grantable. (2026). Muller Family Foundation funder profile. GrantGraph. Retrieved October 16, 2026, from https://grantable.co/funders/muller-family-foundation-morg_1c4afa4df45242baa1c7c49934ce95f6

BibTeX
@misc{grantable_956121774_2026,
  author       = {{Grantable}},
  title        = {{Muller Family Foundation funder profile}},
  howpublished = {GrantGraph},
  year         = {2026},
  url          = {https://grantable.co/funders/muller-family-foundation-morg_1c4afa4df45242baa1c7c49934ce95f6},
  note         = {Accessed 2026-10-16. Data licensed CC BY 4.0}
}

The figures on this page are open data under CC BY 4.0: reuse them with credit to Grantable and a link. Download the data.

Figures come from Muller Family Foundation's IRS filings (methodology). AI-written summaries, news items and logos are not covered by the open licence. Spot an error? Email hello@grantable.co.

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