The O'Brien Family Foundation

Private foundation · Grantmaker San Mateo, CA EIN: 52-2390855

The O'Brien Family Foundation is a private foundation based in San Mateo, California. Its 2025 filing reports grants to organizations supporting education, scholarships, youth programs, and charitable services, with most grant dollars going to California recipients.

The O'Brien Family Foundation at a glance

In short: The O'Brien Family Foundation gave $780K across 56 grants in 2025 (avg $14K), mostly in California. 16% of 2025 grantees were new. Source: 2025 IRS Form 990-PF.

Annual giving (2025)
$779,550
+8.1% vs 2024
Grants made (2025)
56
+9.8% vs 2024
Average grant
$13,921
-1.5% vs 2024
Median grant
$5,000
Total assets
$845,699
+91.5% vs 2024
New grantees (estimate)
16% first-time grantees (8 of 50, 2025)
Primary geography
California (96% of itemized 2025 grant dollars)
Latest 990 filing
Form 990-PF, 2025 View filing

Data from IRS Form 990-PF, 2025; updated October 2026. New grantees are estimated by matching recipient names across years (methodology).

How to apply to The O'Brien Family Foundation

Accepts unsolicited proposals
No
How to Apply

The foundation makes contributions only to preselected charitable organizations and does not accept unsolicited requests.

Contact

Mailing address: 3130 La Selva Street Suite 101, San Mateo, CA 94403
Phone: (650) 377-0300

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

Who The O'Brien Family Foundation funds

How this funder distributes its grants

Top Recipients

Top 10 recipients in 2025

University of San Francisco: $125KUniversity of San Francisco$125KMercy High School: $100KMercy High School$100KFlintridge Sacred Heart: $50KFlintridge Sacred Heart$50KCatholic Charities: $30K across 2 grantsCatholic Charities$30K · 2 grantsFlintridge Sacred Heart Academy: $25KFlintridge Sacred HeartAcademy$25KCalifornia Homebuilding Foundation: $25KCalifornia HomebuildingFoundation$25KJustin Siena High School Leap: $25KJustin Siena High School Leap$25KKamukama Foundation: $20K across 2 grantsKamukama Foundation$20K · 2 grantsHanna Academy: $20KHanna Academy$20KCatholic Worker House: $15KCatholic Worker House$15K

The largest 2025 recipient was University of San Francisco ($125K). Together the top 10 received $435K.

Organizations only. It also paid 3 individual scholarships ($137,600), which are not listed by name.

Grant Size Distribution

261 grants across all recorded years

238<$50K11$50–100K12$100–250K$250–500K$500K–1M$1–5M$5M+

The most common grant size was under $50K: 238 grants of 261 (91%).

Geographic Focus

Where this funder awards grants

In 2025, 96% of grant dollars went to California recipients, 3% to Texas, and 1% to New York. The filing also lists recipients in Hawaii and Tennessee, each at 0% of grant dollars.

Grant Distribution by State

7states

Share of 2025 grant dollars across all 56 itemized grants.

Cities

San FranciscoRedwood CityMenlo ParkOaklandAthertonBurlingameSacramentoSonomaKailuakonaLa Canada FlintridgeWashingtonAlamedaKaneoheMaryknollMemphisNapaPleasant HillSan MateoScotts ValleyStanford

Is The O'Brien Family Foundation open to new grantees?

16%

first-time grantees, 2025

In 2025, 8 of 50 grantees (16%) were first-time recipients. First grants averaged $7K; repeat grants $14K. How we count

Medians: $5K first-time, $5K repeat.

  • 84% of 2025 grantees were also funded in 2024. Method
  • Giving held roughly steady from 2022 to 2025 (−19%). Method
  • In 2025 it paid out well above its IRS minimum distribution (the 5% rule). Method

Estimate from itemized grant lists in IRS Form 990-PF filings (2020–2025). 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$250K$500K$750K$1M54 grants2020 52 grants2021 52 grants2022 50 grants2023 51 grants2024 56 grants2025

From 2020 to 2025, annual grant giving ranged from $578K (2023) to $991K (2021). In 2025 it made 56 grants totaling $780K.

Grants by year

Grant recipients and amounts by year

RecipientPurposeAmount
University of San Francisco San Francisco, CAUniversity Ministry Tutoring Program$125,000
3 individual scholarships Recipients not named —$137,600
Mercy High School Burlingame, CACapital Campaign for Athletic and Student Life Center$100,000
Flintridge Sacred Heart La Canada Flintridge, CACapital Campaign$50,000
Flintridge Sacred Heart Academy La Canada Flintridge, CAFSHA Eaton Fire Fund$25,000
California Homebuilding Foundation Sacramento, CABita Program$25,000
Catholic Charities San Francisco, CAGeneral Fund$25,000
Justin Siena High School Leap Napa, CALasallian Education Access Progam$24,500
Hanna Academy Sonoma, CAIn Honor of John Heilman$20,000
Catholic Worker House Redwood City, CAGeneral Support$15,000
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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$845,699$1,229,895$825,767$779,55056$790,346$232,695$70,943
2024$441,571$428,152$756,434$720,90051$730,448$252,979$48,288
2023$769,853$216,136$613,611$578,47550$587,097$106,340$67,991
2022$1,167,328$350,507$1,001,611$957,25052$965,009$56,306$103,531
2021$1,818,432$413,813$1,042,584$991,25052$998,931$137,033$148,007
2020$2,447,203$166,765$788,196$735,32054—$119,478$157,560

Under IRS private-foundation payout rules, The O'Brien Family Foundation reported a distributable amount of $71K for 2025 — the minimum it must pay out in qualifying distributions.

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

Mission & Focus Areas

No mission statement for the foundation is provided. Its 2025 grants include support for university tutoring, scholarships, school capital campaigns, and general charitable support. The University of San Francisco describes its mission as educating leaders to help fashion a more humane and just world. An individual recipient says it works to help promising low-income students access and flourish at college preparatory Catholic high schools. The California Homebuilding Foundation describes its work as promoting the homebuilding industry through scholarship, research, education, and professional recognition.

Other 2025 recipients include the Alameda Boys & Girls Club, which says it aims to help young people—especially those from disadvantaged circumstances—realize their potential, and the Women’s Coaching Alliance, which says it develops female leaders through youth sports coaching.

Grantmaking

In 2025, the foundation reported 56 grants totaling $779,550. Grants ranged from $250 to $125,000, with a median grant of $5,000. Larger awards included $125,000 to the University of San Francisco for its University Ministry Tutoring Program; $100,000 to an individual recipient for a Thanksgiving luncheon and scholarships; $100,000 to Mercy High School for a capital campaign for its athletic and student life center; and $50,000 to Flintridge Sacred Heart for a capital campaign.

Other notable grants included $27,600 to St. Ignatius College Preparatory for scholarships, $25,000 to Flintridge Sacred Heart Academy for its Eaton Fire Fund, $25,000 to the California Homebuilding Foundation for its BITA Program, and $25,000 to Catholic Charities for its general fund.

Leadership & Key People

Leadership team and compensation from IRS filings

The 2025 filing lists Dennis C. O’Brien as president, Gloria A. O’Brien as secretary, and Susan Frimel and Chris O’Brien as directors.

The O'Brien Family Foundation is led by Dennis C. O'Brien, President on every filing since 2020; none of the 4 officers listed in 2025 report compensation.

Officers on the 2025 filing

  • Dennis C. O'Brien

    President

    On filings since 2020

    0.5 hrs/week

    No compensation reported

  • Chris O'Brien

    Director

    On filings since 2020

    0.5 hrs/week

    No compensation reported

  • Susan Frimel

    Director

    On filings since 2020

    0.5 hrs/week

    No compensation reported

  • Gloria A. O'Brien

    Secretary

    On filings since 2020

    No compensation reported

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.

Frequently asked questions about The O'Brien Family Foundation

How much does The O'Brien Family Foundation give each year?

The O'Brien Family Foundation gave $780K across 56 grants in 2025, according to its 2025 IRS Form 990-PF. In 2024 it gave $721K across 51 grants.

What is The O'Brien Family Foundation's typical grant size?

The O'Brien Family Foundation's median grant in 2025 was $5,000, and its average grant was $13,921, across 56 grants on its 2025 IRS Form 990-PF. Organizations receiving their first grant from The O'Brien Family Foundation that year got $7K on average.

Where does The O'Brien Family Foundation give grants?

The O'Brien Family Foundation gives mostly in California: 96% of the grant dollars itemized on its 2025 IRS Form 990-PF went to recipients there. The most frequent recipient cities were San Francisco, CA (8 grants), Redwood City, CA (6 grants), Menlo Park, CA (4 grants) and Burlingame, CA (2 grants).

Does The O'Brien Family Foundation give general operating support?

Yes: 48% of The O'Brien Family Foundation's 2025 grants with a stated purpose (27 of 56) were for general or operating support, per its 2025 IRS Form 990-PF.

Who are The O'Brien Family Foundation's largest grantees?

The O'Brien Family Foundation's largest 2025 grantees include University of San Francisco ($125,000), Mercy High School ($100,000) and Flintridge Sacred Heart ($50,000), according to its 2025 IRS Form 990-PF. It also paid 3 individual scholarships ($137,600), which are not listed by name. Together they received 35% of its itemized 2025 grant dollars.

How large is The O'Brien Family Foundation?

The O'Brien Family Foundation reported $846K in total assets on its 2025 IRS Form 990-PF. It paid out $790K in qualifying distributions that year, against a required minimum of $71K (roughly 5% of its investment assets).

What does The O'Brien Family Foundation fund?

No mission statement for the foundation is provided. Its 2025 grants include support for university tutoring, scholarships, school capital campaigns, and general charitable support. See mission & focus areas ↑

How do I apply for a grant from The O'Brien Family Foundation?

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

What is The O'Brien Family Foundation's EIN?

The O'Brien Family Foundation's EIN (Employer Identification Number) is 52-2390855. IRS Form 990 filing data is available on this page for 2020–2025.

Does The O'Brien Family Foundation accept unsolicited proposals?

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

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

Data update history

(2)

When this profile's IRS filing data changed on Grantable

  1. Added Form 990-PF for fiscal year 2025 (received by the IRS June 3, 2026)
  2. IRS filings on file for fiscal years 2020–2024

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Cite this profile

Grantable. (2026). The O'Brien Family Foundation funder profile. GrantGraph. Retrieved October 23, 2026, from https://grantable.co/funders/the-o-brien-family-foundation-morg_4dd9a1d07a72457482c63629eaa30963

BibTeX
@misc{grantable_522390855_2026,
  author       = {{Grantable}},
  title        = {{The O'Brien Family Foundation funder profile}},
  howpublished = {GrantGraph},
  year         = {2026},
  url          = {https://grantable.co/funders/the-o-brien-family-foundation-morg_4dd9a1d07a72457482c63629eaa30963},
  note         = {Accessed 2026-10-23. 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 The O'Brien 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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