Guillermo J Valenzuela Foundation
The Guillermo J. Valenzuela Foundation is a private foundation based in Woodland Hills, California. Established in 2015 by Dr. Valenzuela, it focuses on improving the health of underserved communities in the Inland Empire, which the foundation identifies as San Bernardino and Riverside Counties.
Guillermo J Valenzuela Foundation at a glance
In short: Guillermo J Valenzuela Foundation gave $509K across 11 grants in 2025 (avg $46K), top state California. Source: 2025 IRS Form 990-PF.
- Annual giving (2025)
- $509,383
- +88.0% vs 2024
- Grants made (2025)
- 11
- +22.2% vs 2024
- Average grant
- $46,308
- +53.8% vs 2024
- Median grant
- $25,000
- Total assets
- $4,320,679
- +22.3% vs 2024
- Primary geography
- California (33% of itemized 2025 grant dollars)
- Latest 990 filing
- Form 990-PF, 2025 View filing
Data from IRS Form 990-PF, 2025; updated October 2026.
How to apply to Guillermo J Valenzuela Foundation
- Accepts unsolicited proposals
- No
- Invitation Only
-
The foundation does not accept unsolicited requests; its website says applications are by invitation only. Interested organizations are directed to discuss a proposed request with the foundation through its counsel. Foundation staff review proposals and may request additional information or schedule a site visit; the board makes final decisions. Funded organizations must sign a grant agreement and submit a final report at the end of the grant period. The foundation says it does not support projects serving only communities outside San Bernardino or Riverside Counties, individual efforts or scholarships, private businesses or profit-making ventures, direct union organizing, or electioneering for public-office candidates.
- Contact
Mailing address: 21700 Oxnard St 720, Woodland Hills, CA 91367
Phone: (888) 208-0547
Website: https://www.valenzuelafoundation.org
Application details from Grantable's research on the foundation's public materials; confirm on its website before applying.
Who Guillermo J Valenzuela Foundation funds
How this funder distributes its grants
Top Recipients
Top 8 recipients in 2025
The largest 2025 recipient was Universidad Austral De Chile ($341K across 2 grants). Together the top 8 received $509K.
Grant Size Distribution
55 grants across all recorded years
The most common grant size was under $50K: 49 grants of 55 (89%).
Geographic Focus
Where this funder awards grants
The foundation’s stated grantmaking focus is the Inland Empire—San Bernardino and Riverside Counties. Its 2025 filing also lists grants to a recipient in Chile and to organizations in California.
Grant Distribution by State
Share of 2025 grant dollars across all 11 itemized grants.
States
Cities
How Guillermo J Valenzuela Foundation gives
- Giving grew 919% from 2022 to 2025. Method
- In 2025 it paid out 48% of its IRS minimum distribution (the 5% rule). Foundations have until the end of the next year to meet it. Method
From the foundation's IRS Form 990-PF filings. Methodology.
Giving History
Giving Over Time
Total grant dollars and number of grants per year
From 2019 to 2025, annual grant giving ranged from $50K (2022) to $1.6M (2023). In 2025 it made 11 grants totaling $509K.
Grants by year
Grant recipients and amounts by year
| Recipient | Purpose | Amount |
|---|---|---|
| Universidad Austral De Chile | Expendinture responsibility grant for research related to pregnancy physiology | $300,000 |
| Universidad Austral De Chile | Expendinture responsibility grant for research related to pregnancy physiology | $41,000 |
| Catholic Charities San Bernardino San Bernardino, CA | General Operating Support | $30,000 |
| Arrowhead Regional Medical Ctr Foundation Colton, CA | Sponsorship of Gala | $25,000 |
| Arrowhead Regional Medical Ctr Foundation Colton, CA | Sponsorship of Golf Classic | $25,000 |
| Desert Sanctuary Inc Barstow, CA | General Operating Support of Domestic Violence Sheleter | $25,000 |
| Southern California Public Radio Pasadena, CA | Health Care News Desk | $20,000 |
| Ujima Inc Upland, CA | Scholarship Fund & Operating Expenses | $20,000 |
| David a Paige Foundation Riverside, CA | Operating Expenses | $10,000 |
| Cal Matters Sacramento, CA | Support for General Mission | $9,383 |
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Financial History
Multi-year comparison from IRS filings
| Filing year | Total Assets | Revenue | Expenses | Grants paid | Grants | Qualifying Distributions | Net Investment Income | Distributable Amount |
|---|---|---|---|---|---|---|---|---|
| 2025 | $4,320,679 | $195,731 | $641,807 | $509,383 | 11 | $580,311 | $146,571 | $1,210,751 |
| 2024 | $3,533,145 | $167,326 | $355,491 | $271,000 | 9 | $313,169 | $123,322 | $168,708 |
| 2023 | $3,408,639 | $216,987 | $1,703,347 | $1,560,691 | 22 | $1,660,298 | $176,002 | $168,123 |
| 2022 | $4,847,829 | $343,655 | $240,023 | $50,000 | 1 | $179,936 | $285,632 | $253,867 |
| 2021 | $5,368,030 | $331,100 | $459,428 | $253,250 | 12 | — | $268,526 | $242,717 |
| 2020 | $4,348,794 | $191,424 | $807,210 | $587,700 | 14 | — | $134,170 | $226,290 |
| 2019 | $5,100,624 | $533,963 | $498,382 | $304,917 | 12 | — | $224,582 | $245,029 |
Under IRS private-foundation payout rules, Guillermo J Valenzuela Foundation reported a distributable amount of $1.2M 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
The foundation’s stated mission is to improve the health of underserved communities in San Bernardino and Riverside Counties. It says it works to expand access to health care and improve quality of care through research, education, grantmaking, programs, and partnerships. Its stated priorities are women’s health and increasing the number of medical providers committed to practicing in the Inland Empire.
Its 2025 grants included pregnancy-physiology research, health care reporting, medical-center event sponsorships, and operating support for charitable organizations. Catholic Charities San Bernardino describes its own mission as promoting stability and well-being through opportunities for healthy, fulfilling lives. Southern California Public Radio describes its mission as strengthening Southern California’s civic and cultural bonds through news and information.
Grantmaking
In filing year 2025, the foundation reported 11 grants totaling $509,383. Grant amounts ranged from $4,000 to $300,000, with a median of $25,000. The largest grants were $300,000 and $41,000 to Universidad Austral de Chile for pregnancy-physiology research. Other grants included $30,000 to Catholic Charities San Bernardino for general operating support; $25,000 each to Arrowhead Regional Medical Center Foundation for gala and golf-classic sponsorships; and $25,000 to Desert Sanctuary for domestic-violence-shelter operating support. Southern California Public Radio received $20,000 for a health care news desk, and Ujima received grants of $20,000 and $4,000 for a scholarship fund and operating expenses.
Leadership & Key People
Leadership team and compensation from IRS filings
The 2025 filing lists Guillermo J. Valenzuela, MD, as president, and John Hanusz as both secretary and treasurer.
Guillermo J Valenzuela Foundation is led by Guillermo J. Valenzuela MD, President on every filing since 2019; none of the 2 officers listed in 2025 report compensation.
Officers on the 2025 filing
Guillermo J. Valenzuela MD
President
On filings since 2019
8 hrs/week
No compensation reported
John Hanusz
Secretary & Treasurer
On filings since 2024
3 hrs/week
No compensation reported
Former officers (2)
- Former: Loreto Marisol Quintana (2019–2023) — Treasurer
- Former: Patricia Cooper (2019–2023) — Secretary
Data from IRS Form 990 filings, 2019–2025. "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 Guillermo J Valenzuela Foundation
How much does Guillermo J Valenzuela Foundation give each year?
Guillermo J Valenzuela Foundation gave $509K across 11 grants in 2025, according to its 2025 IRS Form 990-PF. In 2024 it gave $271K across 9 grants.
What is Guillermo J Valenzuela Foundation's typical grant size?
Guillermo J Valenzuela Foundation's median grant in 2025 was $25,000, and its average grant was $46,308, across 11 grants on its 2025 IRS Form 990-PF.
Where does Guillermo J Valenzuela Foundation give grants?
Guillermo J Valenzuela Foundation's top state is California, with 33% of the grant dollars itemized on its 2025 IRS Form 990-PF. The most frequent recipient cities were Colton, CA (2 grants) and Upland, CA (2 grants).
Does Guillermo J Valenzuela Foundation give general operating support?
Yes: 55% of Guillermo J Valenzuela Foundation's 2025 grants with a stated purpose (6 of 11) were for general or operating support, per its 2025 IRS Form 990-PF.
Who are Guillermo J Valenzuela Foundation's largest grantees?
Guillermo J Valenzuela Foundation's largest 2025 grantees include Universidad Austral De Chile ($341,000 across 2 grants), Arrowhead Regional Medical Ctr Foundation ($50,000 across 2 grants) and Catholic Charities San Bernardino ($30,000), according to its 2025 IRS Form 990-PF. Together they received 83% of its itemized 2025 grant dollars.
How large is Guillermo J Valenzuela Foundation?
Guillermo J Valenzuela Foundation reported $4.3M in total assets on its 2025 IRS Form 990-PF. It paid out $580K in qualifying distributions that year, against a required minimum of $1.2M (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 Guillermo J Valenzuela Foundation fund?
The foundation’s stated mission is to improve the health of underserved communities in San Bernardino and Riverside Counties. It says it works to expand access to health care and improve quality of care through research, education, grantmaking, programs, and partnerships. See mission & focus areas ↑
How do I apply for a grant from Guillermo J Valenzuela Foundation?
The foundation does not accept unsolicited requests; its website says applications are by invitation only. Eligibility and process details are in the grantmaking section of this profile. See how to apply ↑
What is Guillermo J Valenzuela Foundation's EIN?
Guillermo J Valenzuela Foundation's EIN (Employer Identification Number) is 47-4990743. IRS Form 990 filing data is available on this page for 2019–2025.
Does Guillermo J Valenzuela 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 September 2026.
Data update history
(3)
When this profile's IRS filing data changed on Grantable
- Added Form 990-PF for fiscal year 2019 (received by the IRS June 10, 2020)
- Added Form 990-PF for fiscal year 2025 (received by the IRS June 10, 2026)
- IRS filings on file for fiscal years 2020–2024
Live grants for the work Guillermo J Valenzuela Foundation funds
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Cite this profile
Grantable. (2026). Guillermo J Valenzuela Foundation funder profile. GrantGraph. Retrieved October 17, 2026, from https://grantable.co/funders/guillermo-j-valenzuela-foundation-morg_a398ef68b8814c9cb7680a02cf1efbf5
BibTeX
@misc{grantable_474990743_2026,
author = {{Grantable}},
title = {{Guillermo J Valenzuela Foundation funder profile}},
howpublished = {GrantGraph},
year = {2026},
url = {https://grantable.co/funders/guillermo-j-valenzuela-foundation-morg_a398ef68b8814c9cb7680a02cf1efbf5},
note = {Accessed 2026-10-17. 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 Guillermo J Valenzuela 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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