Ronald & Ann Williams Charitable Foundat
The Ronald & Ann Williams Charitable Foundation is a private foundation based in San Francisco, California. Its 2024 grants supported charitable organizations, including organizations providing food, shelter, healthcare, and other community services, as well as medical research and nursing scholarships.
Ronald & Ann Williams Charitable Foundat at a glance
In short: Ronald & Ann Williams Charitable Foundat gave $9.7M across 60 grants in 2024 (avg $161K), mostly in California. Source: 2024 IRS Form 990-PF.
- Annual giving (2024)
- $9,674,000
- +12798.7% vs 2023
- Grants made (2024)
- 60
- +5900.0% vs 2023
- Average grant
- $161,233
- +115.0% vs 2023
- Median grant
- $142,500
- Total assets
- $85,991,671
- -1.5% vs 2023
- Primary geography
- California (94% of itemized 2024 grant dollars)
- Latest 990 filing
- Form 990-PF, 2024 View filing
Data from IRS Form 990-PF, 2024; updated October 2026.
How to apply to Ronald & Ann Williams Charitable Foundat
- Accepts unsolicited proposals
- No
- How to Apply
-
The foundation makes contributions only to preselected charitable organizations and does not accept unsolicited requests for funds.
- Contact
Mailing address: 200 Brannan St 143, San Francisco, CA 94107
Phone: (650) 465-6666
Application details from Grantable's research on the foundation's public materials; confirm on its website before applying.
Who Ronald & Ann Williams Charitable Foundat funds
How this funder distributes its grants
Top Recipients
Top 10 recipients in 2024
The largest 2024 recipient was Samaritan House ($695K across 2 grants). Together the top 10 received $5.4M.
Organizations only. It also paid 2 grants to individuals ($275,000), which are not listed by name.
Grant Size Distribution
151 grants across all recorded years
The most common grant size was in the $100–250K range: 56 grants of 151 (37%).
Geographic Focus
Where this funder awards grants
In 2024, 94% of grant dollars went to recipients in California and 6% to recipients in Connecticut.
Grant Distribution by State
Share of 2024 grant dollars across all 60 itemized grants.
States
Cities
How Ronald & Ann Williams Charitable Foundat gives
- Giving grew 114% from 2021 to 2024. Method
- In 2024 it paid out 193% of its IRS minimum distribution (the 5% rule). 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 2020 to 2024, annual grant giving ranged from $75K (2023) to $9.7M (2024). In 2024 it made 60 grants totaling $9.7M.
Grants by year
Grant recipients and amounts by year
| Recipient | Purpose | Amount |
|---|---|---|
| UCSF Foundation San Francisco, CA | Medical Research | $600,000 |
| Samaritan House Sunnyvale, CA | Fund Non-Profit Clinic Operations | $350,000 |
| Samaritan House Sunnyvale, CA | Fund Non-Profit Clinic Operations | $345,000 |
| Multiple Myloma Research Foundation Norwalk, CT | Myloma Cancer Research and Drug Development | $300,000 |
| Ecumenical Hunger Program East Palo Alto, CA | Fund General Support for Homeless | $300,000 |
| Community Services Agency Mountain View, CA | General Support | $300,000 |
| Second Harvest Food Bank San Jose, CA | Fund General Support for Homeless | $300,000 |
| Family Supportive Housing San Jose, CA | Assistance for the Homeless and Hungry | $300,000 |
| Multiple Myloma Research Foundation Norwalk, CT | Myloma Cancer Research and Drug Development | $300,000 |
| UCSF School of Nursing San Francisco, CA | Fund Nursing Scholarships | $300,000 |
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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 |
|---|---|---|---|---|---|---|---|---|
| 2024 | $85,991,671 | $10,536,635 | $6,219,795 | $9,674,000 | 60 | $8,999,167 | $9,104,291 | $4,657,864 |
| 2023 | $87,319,604 | $6,023,725 | $4,512,355 | $75,000 | 1 | $249,280 | $4,465,682 | $4,531,906 |
| 2022 | $80,639,740 | $6,596,729 | $5,518,584 | $4,525,000 | 30 | $4,661,031 | $4,832,299 | $2,348,275 |
| 2021 | $94,441,052 | $23,018,732 | $5,273,641 | $4,525,000 | 30 | $4,576,993 | $2,897,752 | $4,392,126 |
| 2020 | $84,399,197 | $4,041,910 | $5,278,194 | $4,325,000 | 30 | — | $2,862,576 | $3,984,882 |
Under IRS private-foundation payout rules, Ronald & Ann Williams Charitable Foundat reported a distributable amount of $4.7M for 2024 — 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 mission statement for the foundation is provided. Its 2024 grants show support for organizations working in areas including food assistance, homelessness services, healthcare, medical research, and nursing education.
Grantees describe their own work in these areas. Ecumenical Hunger Program says it provides food, clothing, household essentials, support, and referrals to people in need. Family Supportive Housing says it provides shelter, housing opportunities, and educational support to families. Second Harvest Food Bank describes its work as providing access to nutritious food in collaboration with community partners. These are the grantees’ descriptions, not a stated mission of the foundation.
Grantmaking
In 2024, the foundation reported 60 grants totaling $9,674,000. Grants ranged from $25,000 to $600,000, with a median of $142,500. Notable grants included $600,000 to UCSF Foundation for medical research; $350,000 and $345,000 to Samaritan House for clinic operations; and $300,000 to each of Multiple Myeloma Research Foundation for cancer research and drug development, Ecumenical Hunger Program for general support, and Family Supportive Housing for assistance to people experiencing homelessness and hunger.
Leadership & Key People
Leadership team and compensation from IRS filings
The 2024 filing lists Andrew Robin as president and Mark Franich, Roberto Rosenkranz, Carole Robin, and Alex Antebi as directors.
Ronald & Ann Williams Charitable Foundat is led by Andrew Robin, President since 2023 (on filings since 2020); all 5 officers listed in 2024 are compensated.
Officers on the 2024 filing
Andrew Robin
President
Secretary → President, 2023
On filings since 2020
1 hr/week
$20K (2020) → $75K (2024)
Carole Robin
Director
On filings since 2020
1 hr/week
$20K (2020) → $20K (2024)
Mark Franich
Director
On filings since 2020
1 hr/week
$20K (2020) → $30K (2024)
Roberto Rosenkranz
Director
On filings since 2020
1 hr/week
$20K (2020) → $20K (2024)
Alex Antebi
Director
On filings since 2023
1 hr/week
$10K (2023) → $20K (2024)
Former officers (2)
- Former: Richard Newton (2020–2022) — President
- Former: Andy Robin (2022) — President
Data from IRS Form 990 filings, 2020–2024. "On filings since" is the earliest filing we hold that lists the person; hours are average hours per week as reported.
Compensation Overview
From 2024 IRS filing
The highest reported compensation on the 2024 filing was $75K, to Andrew Robin (President). 5 officers or directors reported compensation on that filing.
Frequently asked questions about Ronald & Ann Williams Charitable Foundat
How much does Ronald & Ann Williams Charitable Foundat give each year?
Ronald & Ann Williams Charitable Foundat gave $9.7M across 60 grants in 2024, according to its 2024 IRS Form 990-PF. In 2023 it gave $75K across 1 grant.
What is Ronald & Ann Williams Charitable Foundat's typical grant size?
Ronald & Ann Williams Charitable Foundat's median grant in 2024 was $142,500, and its average grant was $161,233, across 60 grants on its 2024 IRS Form 990-PF.
Where does Ronald & Ann Williams Charitable Foundat give grants?
Ronald & Ann Williams Charitable Foundat gives mostly in California: 94% of the grant dollars itemized on its 2024 IRS Form 990-PF went to recipients there. The next largest state was Connecticut (6%). The most frequent recipient cities were San Jose, CA (13 grants), Stanford, CA (7 grants), San Francisco, CA (6 grants) and Redwood City, CA (6 grants).
Does Ronald & Ann Williams Charitable Foundat give general operating support?
Yes: 10% of Ronald & Ann Williams Charitable Foundat's 2024 grants with a stated purpose (6 of 60) were for general or operating support, per its 2024 IRS Form 990-PF. Recurring purposes include "Medical Research" (8 grants).
Who are Ronald & Ann Williams Charitable Foundat's largest grantees?
Ronald & Ann Williams Charitable Foundat's largest 2024 grantees include Samaritan House ($695,000 across 2 grants), Multiple Myloma Research Foundation ($600,000 across 2 grants) and UCSF Foundation ($600,000), according to its 2024 IRS Form 990-PF. It also paid 2 grants to individuals ($275,000), which are not listed by name. Together they received 20% of its itemized 2024 grant dollars.
How large is Ronald & Ann Williams Charitable Foundat?
Ronald & Ann Williams Charitable Foundat reported $86.0M in total assets on its 2024 IRS Form 990-PF. It paid out $9.0M in qualifying distributions that year, against a required minimum of $4.7M (roughly 5% of its investment assets).
What does Ronald & Ann Williams Charitable Foundat fund?
No mission statement for the foundation is provided. Its 2024 grants show support for organizations working in areas including food assistance, homelessness services, healthcare, medical research, and nursing education. See mission & focus areas ↑
How do I apply for a grant from Ronald & Ann Williams Charitable Foundat?
The foundation 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 Ronald & Ann Williams Charitable Foundat's EIN?
Ronald & Ann Williams Charitable Foundat's EIN (Employer Identification Number) is 91-2154616. IRS Form 990 filing data is available on this page for 2020–2024.
Does Ronald & Ann Williams Charitable Foundat 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
(1)
When this profile's IRS filing data changed on Grantable
- IRS filings on file for fiscal years 2020–2024
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Cite this profile
Grantable. (2026). Ronald & Ann Williams Charitable Foundat funder profile. GrantGraph. Retrieved October 13, 2026, from https://grantable.co/funders/ronald-and-ann-williams-charitable-foundat-morg_d9a6e5f2121e4c128043dc8ffbd8fa12
BibTeX
@misc{grantable_912154616_2026,
author = {{Grantable}},
title = {{Ronald \& Ann Williams Charitable Foundat funder profile}},
howpublished = {GrantGraph},
year = {2026},
url = {https://grantable.co/funders/ronald-and-ann-williams-charitable-foundat-morg_d9a6e5f2121e4c128043dc8ffbd8fa12},
note = {Accessed 2026-10-13. 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 Ronald & Ann Williams Charitable Foundat'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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