G W Williams Foundation
G W Williams Foundation is a private foundation based in San Mateo, California. Its 2025 filing reports grantmaking to organizations working in areas including education, environmental protection, medical support, human services, and community support.
G W Williams Foundation at a glance
In short: G W Williams Foundation gave $51K across 12 grants in 2025 (avg $4K), mostly in California. 25% of 2025 grantees were new. Source: 2025 IRS Form 990-PF.
- Annual giving (2025)
- $51,000
- +82.1% vs 2024
- Grants made (2025)
- 12
- +20.0% vs 2024
- Average grant
- $4,250
- +51.8% vs 2024
- Median grant
- $1,000
- Total assets
- $440,442
- +7.8% vs 2024
- New grantees (estimate)
- 25% first-time grantees (3 of 12, 2025; small sample)
- Primary geography
- California (90% 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 G W Williams Foundation
- How to Apply
-
The foundation’s 2024 filing says it does not restrict giving to preselected organizations. It lists a written request containing all standard foundation application information as the application materials, names Robert P Berryman Jr as the contact, and says award restrictions are in the attached bylaws.
- Review Cycle
- None stated on the 2024 filing.
- Deadline
- None stated on the 2024 filing.
- Contact
Application contact: Robert P Berryman Jr
Mailing address: 3190 Clearview Way, San Mateo, CA 94402
Phone: (650) 372-9711
Application details from Grantable's research on the foundation's public materials; confirm on its website before applying.
Who G W Williams Foundation funds
How this funder distributes its grants
Top Recipients
Top 10 recipients in 2025
The largest 2025 recipient was San Mateo County Historical Assoc ($30K). Together the top 10 received $49K.
Grant Size Distribution
49 grants across all recorded years
The most common grant size was under $50K: 49 grants of 49 (100%).
Geographic Focus
Where this funder awards grants
The 2025 filing reports that 90% of grant dollars went to California recipients, with 2% each to recipients in Massachusetts, Connecticut, Tennessee, and Washington. The itemized grants also include a $1,000 grant to a Florida recipient.
Grant Distribution by State
Share of 2025 grant dollars across all 12 itemized grants.
Cities
Is G W Williams Foundation open to new grantees?
25%
first-time grantees, 2025
In 2025, 3 of 12 grantees (25%) were first-time recipients. With only 12 grantees, that is a small sample: one grantee more or less moves the share by about 8 points. First grants averaged $1K; repeat grants $5K. How we count
Medians: $1K first-time, $1K repeat.
- 75% of 2025 grantees were also funded in 2024. Method
- Giving grew 122% from 2022 to 2025. Method
- In 2025 it paid out 247% of its IRS minimum distribution (the 5% rule). Method
Estimate from itemized grant lists in IRS Form 990-PF filings (2019–2025). 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
From 2019 to 2025, annual grant giving ranged from $23K (2021) to $51K (2025). In 2025 it made 12 grants totaling $51K.
Grants by year
Grant recipients and amounts by year
| Recipient | Purpose | Amount |
|---|---|---|
| San Mateo County Historical Assoc Redwood City, CA | Education | $30,000 |
| Coastside Land Trust Half Moon Bay, CA | Environment | $5,000 |
| Mills Peninsula Foundation Burlingame, CA | Medical Support | $5,000 |
| Mission Hospice & Home Care San Mateo, CA | Human Services | $3,000 |
| Burlingame Rotary Service Fund Burlingame, CA | Education | $1,000 |
| Jobtrain Menlo Park, CA | Education | $1,000 |
| Leukemia & Lymphoma Society San Francisco, CA | Medical Research | $1,000 |
| Science for Scientists Bedford, MA | Children & Youth | $1,000 |
| Tunnel to Towers Foundation Danbury, CT | Community Support | $1,000 |
| Tenngreen Land Conservancy Nashville, TN | Land Conservation | $1,000 |
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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 |
|---|---|---|---|---|---|---|---|---|
| 2025 | $440,442 | $76,170 | $52,114 | $51,000 | 12 | $51,000 | $16,470 | $20,671 |
| 2024 | $408,386 | $60,159 | $29,055 | $28,000 | 10 | $28,000 | $17,159 | $18,982 |
| 2023 | $372,282 | $17,016 | $23,837 | $23,000 | 9 | $46,000 | $17,016 | $18,295 |
| 2022 | $380,379 | $54,949 | $24,273 | $23,000 | 9 | $23,000 | $2,949 | — |
| 2021 | $325,429 | $1,036 | $25,086 | $23,000 | 9 | — | $36 | $16,630 |
| 2020 | $350,033 | $28,221 | $25,423 | $24,000 | 10 | — | $1,221 | $17,884 |
| 2019 | $377,301 | $35,706 | $30,791 | $29,500 | 9 | — | $6,206 | — |
Under IRS private-foundation payout rules, G W Williams Foundation reported a distributable amount of $21K 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 mission statement for the foundation is provided. Its 2025 grants include support for education, environmental protection, medical support and research, human services, children and youth, community support, land conservation, wildlife research, and hunger relief.
The grantees’ own statements describe some of the work supported. Coastside Land Trust says it works to preserve and protect open-space resources on the San Mateo County coastside. Mission Hospice & Home Care says it provides compassionate support and care in the home. JobTrain says it offers assessment, job-skills training, and career placement. TennGreen Land Conservancy says it conserves land and creates green corridors connecting public lands.
Grantmaking
In filing year 2025, the foundation reported 12 grants totaling $51,000. Grant amounts ranged from $1,000 to $30,000, with a median of $1,000. The largest grant was $30,000 to San Mateo County Historical Association for education. Other notable grants were $5,000 each to Coastside Land Trust for environmental work and Mills Peninsula Foundation for medical support, and $3,000 to Mission Hospice & Home Care for human services.
Leadership & Key People
Leadership team and compensation from IRS filings
The 2025 filing lists Charles E Rosebrook as vice preside, Robert P Berryman Jr as president, Kathryn Williams as secretary, and Zane Fischer as treasurer.
G W Williams Foundation is led by Robert P. Berryman Jr., President since 2021 (on filings since 2019); none of the 4 officers listed in 2025 report compensation.
Officers on the 2025 filing
Robert P. Berryman Jr.
President
Vice President & Treasurer → President, 2021
On filings since 2019
No compensation reported
Charles E. Rosebrook
Vice President
Secretary → Vice President, 2021
On filings since 2019
No compensation reported
Kathryn Williams
Secretary
On filings since 2022
No compensation reported
Zane Fischer
Treasurer
On filings since 2022
No compensation reported
Former officers (2)
- Former: Katherine G. Williams (2021) — Secretary
- Former: Christine A. Williams (2019–2020) — President
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 G W Williams Foundation
How much does G W Williams Foundation give each year?
G W Williams Foundation gave $51K across 12 grants in 2025, according to its 2025 IRS Form 990-PF. In 2024 it gave $28K across 10 grants.
What is G W Williams Foundation's typical grant size?
G W Williams Foundation's median grant in 2025 was $1,000, and its average grant was $4,250, across 12 grants on its 2025 IRS Form 990-PF. Organizations receiving their first grant from G W Williams Foundation that year got $1K on average.
Where does G W Williams Foundation give grants?
G W Williams Foundation gives mostly in California: 90% of the grant dollars itemized on its 2025 IRS Form 990-PF went to recipients there. The most frequent recipient cities were Burlingame, CA (2 grants).
Does G W Williams Foundation give general operating support?
Not in 2025: none of the 12 grants with a stated purpose on G W Williams Foundation's 2025 IRS Form 990-PF were described as general or operating support. Recurring purposes include "Education" (3 grants).
Who are G W Williams Foundation's largest grantees?
G W Williams Foundation's largest 2025 grantees include San Mateo County Historical Assoc ($30,000), Coastside Land Trust ($5,000) and Mills Peninsula Foundation ($5,000), according to its 2025 IRS Form 990-PF. Together they received 78% of its itemized 2025 grant dollars.
How large is G W Williams Foundation?
G W Williams Foundation reported $440K in total assets on its 2025 IRS Form 990-PF. It paid out $51K in qualifying distributions that year, against a required minimum of $21K (roughly 5% of its investment assets).
What does G W Williams Foundation fund?
No mission statement for the foundation is provided. Its 2025 grants include support for education, environmental protection, medical support and research, human services, children and youth, community support, land conservation, wildlife research, and hunger relief. See mission & focus areas ↑
How do I apply for a grant from G W Williams Foundation?
The foundation’s 2024 filing says it does not restrict giving to preselected organizations. Eligibility and process details are in the grantmaking section of this profile. See how to apply ↑
What is G W Williams Foundation's EIN?
G W Williams Foundation's EIN (Employer Identification Number) is 94-6095718. IRS Form 990 filing data is available on this page for 2019–2025.
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 March 6, 2020)
- Added Form 990-PF for fiscal year 2025 (received by the IRS May 13, 2026)
- IRS filings on file for fiscal years 2020–2024
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Cite this profile
Grantable. (2026). G W Williams Foundation funder profile. GrantGraph. Retrieved October 16, 2026, from https://grantable.co/funders/g-w-williams-foundation-morg_fab51ecf5c9f4dd2b4d84c9325d6179a
BibTeX
@misc{grantable_946095718_2026,
author = {{Grantable}},
title = {{G W Williams Foundation funder profile}},
howpublished = {GrantGraph},
year = {2026},
url = {https://grantable.co/funders/g-w-williams-foundation-morg_fab51ecf5c9f4dd2b4d84c9325d6179a},
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 G W Williams 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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