Wendell Family Foundation

Private foundation · Grantmaker San Ramon, CA EIN: 94-3374830

Wendell Family Foundation is a private foundation based in San Ramon, California. It gives grants to charitable organizations, including universities, schools, cultural institutions, and organizations serving communities.

Wendell Family Foundation at a glance

In short: Wendell Family Foundation gave $903K across 51 grants in 2025 (avg $18K), top state California. 31% of 2025 grantees were new. Source: 2025 IRS Form 990-PF.

Annual giving (2025)
$902,950
+1.8% vs 2024
Grants made (2025)
51
+27.5% vs 2024
Average grant
$17,705
-20.1% vs 2024
Median grant
$4,000
Total assets
$2,880,410
+19.1% vs 2024
New grantees (estimate)
31% first-time grantees (16 of 51, 2025)
Primary geography
California (43% of itemized 2025 grant dollars)
Latest 990 filing
Form 990-PF, 2025 View filing

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

How to apply to Wendell 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: 830 Sutter Creek Ln, San Ramon, CA 94583-2671
Phone: (650) 854-1000

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

Who Wendell Family Foundation funds

How this funder distributes its grants

Top Recipients

Top 10 recipients in 2025

Princeton University: $260KPrinceton University$260KGolden Gate National Parks Conservancy: $185KGolden Gate National ParksConservancy$185KSt Paul's Episcopal Church: $79KSt Paul's Episcopal Church$79KUCSF Foundation: $51KUCSF Foundation$51KSeason of Sharing Fund: $50KSeason of Sharing Fund$50KJohns Hopkins Medical School: $50KJohns Hopkins Medical School$50KHarvard Business School: $25KHarvard Business School$25KHarvard Buisness School MBA Class of 1976 Inc: $25KHarvard Buisness School MBAClass of 1976 Inc$25KThe Exploratorium: $25KThe Exploratorium$25KPrinceton in Africa: $10KPrinceton in Africa$10K

The largest 2025 recipient was Princeton University ($260K). Together the top 10 received $760K.

Grant Size Distribution

289 grants across all recorded years

268<$50K12$50–100K5$100–250K4$250–500K$500K–1M$1–5M$5M+

The most common grant size was under $50K: 268 grants of 289 (93%).

Geographic Focus

Where this funder awards grants

In 2025, 43% of grant dollars went to recipients in California, 31% to New Jersey, 13% to Massachusetts, 6% to Maryland, and 3% to Maine.

Grant Distribution by State

25states

Share of 2025 grant dollars across all 51 itemized grants.

Cities

San FranciscoPrincetonNew YorkBostonAtlantaCambridgePalo AltoWashingtonHanoverLowellNeedhamNovatoOaklandBedfordBerkeleyMiamiSparksBaltimoreHoustonMountain View

Is Wendell Family Foundation open to new grantees?

31%

first-time grantees, 2025

In 2025, 16 of 51 grantees (31%) were first-time recipients. First grants averaged $12K; repeat grants $20K. How we count

Medians: $5K first-time, $3K repeat.

  • 45% of 2025 grantees were also funded in 2024. Method
  • Giving held roughly steady from 2022 to 2025 (+14%). Method
  • In 2025 it paid out 440% of 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$1M87 grants2020 76 grants2021 66 grants2022 56 grants2023 40 grants2024 51 grants2025

From 2020 to 2025, annual grant giving ranged from $602K (2020) to $903K (2025). In 2025 it made 51 grants totaling $903K.

Grants by year

Grant recipients and amounts by year

RecipientPurposeAmount
Princeton University Princeton, NJGeneral Purposes$260,000
Golden Gate National Parks Conservancy San Francisco, CAGeneral Purposes$185,000
St Paul's Episcopal Church Bedford, MAGeneral Purposes$78,500
UCSF Foundation San Francisco, CAGeneral Purposes$51,000
Season of Sharing Fund San Francisco, CAGeneral Purposes$50,000
Johns Hopkins Medical School Baltimore, MDGeneral Purposes$50,000
Harvard Business School Boston, MAGeneral Purposes$25,000
Harvard Buisness School MBA Class of 1976 Inc Woolwich, MEGeneral Purposes$25,000
The Exploratorium San Francisco, CAGeneral Purposes$25,000
Princeton in Africa Princeton, NJGeneral Purposes$10,000
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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$2,880,410$1,377,910$915,608$902,95051$902,950$2,208,249$204,997
2024$2,418,108$744,162$892,478$886,58140$886,581$742,062$190,338
2023$2,566,424$924,277$751,764$721,62756$721,627$778,277$160,027
2022$2,393,911$1,893,312$803,161$795,54666$795,546$1,347,990$181,575
2021$4,303,760$1,728,777$661,557$658,97776$658,977$770,932$228,218
2020$3,236,540$913,831$651,618$602,46687—$791,755$173,051

Under IRS private-foundation payout rules, Wendell Family Foundation reported a distributable amount of $205K 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 is provided. The 2025 grants show support for a range of organizations. For example, Golden Gate National Parks Conservancy describes itself as a nonprofit partner of the National Park Service supporting the Golden Gate National Recreation Area. The Exploratorium describes its work as creating inquiry-based learning experiences through science, art, and human perception. The San Francisco Education Fund says it advances equitable education through learning programs, community support, and financial resources for teachers, students, and schools.

Grantmaking

In 2025, the foundation made 51 grants totaling $902,950. Grants ranged from $100 to $260,000, with a median of $4,000. The largest grants included $260,000 to Princeton University, $185,000 to Golden Gate National Parks Conservancy, $78,500 to St Paul’s Episcopal Church, and $51,000 to UCSF Foundation. Each was listed for general purposes.

Leadership & Key People

Leadership team and compensation from IRS filings

The 2025 filing lists Peter Wendell as president, director, and secretary. It lists Lynn Wendell, Christopher Wendell, Brian Wendell, Jennifer Lentz, Emily Wendell, Patrick Wendell, and Carolyn A. Wendell as directors.

Wendell Family Foundation is led by Peter Wendell, President, Director & Secretary on every filing since 2020; none of the 8 officers listed in 2025 report compensation.

Officers on the 2025 filing

  • Peter Wendell

    President, Director & Secretary

    On filings since 2020

    4 hrs/week

    No compensation reported

  • Brian Wendell

    Director

    On filings since 2020

    0.3 hrs/week

    No compensation reported

  • Carolyn A. Wendell

    Director

    On filings since 2020

    0.3 hrs/week

    No compensation reported

  • Christopher Wendell

    Director

    On filings since 2020

    0.3 hrs/week

    No compensation reported

  • Emily Wendell

    Director

    On filings since 2020

    0.3 hrs/week

    No compensation reported

  • Jennifer Lentz

    Director

    On filings since 2020

    0.3 hrs/week

    No compensation reported

  • Lynn Wendell

    Director

    On filings since 2020

    2 hrs/week

    No compensation reported

  • Patrick Wendell

    Director

    On filings since 2020

    0.3 hrs/week

    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 Wendell Family Foundation

How much does Wendell Family Foundation give each year?

Wendell Family Foundation gave $903K across 51 grants in 2025, according to its 2025 IRS Form 990-PF. In 2024 it gave $887K across 40 grants.

What is Wendell Family Foundation's typical grant size?

Wendell Family Foundation's median grant in 2025 was $4,000, and its average grant was $17,705, across 51 grants on its 2025 IRS Form 990-PF. Organizations receiving their first grant from Wendell Family Foundation that year got $12K on average.

Where does Wendell Family Foundation give grants?

Wendell Family Foundation's top state is California, with 43% of the grant dollars itemized on its 2025 IRS Form 990-PF. The next largest states were New Jersey (31%) and Massachusetts (13%). The most frequent recipient cities were San Francisco, CA (16 grants), Princeton, NJ (6 grants), New York, NY (3 grants) and Boston, MA (2 grants).

Does Wendell Family Foundation give general operating support?

Yes: 100% of Wendell Family Foundation's 2025 grants with a stated purpose (51 of 51) were for general or operating support, per its 2025 IRS Form 990-PF.

Who are Wendell Family Foundation's largest grantees?

Wendell Family Foundation's largest 2025 grantees include Princeton University ($260,000), Golden Gate National Parks Conservancy ($185,000) and St Paul's Episcopal Church ($78,500), according to its 2025 IRS Form 990-PF. Together they received 58% of its itemized 2025 grant dollars.

How large is Wendell Family Foundation?

Wendell Family Foundation reported $2.9M in total assets on its 2025 IRS Form 990-PF. It paid out $903K in qualifying distributions that year, against a required minimum of $205K (roughly 5% of its investment assets).

What does Wendell Family Foundation fund?

No mission statement is provided. The 2025 grants show support for a range of organizations. For example, Golden Gate National Parks Conservancy describes itself as a nonprofit partner of the National Park Service supporting the Golden Gate National Recreation Area. See mission & focus areas ↑

How do I apply for a grant from Wendell 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 Wendell Family Foundation's EIN?

Wendell Family Foundation's EIN (Employer Identification Number) is 94-3374830. IRS Form 990 filing data is available on this page for 2020–2025.

Does Wendell 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

(6)

When this profile's IRS filing data changed on Grantable

  1. Updated Form 990-PF for fiscal year 2020 (received by the IRS July 23, 2021)
  2. Updated Form 990-PF for fiscal year 2021 (received by the IRS May 13, 2022)
  3. Updated Form 990-PF for fiscal year 2022 (received by the IRS October 13, 2023)
  4. Updated Form 990-PF for fiscal year 2023 (received by the IRS May 13, 2024)
  5. Updated Form 990-PF for fiscal year 2024 (received by the IRS May 8, 2025)
  6. Added Form 990-PF for fiscal year 2025 (received by the IRS May 15, 2026)

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Cite this profile

Grantable. (2026). Wendell Family Foundation funder profile. GrantGraph. Retrieved October 16, 2026, from https://grantable.co/funders/wendell-family-foundation-morg_4d8c862e5ca64bed9f43759b98925d37

BibTeX
@misc{grantable_943374830_2026,
  author       = {{Grantable}},
  title        = {{Wendell Family Foundation funder profile}},
  howpublished = {GrantGraph},
  year         = {2026},
  url          = {https://grantable.co/funders/wendell-family-foundation-morg_4d8c862e5ca64bed9f43759b98925d37},
  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 Wendell 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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