Harrington Family Foundation
The Harrington Family Foundation is a private foundation based in Los Altos, California. Its 2025 filing lists grants to organizations working in areas including health care, conservation, community services, and public information.
Harrington Family Foundation at a glance
In short: Harrington Family Foundation gave $469K across 30 grants in 2025 (avg $16K), mostly in California. 90% of 2025 grantees were new. Source: 2025 IRS Form 990-PF.
- Annual giving (2025)
- $469,373
- Grants made (2025)
- 30
- Average grant
- $15,646
- Median grant
- $10,000
- Total assets
- $14,446,703
- +21.3% vs 2024
- New grantees (estimate)
- 90% first-time grantees (27 of 30, 2025)
- Primary geography
- California (61% 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 Harrington Family Foundation
- 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: 105 Fremont Avenue A, Los Altos, CA 94022
Phone: (650) 941-6900
Application details from Grantable's research on the foundation's public materials; confirm on its website before applying.
Who Harrington Family Foundation funds
How this funder distributes its grants
Top Recipients
Top 10 recipients in 2025
The largest 2025 recipient was Planned Parenthood Mar Monte ($50K). Together the top 10 received $310K.
Grant Size Distribution
89 grants across all recorded years
The most common grant size was under $50K: 84 grants of 89 (94%).
Geographic Focus
Where this funder awards grants
In 2025, California organizations received 61% of grant dollars. Other recipient-state shares were District of Columbia, 11%; Texas, 9%; Florida, 9%; and New Mexico, 4%.
Grant Distribution by State
Share of 2025 grant dollars across all 30 itemized grants.
States
Cities
Is Harrington Family Foundation open to new grantees?
90%
first-time grantees, 2025
In 2025, 27 of 30 grantees (90%) were first-time recipients. First grants averaged $14K; repeat grants $32K. How we count
Medians: $10K first-time, $35K repeat.
- Giving grew 54% from 2022 to 2025. Method
- In 2025 it paid out 84% of its IRS minimum distribution (the 5% rule). Foundations have until the end of the next year to meet it. Method
Estimate from itemized grant lists in IRS Form 990-PF filings (2021–2025). 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 2021 to 2025, annual grant giving ranged from $297K (2023) to $469K (2025). In 2025 it made 30 grants totaling $469K.
Grants by year
Grant recipients and amounts by year
| Recipient | Purpose | Amount |
|---|---|---|
| Planned Parenthood Mar Monte San Jose, CA | Health Care Services | $50,000 |
| Rady Children's Hospital Foundation San Diego, CA | To restore, sustain and enhance the health and developmental potential of children | $40,000 |
| UCSF Foundation-Carol Franc Buck San Francisco, CA | Breast Care Studies | $40,000 |
| Women's Emergency Network Coral Gables, FL | Provides Financial Assistance | $40,000 |
| Wildlife Conservation Network Los Altos, CA | Elephant Crisis Fund | $34,875 |
| Planned Parenthood of the Pacific Southwest Riverside, CA | Health Care Services | $25,000 |
| Del Mar Community Connections Del Mar, CA | Community Assistance | $20,000 |
| Luciente Abiquiu, NM | Assisting underserved communities and providing fiscal sponsorship to other organizations with similar goals. | $20,000 |
| Magdalena Ecke Family YMCA Encinitas, CA | Strengthening communities through youth development, healthy living, and social responsibility | $20,000 |
| Oceana Washington, DC | Ocean Conservation | $20,000 |
Ready to take the next step with Harrington Family Foundation?
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 | $14,446,703 | $3,508,877 | $969,841 | $469,373 | 30 | $494,365 | $246,664 | $591,488 |
| 2024 | $11,913,045 | $1,967,118 | $365,540 | — | — | $14,534 | $355,873 | $499,771 |
| 2023 | $11,053,837 | $1,865,074 | $625,589 | $297,387 | 20 | $301,537 | $238,955 | $465,178 |
| 2022 | $10,419,773 | $2,932,062 | $637,500 | $304,588 | 17 | $315,593 | $188,660 | $466,381 |
| 2021 | $8,862,696 | $1,396,425 | $724,332 | $408,869 | 22 | — | $224,672 | $458,061 |
Under IRS private-foundation payout rules, Harrington Family Foundation reported a distributable amount of $591K 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
The foundation’s own mission is not stated in the available information. Its 2025 grants included health care services, breast care studies, children’s health and development, elephant conservation, ocean conservation, community assistance, and government transparency.
Grantees’ own descriptions provide further context. Planned Parenthood Mar Monte says it provides health care and education and works to expand rights and access. The Wildlife Conservation Network says it connects conservationists and supporters and provides resources and tools for conservation work. Del Mar Community Connections describes its work as helping maturing seniors live safely and independently at home.
Grantmaking
In filing year 2025, the foundation reported 30 grants totaling $469,373. Grant amounts ranged from $5,000 to $50,000, with a median of $10,000. The largest grants included $50,000 to Planned Parenthood Mar Monte for health care services; $40,000 each to Rady Children’s Hospital Foundation and UCSF Foundation-Carol Franc Buck; and $40,000 to Women’s Emergency Network to provide financial assistance.
Other notable grants included $34,875 to Wildlife Conservation Network for its Elephant Crisis Fund, $25,000 to Planned Parenthood of the Pacific Southwest for health care services, and $20,000 each to Del Mar Community Connections, Luciente, Magdalena Ecke Family YMCA, and Oceana. The foundation also gave $15,000 to Austin Film Society and $10,000 to Cal Matters.
Leadership & Key People
Leadership team and compensation from IRS filings
The 2025 filing lists Thomas E Harrington as president, Susan C Harrington as vice president, Jonathan Harrington as CFO, and Katherine M Harrington and Robin C Quill as directors.
Harrington Family Foundation is led by Thomas E. Harrington, President on every filing since 2021; none of the 5 officers listed in 2025 report compensation.
Officers on the 2025 filing
Thomas E. Harrington
President
On filings since 2021
No compensation reported
Katherine M. Harrington
Director
On filings since 2021
No compensation reported
Robin C. Quill
Director
On filings since 2021
No compensation reported
Jonathan Harrington
CFO
On filings since 2021
No compensation reported
Susan C. Harrington
Vice President
On filings since 2021
No compensation reported
Data from IRS Form 990 filings, 2021–2025. "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 Harrington Family Foundation
How much does Harrington Family Foundation give each year?
Harrington Family Foundation gave $469K across 30 grants in 2025, according to its 2025 IRS Form 990-PF.
What is Harrington Family Foundation's typical grant size?
Harrington Family Foundation's median grant in 2025 was $10,000, and its average grant was $15,646, across 30 grants on its 2025 IRS Form 990-PF. Organizations receiving their first grant from Harrington Family Foundation that year got $14K on average.
Where does Harrington Family Foundation give grants?
Harrington Family Foundation gives mostly in California: 61% of the grant dollars itemized on its 2025 IRS Form 990-PF went to recipients there. The next largest states were District of Columbia (11%) and Texas (9%). The most frequent recipient cities were Austin, TX (5 grants), Washington, DC (4 grants), Del Mar, CA (3 grants) and San Francisco, CA (2 grants).
Does Harrington Family Foundation give general operating support?
Not in 2025: none of the 30 grants with a stated purpose on Harrington Family Foundation's 2025 IRS Form 990-PF were described as general or operating support.
Who are Harrington Family Foundation's largest grantees?
Harrington Family Foundation's largest 2025 grantees include Planned Parenthood Mar Monte ($50,000), Rady Children's Hospital Foundation ($40,000) and UCSF Foundation-Carol Franc Buck ($40,000), according to its 2025 IRS Form 990-PF. Together they received 28% of its itemized 2025 grant dollars.
How large is Harrington Family Foundation?
Harrington Family Foundation reported $14.4M in total assets on its 2025 IRS Form 990-PF. It paid out $494K in qualifying distributions that year, against a required minimum of $591K (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 Harrington Family Foundation fund?
The foundation’s own mission is not stated in the available information. Its 2025 grants included health care services, breast care studies, children’s health and development, elephant conservation, ocean conservation, community assistance, and government transparency. See mission & focus areas ↑
How do I apply for a grant from Harrington Family Foundation?
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 Harrington Family Foundation's EIN?
Harrington Family Foundation's EIN (Employer Identification Number) is 26-1469601. IRS Form 990 filing data is available on this page for 2021–2025.
Does Harrington 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
(1)
When this profile's IRS filing data changed on Grantable
- IRS filings on file for fiscal years 2021–2025
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Cite this profile
Grantable. (2026). Harrington Family Foundation funder profile. GrantGraph. Retrieved October 11, 2026, from https://grantable.co/funders/harrington-family-foundation-morg_34594ed5a9e94278be7b0dd44e4aa56d
BibTeX
@misc{grantable_261469601_2026,
author = {{Grantable}},
title = {{Harrington Family Foundation funder profile}},
howpublished = {GrantGraph},
year = {2026},
url = {https://grantable.co/funders/harrington-family-foundation-morg_34594ed5a9e94278be7b0dd44e4aa56d},
note = {Accessed 2026-10-11. 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 Harrington 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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