Clarke Hook Foundation
Clarke Hook Foundation is a private foundation based in Chantilly, Virginia. Its 2025 filing lists $135,000 in grants to charitable organizations, with stated purposes including assistance for single mothers, people with addiction, education, care for children, legal assistance, and protection of children from gun violence.
Clarke Hook Foundation at a glance
In short: Clarke Hook Foundation gave $135K across 11 grants in 2025 (avg $12K), top state Maryland. 0% of 2025 grantees were new. Source: 2025 IRS Form 990-PF.
- Annual giving (2025)
- $135,000
- +3.8% vs 2024
- Grants made (2025)
- 11
- +10.0% vs 2024
- Average grant
- $12,273
- -5.6% vs 2024
- Median grant
- $15,000
- Total assets
- $2,317,572
- +1.7% vs 2024
- New grantees (estimate)
- 0% first-time grantees (0 of 10, 2025; small sample)
- Primary geography
- Maryland (22% 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 Clarke Hook 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: 14506-E Lee Road, Chantilly, VA 20151-1635
Phone: (703) 378-8500
Application details from Grantable's research on the foundation's public materials; confirm on its website before applying.
Who Clarke Hook Foundation funds
How this funder distributes its grants
Top Recipients
Top 10 recipients in 2025
The largest 2025 recipient was Rosa Health Clinic ($20K). Together the top 10 received $120K.
Organizations only. It also paid 1 grant to individuals ($15,000), which are not listed by name.
Grant Size Distribution
48 grants across all recorded years
The most common grant size was under $50K: 48 grants of 48 (100%).
Geographic Focus
Where this funder awards grants
The 2025 grants went to organizations in multiple states and Washington, DC. By share of grant dollars, Maryland received 22%, Virginia 19%, Delaware 15%, and Pennsylvania and Ohio 11% each. The listed 2025 recipients also include organizations in Wyoming, Georgia, Connecticut, and Washington, DC.
Grant Distribution by State
Share of 2025 grant dollars across all 11 itemized grants.
States
Cities
Is Clarke Hook Foundation open to new grantees?
0%
first-time grantees, 2025
In 2025, 0 of 10 grantees (0%) were first-time recipients. With only 10 grantees, that is a small sample: one grantee more or less moves the share by about 10 points. How we count
- 90% of 2025 grantees were also funded in 2024. Method
- Giving held roughly steady from 2022 to 2025 (+8%). Method
- In 2025 it paid out 104% 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
From 2020 to 2025, annual grant giving ranged from $125K (2022) to $135K (2025). In 2025 it made 11 grants totaling $135K.
Grants by year
Grant recipients and amounts by year
| Recipient | Purpose | Amount |
|---|---|---|
| Rosa Health Clinic Georgetown, DE | Assistance/ Care for Single Mothers | $20,000 |
| Father Martin's Ashley Havre De Grace, MD | Assistance for Persons with Addiction | $15,000 |
| 1 grant to individuals Recipients not named | — | $15,000 |
| St Anne's Infant Home Hyattsville, MD | Care for Infants and Children | $15,000 |
| St Joseph's Center Scranton, PA | Treatment/ Care for Young Adults | $15,000 |
| The Sisters of Notre Dame Cincinnati, OH | Education/ Social Assistance for Women and Children | $15,000 |
| Matthew Shepard Foundation Casper, WY | General Purpose Grant | $10,000 |
| Southern Center for Human Rights Atlanta, GA | Legal Assistance for Poor and Disadvantaged | $10,000 |
| St Mark Catholic School Vienna, VA | General Purpose Grant | $10,000 |
| Sandy Hook Promise Foundation Newtown, CT | Protect Children from Gun Violence | $5,000 |
Ready to take the next step with Clarke Hook 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 | $2,317,572 | $203,224 | $163,993 | $135,000 | 11 | $145,828 | $186,534 | $139,653 |
| 2024 | $2,278,341 | $119,756 | $155,765 | $130,000 | 10 | $138,142 | $104,363 | $133,937 |
| 2023 | $2,314,468 | $82,639 | $149,927 | $125,000 | 9 | $135,564 | $68,524 | $123,468 |
| 2022 | $2,382,018 | $84,450 | $148,949 | $125,000 | 9 | $134,150 | $68,175 | $126,800 |
| 2021 | $2,446,635 | $135,734 | $160,111 | $130,000 | 9 | $139,054 | $120,332 | $129,686 |
| 2020 | $2,471,012 | $350,568 | $147,048 | $130,000 | 10 | — | $342,692 | $115,808 |
Under IRS private-foundation payout rules, Clarke Hook Foundation reported a distributable amount of $140K 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 separate mission statement is provided. The foundation’s 2025 grants include support for organizations addressing education, health and social services, legal assistance, and other charitable purposes. Among its grantees, St. Joseph’s Center describes its work as providing rehabilitation and developmental services, primarily to residents of Lackawanna and Luzerne counties in Pennsylvania. The Southern Center for Human Rights says it works for equality, dignity, and justice for people impacted by the criminal legal system in the Deep South. World Central Kitchen describes its work as providing meals in response to humanitarian, climate, and community crises. The Matthew Shepard Foundation says its mission is to replace hate with understanding, compassion, and acceptance and to educate others about diversity and respect.
Grantmaking
In 2025, the foundation reported 11 grants totaling $135,000. Grants ranged from $5,000 to $20,000, with a median of $15,000.
Notable 2025 grants included $20,000 to Rosa Health Clinic for assistance and care for single mothers; $15,000 each to Father Martin’s Ashley for assistance for people with addiction, an individual recipient Catholic High School for educational assistance, St. Anne’s Infant Home for care for infants and children, St. Joseph’s Center for treatment and care for young adults, and the Sisters of Notre Dame for education and social assistance for women and children. Other grants included $10,000 each to the Matthew Shepard Foundation, Southern Center for Human Rights, and St. Mark Catholic School, and $5,000 each to Sandy Hook Promise Foundation and World Central Kitchen.
Leadership & Key People
Leadership team and compensation from IRS filings
The 2025 filing lists Mary C. Zigo as president, Helen C. Helton as vice president, and Thomas J. O’Hara Jr. as treasurer/secretary.
Clarke Hook Foundation is led by Mary C. Zigo, President on every filing since 2020; all 3 officers listed in 2025 are compensated.
Officers on the 2025 filing
Mary C. Zigo
President
On filings since 2020
2 hrs/week
$3K (2020) → $3K (2025)
Helen C. Helton
Vice President
On filings since 2020
1 hr/week
$2K (2020) → $2K (2025)
Thomas J. O'Hara Jr.
Treasurer & Secretary
On filings since 2020
1 hr/week
$2K (2020) → $2K (2025)
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.
Compensation Overview
From 2025 IRS filing
The highest reported compensation on the 2025 filing was $3K, to Mary C Zigo (President). 3 officers or directors reported compensation on that filing.
Frequently asked questions about Clarke Hook Foundation
How much does Clarke Hook Foundation give each year?
Clarke Hook Foundation gave $135K across 11 grants in 2025, according to its 2025 IRS Form 990-PF. In 2024 it gave $130K across 10 grants.
What is Clarke Hook Foundation's typical grant size?
Clarke Hook Foundation's median grant in 2025 was $15,000, and its average grant was $12,273, across 11 grants on its 2025 IRS Form 990-PF.
Where does Clarke Hook Foundation give grants?
Clarke Hook Foundation's top state is Maryland, with 22% of the grant dollars itemized on its 2025 IRS Form 990-PF. The next largest states were Virginia (19%) and Delaware (15%).
Does Clarke Hook Foundation give general operating support?
Yes: 27% of Clarke Hook Foundation's 2025 grants with a stated purpose (3 of 11) were for general or operating support, per its 2025 IRS Form 990-PF.
Who are Clarke Hook Foundation's largest grantees?
Clarke Hook Foundation's largest 2025 grantees include Rosa Health Clinic ($20,000), Father Martin's Ashley ($15,000) and St Anne's Infant Home ($15,000), according to its 2025 IRS Form 990-PF. It also paid 1 grant to individuals ($15,000), which are not listed by name. Together they received 37% of its itemized 2025 grant dollars.
How large is Clarke Hook Foundation?
Clarke Hook Foundation reported $2.3M in total assets on its 2025 IRS Form 990-PF. It paid out $146K in qualifying distributions that year, against a required minimum of $140K (roughly 5% of its investment assets).
What does Clarke Hook Foundation fund?
No separate mission statement is provided. The foundation’s 2025 grants include support for organizations addressing education, health and social services, legal assistance, and other charitable purposes. Among its grantees, St. See mission & focus areas ↑
How do I apply for a grant from Clarke Hook 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 Clarke Hook Foundation's EIN?
Clarke Hook Foundation's EIN (Employer Identification Number) is 54-1868557. IRS Form 990 filing data is available on this page for 2020–2025.
Does Clarke Hook 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
(6)
When this profile's IRS filing data changed on Grantable
- Updated Form 990-PF for fiscal year 2020 (received by the IRS October 21, 2021)
- Updated Form 990-PF for fiscal year 2021 (received by the IRS May 13, 2022)
- Updated Form 990-PF for fiscal year 2022 (received by the IRS May 10, 2023)
- Updated Form 990-PF for fiscal year 2023 (received by the IRS May 14, 2024)
- Updated Form 990-PF for fiscal year 2024 (received by the IRS May 12, 2025)
- Added Form 990-PF for fiscal year 2025 (received by the IRS May 8, 2026)
Explore Open Grants
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Cite this profile
Grantable. (2026). Clarke Hook Foundation funder profile. GrantGraph. Retrieved October 15, 2026, from https://grantable.co/funders/clarke-hook-foundation-morg_c3ff5a0e94a143d2bf3adaf378f4d946
BibTeX
@misc{grantable_541868557_2026,
author = {{Grantable}},
title = {{Clarke Hook Foundation funder profile}},
howpublished = {GrantGraph},
year = {2026},
url = {https://grantable.co/funders/clarke-hook-foundation-morg_c3ff5a0e94a143d2bf3adaf378f4d946},
note = {Accessed 2026-10-15. 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 Clarke Hook 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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