Whittington Seven Oaks Foundation
The Whittington Seven Oaks Foundation is a private foundation based in Yorklyn, Delaware. Its 2025 filing lists grants supporting organizations in Delaware, Pennsylvania, California, and New York, including scientific research, educational, cultural, and other activities described by the recipients.
Whittington Seven Oaks Foundation at a glance
In short: Whittington Seven Oaks Foundation gave $345K across 10 grants in 2025 (avg $35K), mostly in California. Source: 2025 IRS Form 990-PF.
- Annual giving (2025)
- $345,026
- +24.8% vs 2024
- Grants made (2025)
- 10
- +42.9% vs 2024
- Average grant
- $34,503
- -12.7% vs 2024
- Median grant
- $13,000
- Total assets
- $4,670,696
- +0.6% vs 2024
- 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.
How to apply to Whittington Seven Oaks Foundation
- Accepts unsolicited proposals
- Yes
- How to Apply
-
The foundation accepts unsolicited requests. The 2023 filing specifies written materials, no deadline, and no restrictions on awards.
- Contact
Application contact: Marna C Whittington
Mailing address: 2959 Barley Mill Road, Yorklyn, DE 19736
Phone: (302) 235-5800
Application details from Grantable's research on the foundation's public materials; confirm on its website before applying.
Who Whittington Seven Oaks Foundation funds
How this funder distributes its grants
Top Recipients
Top 10 recipients in 2025
The largest 2025 recipient was Salk Institute ($210K). Together the top 10 received $345K.
Grant Size Distribution
29 grants across all recorded years
The most common grant size was under $50K: 21 grants of 29 (72%).
Geographic Focus
Where this funder awards grants
In 2025, 61% of grant dollars went to California recipients, 22% to Delaware, and 17% to Pennsylvania; New York accounted for 0%. The listed 2025 grants included recipients in all four states.
Grant Distribution by State
Share of 2025 grant dollars across all 10 itemized grants.
Cities
How Whittington Seven Oaks Foundation gives
- Giving grew 27% from 2022 to 2025. Method
- In 2025 it paid out 86% of its IRS minimum distribution (the 5% rule). Foundations have until the end of the next year to meet it. 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 2019 to 2025, annual grant giving ranged from $182K (2019) to $345K (2025). In 2025 it made 10 grants totaling $345K.
Grants by year
Grant recipients and amounts by year
| Recipient | Purpose | Amount |
|---|---|---|
| Salk Institute La Jolla, CA | Research in Sciences | $210,000 |
| American Philosophical Society Philadelphia, PA | Annual Fund | $50,000 |
| Nemours Childrens Health Wilmington, DE | Support for Original History | $30,000 |
| University of Delaware Newark, DE | Annual Giving | $20,000 |
| Tower Hill School Wilmington, DE | Annual Giving Fund | $16,000 |
| Goldey-Beacom Wilmington, DE | Scholarship Fund | $10,000 |
| Inspiritec Philadelphia, PA | Annual Fund Contibution | $5,000 |
| Longwood Gardens Kennett Square, PA | Longwood Innovators Fund | $2,026 |
| Kalmar Nyckel Foundation Wilmington, DE | Education Mission | $1,500 |
| Morgan Library Museum New York, NY | Annual Fund Contribution | $500 |
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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 | $4,670,696 | $377,868 | $348,292 | $345,026 | 10 | $345,026 | $256,636 | $400,240 |
| 2024 | $4,641,120 | $636,751 | $279,275 | $276,526 | 7 | $276,525 | $149,996 | $346,608 |
| 2023 | $4,283,644 | $1,056,180 | $256,297 | $249,400 | 4 | $249,400 | $102,407 | $272,149 |
| 2022 | $3,483,761 | $319,975 | $275,570 | $271,820 | 5 | $271,820 | $218,025 | $244,928 |
| 2021 | $3,439,356 | $72,306 | $211,400 | $206,650 | 3 | — | $91,625 | $272,667 |
| 2020 | $3,435,672 | $99,359 | $207,056 | $198,920 | 4 | — | $92,087 | $208,725 |
| 2019 | $3,491,796 | $659,842 | $202,463 | $181,500 | 5 | — | $98,699 | $197,140 |
Under IRS private-foundation payout rules, Whittington Seven Oaks Foundation reported a distributable amount of $400K 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
The available filing does not state a mission for the foundation. Its 2025 grants included support for scientific research, annual funds, a scholarship fund, an education mission, and a garden fund.
Among its grantees, the American Philosophical Society describes its mission as promoting useful knowledge, including by engaging distinguished people in science, the humanities, social sciences, and civic and cultural affairs. The Kalmar Nyckel Foundation describes itself as a volunteer-based educational organization that preserves and promotes Delaware and Delaware Valley cultural and maritime heritage. INSPIRITEC describes its mission as providing contact center and help desk services while employing professionals with disabilities, veterans, and disadvantaged individuals.
Grantmaking
In filing year 2025, the foundation gave $345,026 through 10 grants. Grants ranged from $500 to $210,000, with a median of $13,000. The largest awards included $210,000 to the Salk Institute for research in sciences, $50,000 to the American Philosophical Society for its annual fund, $30,000 to Nemours Children’s Health for support for original history, and $20,000 to the University of Delaware for annual giving. Other listed recipients included Tower Hill School ($16,000), Goldey-Beacom ($10,000), INSPIRITEC ($5,000), Longwood Gardens ($2,026), Kalmar Nyckel Foundation ($1,500), and Morgan Library Museum ($500).
The foundation’s 2023 filing states that it does not restrict giving to preselected organizations and lists no restrictions on awards. It calls for a written submission to Marna C. Whittington; no deadline is listed.
Leadership & Key People
Leadership team and compensation from IRS filings
The 2025 filing lists Marna C. Whittington as president and Thomas D. Whittington as secretary.
Whittington Seven Oaks Foundation is led by Marna C. Whittington, President on every filing since 2019; none of the 2 officers listed in 2025 report compensation.
Officers on the 2025 filing
Marna C. Whittington
President
On filings since 2019
No compensation reported
Thomas D. Whittington
Secretary
On filings since 2019
No compensation reported
Former officers (1)
- Former: Patricia Rappucci (2019–2023) — Treasurer
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 Whittington Seven Oaks Foundation
How much does Whittington Seven Oaks Foundation give each year?
Whittington Seven Oaks Foundation gave $345K across 10 grants in 2025, according to its 2025 IRS Form 990-PF. In 2024 it gave $277K across 7 grants.
What is Whittington Seven Oaks Foundation's typical grant size?
Whittington Seven Oaks Foundation's median grant in 2025 was $13,000, and its average grant was $34,503, across 10 grants on its 2025 IRS Form 990-PF.
Where does Whittington Seven Oaks Foundation give grants?
Whittington Seven Oaks 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 Delaware (22%) and Pennsylvania (17%). The most frequent recipient cities were Wilmington, DE (4 grants) and Philadelphia, PA (2 grants).
Does Whittington Seven Oaks Foundation give general operating support?
Yes: 30% of Whittington Seven Oaks Foundation's 2025 grants with a stated purpose (3 of 10) were for general or operating support, per its 2025 IRS Form 990-PF.
Who are Whittington Seven Oaks Foundation's largest grantees?
Whittington Seven Oaks Foundation's largest 2025 grantees include Salk Institute ($210,000), American Philosophical Society ($50,000) and Nemours Childrens Health ($30,000), according to its 2025 IRS Form 990-PF. Together they received 84% of its itemized 2025 grant dollars.
How large is Whittington Seven Oaks Foundation?
Whittington Seven Oaks Foundation reported $4.7M in total assets on its 2025 IRS Form 990-PF. It paid out $345K in qualifying distributions that year, against a required minimum of $400K (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 Whittington Seven Oaks Foundation fund?
The available filing does not state a mission for the foundation. Its 2025 grants included support for scientific research, annual funds, a scholarship fund, an education mission, and a garden fund. See mission & focus areas ↑
How do I apply for a grant from Whittington Seven Oaks Foundation?
The foundation accepts unsolicited requests. Eligibility and process details are in the grantmaking section of this profile. See how to apply ↑
What is Whittington Seven Oaks Foundation's EIN?
Whittington Seven Oaks Foundation's EIN (Employer Identification Number) is 47-0854705. IRS Form 990 filing data is available on this page for 2019–2025.
Does Whittington Seven Oaks Foundation accept unsolicited proposals?
Yes, 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
(8)
When this profile's IRS filing data changed on Grantable
- Updated Form 990-PF for fiscal year 2019 (received by the IRS January 31, 2020)
- Updated Form 990-PF for fiscal year 2020 (received by the IRS February 6, 2021)
- Updated Form 990-PF for fiscal year 2021 (received by the IRS February 24, 2022)
- Updated Form 990-PF for fiscal year 2022 (received by the IRS February 11, 2023)
- Updated Form 990-PF for fiscal year 2023 (received by the IRS January 29, 2024)
- Updated Form 990-PF for fiscal year 2024 (received by the IRS February 1, 2025)
- Updated Form 990-PF for fiscal year 2025 (received by the IRS February 14, 2026)
- IRS filings on file for fiscal years 2019–2025
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Cite this profile
Grantable. (2026). Whittington Seven Oaks Foundation funder profile. GrantGraph. Retrieved October 16, 2026, from https://grantable.co/funders/whittington-seven-oaks-foundation-morg_b59b299d97564d638ba0c0bd8033e15f
BibTeX
@misc{grantable_470854705_2026,
author = {{Grantable}},
title = {{Whittington Seven Oaks Foundation funder profile}},
howpublished = {GrantGraph},
year = {2026},
url = {https://grantable.co/funders/whittington-seven-oaks-foundation-morg_b59b299d97564d638ba0c0bd8033e15f},
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 Whittington Seven Oaks 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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