Aaron and Patricia Blumberg Foundation
The Aaron and Patricia Blumberg Foundation is a private foundation based in Wilmington, Delaware. Its 2025 filing reports grants to organizations working in areas including wildlife conservation, environmental protection, human rights, and humanitarian response.
Aaron and Patricia Blumberg Foundation at a glance
In short: Aaron and Patricia Blumberg Foundation gave $432K across 27 grants in 2025 (avg $16K), top state District of Columbia. 4% of 2025 grantees were new. Source: 2025 IRS Form 990-PF.
- Annual giving (2025)
- $431,500
- +0.6% vs 2024
- Grants made (2025)
- 27
- +0.0% vs 2024
- Average grant
- $15,981
- +0.6% vs 2024
- Median grant
- $10,000
- Total assets
- $1,245,193
- -19.7% vs 2024
- New grantees (estimate)
- 4% first-time grantees (1 of 27, 2025)
- Primary geography
- District of Columbia (41% 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 Aaron and Patricia Blumberg 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: Foundation Source 501 Silverside Rd, Wilmington, DE 19809-1377
Phone: (800) 839-1754
Application details from Grantable's research on the foundation's public materials; confirm on its website before applying.
Who Aaron and Patricia Blumberg Foundation funds
How this funder distributes its grants
Top Recipients
Top 10 recipients in 2025
The largest 2025 recipient was African Wildlife Foundation ($50K). Together the top 10 received $320K.
Grant Size Distribution
111 grants across all recorded years
The most common grant size was under $50K: 105 grants of 111 (95%).
Geographic Focus
Where this funder awards grants
In 2025, the largest shares of grant dollars went to recipients in the District of Columbia (41%), California (12%), Virginia (12%), Pennsylvania (8%), and New York (6%).
Grant Distribution by State
Share of 2025 grant dollars across all 27 itemized grants.
States
Cities
Is Aaron and Patricia Blumberg Foundation open to new grantees?
4%
first-time grantees, 2025
In 2025, 1 of 27 grantees (4%) were first-time recipients. First grants averaged $8K; repeat grants $16K. How we count
Medians: $8K first-time, $10K repeat.
- 96% of 2025 grantees were also funded in 2024. Method
- Giving grew 226% from 2022 to 2025. Method
- In 2025 it paid out 485% 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 $65K (2019) to $432K (2025). In 2025 it made 27 grants totaling $432K.
Grants by year
Grant recipients and amounts by year
| Recipient | Purpose | Amount |
|---|---|---|
| African Wildlife Foundation Washington, DC | General & Unrestricted | $50,000 |
| Greenpeace Fund Inc Washington, DC | General & Unrestricted | $50,000 |
| Sea Shepherd Conservation Society Alexandria, VA | General & Unrestricted | $50,000 |
| World Wildlife Fund Inc Washington, DC | General & Unrestricted | $30,000 |
| Amnesty International of the USA Inc New York, NY | General & Unrestricted | $25,000 |
| Medecins Sans Frontieres USA Inc Hagerstown, MD | General & Unrestricted | $25,000 |
| The David Sheldrick Wildlife Trust USA Laguna Hills, CA | General & Unrestricted | $25,000 |
| The Dian Fossey Gorilla Fund International Atlanta, GA | General & Unrestricted | $25,000 |
| World Central Kitchen Incorporated Washington, DC | General & Unrestricted | $25,000 |
| Big Life Foundation USA Ridgefield, WA | General & Unrestricted | $15,000 |
Ready to take the next step with Aaron and Patricia Blumberg Foundation?
Financial History
Multi-year comparison from IRS filings
The foundation reported 27 grants in 2025, 27 in 2024, and 20 in 2023.
| Filing year | Total Assets | Revenue | Expenses | Grants paid | Grants | Qualifying Distributions | Net Investment Income | Distributable Amount |
|---|---|---|---|---|---|---|---|---|
| 2025 | $1,245,193 | $155,380 | $461,207 | $431,500 | 27 | $438,271 | $146,210 | $90,382 |
| 2024 | $1,551,020 | $632,323 | $453,247 | $429,000 | 27 | $435,606 | $629,323 | $96,932 |
| 2023 | $1,371,944 | $281,521 | $285,500 | $266,000 | 20 | $271,775 | $274,963 | $103,372 |
| 2022 | $1,375,923 | $302,411 | $148,999 | $132,500 | 18 | $137,525 | $99,553 | $100,092 |
| 2021 | $1,222,511 | $331,445 | $106,127 | $91,500 | 19 | $96,525 | $22,219 | $94,967 |
| 2020 | $997,193 | $14,800 | $84,511 | $71,500 | 18 | — | $16,898 | $74,636 |
| 2019 | $1,066,904 | $237,517 | $77,823 | $65,000 | 16 | — | $33,081 | $61,125 |
Under IRS private-foundation payout rules, Aaron and Patricia Blumberg Foundation reported a distributable amount of $90K 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
No foundation mission statement is provided. Its 2025 grants included support for conservation and environmental organizations, as well as organizations focused on human rights and humanitarian relief.
The grantees describe their work in their own terms. African Wildlife Foundation says its mission is to help wildlife and wild lands thrive in modern Africa. Sea Shepherd Conservation Society focuses on marine wildlife conservation and protecting ocean ecosystems and species. Greenpeace Fund says its activities primarily aim to protect and preserve the environment. World Central Kitchen says it provides meals in response to humanitarian, climate, and community crises. Amnesty International of the USA says it campaigns to prevent and end grave human rights abuses.
Grantmaking
In 2025, the foundation reported 27 grants totaling $431,500. Grants ranged from $3,000 to $50,000, with a median of $10,000. The listed grants were designated for general and unrestricted purposes.
Among the largest reported grants were $50,000 each to African Wildlife Foundation, Greenpeace Fund, and Sea Shepherd Conservation Society; $30,000 to World Wildlife Fund; and $25,000 each to Amnesty International of the USA, Médecins Sans Frontières USA, The David Sheldrick Wildlife Trust USA, The Dian Fossey Gorilla Fund International, and World Central Kitchen.
Leadership & Key People
Leadership team and compensation from IRS filings
The 2025 filing lists Patricia Blumberg as director and president, and Amanda Marsted as secretary.
Aaron and Patricia Blumberg Foundation is led by Patricia Blumberg, Director & President on every filing since 2019; none of the 2 officers listed in 2025 report compensation.
Officers on the 2025 filing
Patricia Blumberg
Director & President
On filings since 2019
1 hr/week
No compensation reported
Amanda Marsted
Secretary
On filings since 2024
1 hr/week
No compensation reported
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 Aaron and Patricia Blumberg Foundation
How much does Aaron and Patricia Blumberg Foundation give each year?
Aaron and Patricia Blumberg Foundation gave $432K across 27 grants in 2025, according to its 2025 IRS Form 990-PF. In 2024 it gave $429K across 27 grants.
What is Aaron and Patricia Blumberg Foundation's typical grant size?
Aaron and Patricia Blumberg Foundation's median grant in 2025 was $10,000, and its average grant was $15,981, across 27 grants on its 2025 IRS Form 990-PF. Organizations receiving their first grant from Aaron and Patricia Blumberg Foundation that year got $8K on average.
Where does Aaron and Patricia Blumberg Foundation give grants?
Aaron and Patricia Blumberg Foundation's top state is District of Columbia, with 41% of the grant dollars itemized on its 2025 IRS Form 990-PF. The next largest states were California (12%) and Virginia (12%). The most frequent recipient cities were Washington, DC (6 grants), Philadelphia, PA (4 grants) and San Francisco, CA (3 grants).
Does Aaron and Patricia Blumberg Foundation give general operating support?
Yes: 100% of Aaron and Patricia Blumberg Foundation's 2025 grants with a stated purpose (27 of 27) were for general or operating support, per its 2025 IRS Form 990-PF.
Who are Aaron and Patricia Blumberg Foundation's largest grantees?
Aaron and Patricia Blumberg Foundation's largest 2025 grantees include African Wildlife Foundation ($50,000), Greenpeace Fund Inc ($50,000) and Sea Shepherd Conservation Society ($50,000), according to its 2025 IRS Form 990-PF. Together they received 35% of its itemized 2025 grant dollars.
How large is Aaron and Patricia Blumberg Foundation?
Aaron and Patricia Blumberg Foundation reported $1.2M in total assets on its 2025 IRS Form 990-PF. It paid out $438K in qualifying distributions that year, against a required minimum of $90K (roughly 5% of its investment assets).
What does Aaron and Patricia Blumberg Foundation fund?
No foundation mission statement is provided. Its 2025 grants included support for conservation and environmental organizations, as well as organizations focused on human rights and humanitarian relief. See mission & focus areas ↑
How do I apply for a grant from Aaron and Patricia Blumberg 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 Aaron and Patricia Blumberg Foundation's EIN?
Aaron and Patricia Blumberg Foundation's EIN (Employer Identification Number) is 26-1865519. IRS Form 990 filing data is available on this page for 2019–2025.
Does Aaron and Patricia Blumberg 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
(3)
When this profile's IRS filing data changed on Grantable
- Added Form 990-PF for fiscal year 2019 (received by the IRS March 5, 2020)
- Added Form 990-PF for fiscal year 2025 (received by the IRS April 24, 2026)
- IRS filings on file for fiscal years 2020–2024
Explore Open Grants
Browse active grant opportunities in Aaron and Patricia Blumberg Foundation's focus areas in our free grants database
Similar Funders
Funders with grantees in common, and similar funders in Delaware
Bristol-Myers Squibb Foundation Inc
Princeton, NJ
The Bristol-Myers Squibb Foundation supports health access and stronger health systems, with a focus on adult and pediatric cancers, blood disorders, brain health, and clinical-trial participation in the United States, Brazil, India, and ten Sub-Saharan African countries. In 2024, its median grant was about $134,000, though awards varied widely; it does not state whether it accepts unsolicited requests, and advises prospective applicants to contact the Foundation about its process.
Assets
$83.3M
Grants
144
Total Given
$67.7M
American Electric Power Foundation
Wilmington, DE
The American Electric Power Foundation funds education, especially STEM, basic human services, social justice, and environmental protection, primarily for organizations in AEP’s service territory or with broader beneficial impact. Its 2025 grants ranged from $500 to $1,428,570, with a median of $10,000. It does not accept unsolicited requests; eligible organizations need an invitation from their local AEP Operating Company.
Assets
$43.6M
Grants
753
Total Given
$23.0M
Puget Sound Energy Foundation
Wilmington, DE
The Puget Sound Energy Foundation funds nonprofits serving communities where PSE has a service or generation presence, primarily in Washington, across household needs, education and workforce pathways, climate resilience, and community safety. Grants vary widely; in 2024 they ranged from $13 to $100,000, with a $500 median, while its 2026 disaster-focused competitive program offers up to $15,000. It generally does not accept unsolicited requests, but eligible local nonprofits can apply through that competitive program.
Assets
$19.6M
Grants
451
Total Given
$1.2M
First Eagle Investments Foundation
Wilmington, DE
Assets
$747K
Grants
389
Total Given
$1.2M
Hagerty Drivers Foundation
Wilmington, DE
Assets
$193K
Grants
330
Total Given
$192K
McNabb Foundation
Wilmington, DE
The McNabb Foundation’s website describes support for behavioral health and social services in East Tennessee, while its 2024 grants went to organizations with varied missions, mostly in California. Grants ranged from $500 to $5,000, with a median of $1,000. It does not accept unsolicited requests and gives only to preselected charitable organizations.
Assets
$4.8M
Grants
328
Total Given
$358K
More similar funders
More Funders in Delaware
Cite this profile
Grantable. (2026). Aaron and Patricia Blumberg Foundation funder profile. GrantGraph. Retrieved October 10, 2026, from https://grantable.co/funders/aaron-and-patricia-blumberg-foundation-morg_15a09db91a2647ad9bb02c7b7c5d7306
BibTeX
@misc{grantable_261865519_2026,
author = {{Grantable}},
title = {{Aaron and Patricia Blumberg Foundation funder profile}},
howpublished = {GrantGraph},
year = {2026},
url = {https://grantable.co/funders/aaron-and-patricia-blumberg-foundation-morg_15a09db91a2647ad9bb02c7b7c5d7306},
note = {Accessed 2026-10-10. 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 Aaron and Patricia Blumberg 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.
Aaron and Patricia Blumberg Foundation down — hundreds of funders to go?