Fondation Dune Inc
Fondation Dune Inc is a private foundation based in New York, New York. Its 2024 filing reports grants to charitable organizations including groups working on ocean life, clean energy, wildlife protection, policy, food insecurity, and humanitarian health interventions.
Fondation Dune Inc at a glance
In short: Fondation Dune Inc gave $1.1M across 13 grants in 2024 (avg $81K), top state New York. Source: 2024 IRS Form 990-PF.
- Annual giving (2024)
- $1,050,000
- +7.7% vs 2023
- Grants made (2024)
- 13
- +8.3% vs 2023
- Average grant
- $80,769
- -0.6% vs 2023
- Median grant
- $75,000
- Total assets
- $3,515,120
- +372.3% vs 2023
- Primary geography
- New York (40% of itemized 2024 grant dollars)
- Latest 990 filing
- Form 990-PF, 2024 View filing
Data from IRS Form 990-PF, 2024; updated October 2026.
How to apply to Fondation Dune Inc
- Accepts unsolicited proposals
- No
- How to Apply
-
The foundation states in its 2024 filing that it makes contributions only to preselected charitable organizations and does not accept unsolicited requests.
- Contact
Mailing address: 9 West 57Th Street 43Rd Fl, New York, NY 10019
Phone: (212) 303-5738
Application details from Grantable's research on the foundation's public materials; confirm on its website before applying.
Who Fondation Dune Inc funds
How this funder distributes its grants
Top Recipients
Top 10 recipients in 2024
The largest 2024 recipient was Only One ($200K). Together the top 10 received $900K.
Grant Size Distribution
38 grants across all recorded years
The most common grant size was in the $50–100K range: 22 grants of 38 (58%).
Geographic Focus
Where this funder awards grants
The 2024 grant dollars were distributed among recipient states as follows: New York, 40%; District of Columbia, 21%; California, 17%; Massachusetts, 10%; and Virginia, 7%. These reported shares do not account for all grant dollars.
Grant Distribution by State
Share of 2024 grant dollars across all 13 itemized grants.
Cities
How Fondation Dune Inc gives
- 77% of 2024 grantees were also funded in 2023. Method
- Giving grew 369% from 2021 to 2024. Method
- In 2024 it paid out well above its IRS minimum distribution (the 5% rule). Method
Estimate from itemized grant lists in IRS Form 990-PF filings (2024). 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 2024, annual grant giving ranged from $224K (2021) to $1.1M (2024). In 2024 it made 13 grants totaling $1.1M.
Grants by year
Grant recipients and amounts by year
| Recipient | Purpose | Amount |
|---|---|---|
| Only One New York, NY | General Operating Support | $200,000 |
| American Friends Muses Dorsay Et De Lorangerie New York, NY | General Operating Support | $100,000 |
| Clean Air Task Force Inc Boston, MA | General Operating Support | $100,000 |
| National Partnership for Women & Families Washington, DC | General Operating Support | $75,000 |
| Center for Reproductive Rights New York, NY | General Operating Support | $75,000 |
| Third Way Institute Washington, DC | General Operating Support | $75,000 |
| The National Wildlife Federation Reston, VA | General Operating Support | $75,000 |
| Defenders of Wildlife Washington, DC | General Operating Support | $75,000 |
| Digdeep Right to Water Project Los Angeles, CA | General Operating Support | $75,000 |
| International Medical Corps Los Angeles, CA | General Operating Support | $50,000 |
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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 |
|---|---|---|---|---|---|---|---|---|
| 2024 | $3,515,120 | $3,890,392 | $1,119,472 | $1,050,000 | 13 | $1,117,741 | $89,081 | $94,738 |
| 2023 | $744,200 | $1,231,344 | $1,041,810 | $975,000 | 12 | $1,040,506 | $30,040 | $31,956 |
| 2022 | $554,666 | $1,054,169 | $536,884 | $500,000 | 5 | $533,272 | $1,956 | $14,618 |
| 2021 | $37,381 | $16 | $240,205 | $224,000 | 3 | $232,102 | — | $7,473 |
| 2020 | $277,570 | $600,068 | $322,498 | $250,000 | 5 | — | — | $9,485 |
Under IRS private-foundation payout rules, Fondation Dune Inc reported a distributable amount of $95K for 2024 — 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 for the foundation is provided. Its 2024 grants included support for organizations whose own missions span several areas. ONLY ONE says it works to rebuild ocean life through collective action; Clean Air Task Force says it advances technology and policy changes for a zero-emissions, high-energy planet; and Defenders of Wildlife says it is dedicated to protecting native animals and plants in their natural communities. Third Way Institute describes its work as advancing centrist solutions to policy issues. Other grantees describe missions involving grassroots action against industrial pollution, rescuing surplus produce to address hunger and food waste, and health interventions for communities affected by conflict, disasters, and disease outbreaks.
Grantmaking
In filing year 2024, the foundation gave $1,050,000 through 13 grants. Grant amounts ranged from $50,000 to $200,000, with a median of $75,000. The filing identifies general operating support as the purpose for the grants listed below, except where noted.
Notable 2024 grantees included ONLY ONE ($200,000); American Friends Muses Dorsay et de Lorangerie ($100,000); Clean Air Task Force ($100,000); National Partnership for Women & Families ($75,000); Center for Reproductive Rights ($75,000); Third Way Institute ($75,000); The National Wildlife Federation ($75,000); Defenders of Wildlife ($75,000); DigDeep Right to Water Project ($75,000); International Medical Corps ($50,000); Food Forward ($50,000); and American Friends of Latet Humanitarian Aid ($50,000). Louisiana Bucket Brigade also received $50,000 in 2024; no grant purpose is provided for that grant.
Leadership & Key People
Leadership team and compensation from IRS filings
The 2024 filing lists Charles Heilbronn as director, president, and secretary; Arthur Heilbronn as director and treasurer; and Louis Heilbronn, Charlotte Hurst, and Laurence Heilbronn as directors.
Fondation Dune Inc is led by Charles Heilbronn, Director, President & Secretary on every filing since 2020; none of the 5 officers listed in 2024 report compensation.
Officers on the 2024 filing
Charles Heilbronn
Director, President & Secretary
On filings since 2020
1 hr/week
No compensation reported
Arthur Heilbronn
Director & Treasurer
On filings since 2020
1 hr/week
No compensation reported
Laurence Heilbronn
Director
On filings since 2020
1 hr/week
No compensation reported
Louis Heilbronn
Director
On filings since 2020
1 hr/week
No compensation reported
Charlotte Hurst
Director
New on the 2024 filing
1 hr/week
No compensation reported
Former officers (1)
- Former: Charlotte Heilbronn (2020–2023) — Director
Data from IRS Form 990 filings, 2020–2024. "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 Fondation Dune Inc
How much does Fondation Dune Inc give each year?
Fondation Dune Inc gave $1.1M across 13 grants in 2024, according to its 2024 IRS Form 990-PF. In 2023 it gave $975K across 12 grants.
What is Fondation Dune Inc's typical grant size?
Fondation Dune Inc's median grant in 2024 was $75,000, and its average grant was $80,769, across 13 grants on its 2024 IRS Form 990-PF.
Where does Fondation Dune Inc give grants?
Fondation Dune Inc's top state is New York, with 40% of the grant dollars itemized on its 2024 IRS Form 990-PF. The next largest states were District of Columbia (21%) and California (17%). The most frequent recipient cities were New York, NY (3 grants), Washington, DC (3 grants) and Los Angeles, CA (2 grants).
Does Fondation Dune Inc give general operating support?
Yes: 100% of Fondation Dune Inc's 2024 grants with a stated purpose (13 of 13) were for general or operating support, per its 2024 IRS Form 990-PF.
Who are Fondation Dune Inc's largest grantees?
Fondation Dune Inc's largest 2024 grantees include Only One ($200,000), American Friends Muses Dorsay Et De Lorangerie ($100,000) and Clean Air Task Force Inc ($100,000), according to its 2024 IRS Form 990-PF. Together they received 38% of its itemized 2024 grant dollars.
How large is Fondation Dune Inc?
Fondation Dune Inc reported $3.5M in total assets on its 2024 IRS Form 990-PF. It paid out $1.1M in qualifying distributions that year, against a required minimum of $95K (roughly 5% of its investment assets).
What does Fondation Dune Inc fund?
No mission statement for the foundation is provided. Its 2024 grants included support for organizations whose own missions span several areas. See mission & focus areas ↑
How do I apply for a grant from Fondation Dune Inc?
The foundation states in its 2024 filing that it makes contributions only to preselected charitable organizations and does not accept unsolicited requests. Eligibility and process details are in the grantmaking section of this profile. See how to apply ↑
What is Fondation Dune Inc's EIN?
Fondation Dune Inc's EIN (Employer Identification Number) is 84-3840295. IRS Form 990 filing data is available on this page for 2020–2024.
Does Fondation Dune Inc 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
(1)
When this profile's IRS filing data changed on Grantable
- IRS filings on file for fiscal years 2020–2024
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Cite this profile
Grantable. (2026). Fondation Dune Inc funder profile. GrantGraph. Retrieved October 12, 2026, from https://grantable.co/funders/fondation-dune-inc-morg_5a5bd7fc5a1249ceaefa1f2b7c1ccf1f
BibTeX
@misc{grantable_843840295_2026,
author = {{Grantable}},
title = {{Fondation Dune Inc funder profile}},
howpublished = {GrantGraph},
year = {2026},
url = {https://grantable.co/funders/fondation-dune-inc-morg_5a5bd7fc5a1249ceaefa1f2b7c1ccf1f},
note = {Accessed 2026-10-12. 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 Fondation Dune Inc'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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