Mariel Foundation
Mariel Foundation is a private foundation located in Traverse City, Michigan. Its 2025 grants went to organizations working in areas including conservation, arts and education, health, and community development.
Mariel Foundation at a glance
In short: Mariel Foundation gave $701K across 27 grants in 2025 (avg $26K), top state Michigan. 26% of 2025 grantees were new. Source: 2025 IRS Form 990-PF.
- Annual giving (2025)
- $701,020
- +6.1% vs 2024
- Grants made (2025)
- 27
- +0.0% vs 2024
- Average grant
- $25,964
- +6.1% vs 2024
- Median grant
- $10,000
- Total assets
- $10,770,523
- +9.8% vs 2024
- New grantees (estimate)
- 26% first-time grantees (7 of 27, 2025)
- Primary geography
- Michigan (42% of itemized 2025 grant dollars)
- Latest 990 filing
- Form 990-PF, 2025 View filing
Data from IRS Form 990-PF, 2025; updated September 2026. New grantees are estimated by matching recipient names across years (methodology).
How to apply to Mariel 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: PO Box 6461, Traverse City, MI 49696
Phone: (231) 632-6233
Application details from Grantable's research on the foundation's public materials; confirm on its website before applying.
Who Mariel Foundation funds
How this funder distributes its grants
Top Recipients
Top 10 recipients in 2025
The largest 2025 recipient was Water 1st ($135K). Together the top 10 received $585K.
Grant Size Distribution
140 grants across all recorded years
The most common grant size was under $50K: 114 grants of 140 (81%).
Geographic Focus
Where this funder awards grants
In 2025, Michigan recipients received 42% of grant dollars, followed by recipients in Washington (19%), Virginia (14%), Florida (10%), and New York (5%).
Grant Distribution by State
Share of 2025 grant dollars across all 27 itemized grants.
States
Cities
Is Mariel Foundation open to new grantees?
26%
first-time grantees, 2025
In 2025, 7 of 27 grantees (26%) were first-time recipients. First grants averaged $12K; repeat grants $31K. How we count
Medians: $13K first-time, $8K repeat.
- 70% of 2025 grantees were also funded in 2024. Method
- Giving held roughly steady from 2022 to 2025 (+17%). Method
- In 2025 it paid out 82% 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 $600K (2022) to $701K (2025). In 2025 it made 27 grants totaling $701K.
Grants by year
Grant recipients and amounts by year
| Recipient | Purpose | Amount |
|---|---|---|
| Water 1st Seattle, WA | Charitable | $135,000 |
| Trout Unlimited Arlington, VA | Charitable | $100,000 |
| Leelanau Conservancy Leland, MI | Charitable | $73,550 |
| Mote Marine Laboratory Aquar Sarasota, FL | Charitable | $66,000 |
| Inland Seas Education Assoc Suttons Bay, MI | Charitable | $53,500 |
| Interlochen Center for the Arts Interlochen, MI | Charitable | $50,000 |
| Afraid of Bear-American Horse Tiosp Akwesasne, NY | Charitable | $35,000 |
| Groundwork Ctr for Resilient Comm Traverse City, MI | Charitable | $30,750 |
| 20Fathoms Traverse City, MI | Charitable | $22,500 |
| National Writers Series Traverse City, MI | Charitable | $19,000 |
Ready to take the next step with Mariel 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 | $10,770,523 | $1,782,812 | $824,574 | $701,020 | 27 | $787,870 | $1,777,808 | $964,824 |
| 2024 | $9,812,285 | $673,327 | $768,039 | $660,847 | 27 | $741,072 | $672,944 | $875,213 |
| 2023 | $9,907,017 | $1,251,027 | $699,053 | $600,000 | 27 | $675,186 | $1,243,912 | $723,794 |
| 2022 | $9,355,023 | $210,682 | $742,150 | $600,000 | 28 | $675,346 | $210,682 | $725,806 |
| 2021 | $9,886,491 | $1,946,539 | $717,419 | $600,692 | 31 | — | $1,946,543 | $739,224 |
Under IRS private-foundation payout rules, Mariel Foundation reported a distributable amount of $965K 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 mission statement for the foundation is provided. Its grants include support for organizations with varied missions. For example, Leelanau Conservancy says it works to conserve Leelanau County’s land, water, and scenic character and provide educational programs about the county’s natural heritage. Interlochen Center for the Arts says it engages and inspires people through educational, artistic, and cultural programs. Partners for World Health says it redistributes unused medical supplies, organizes medical missions, and educates people about global health issues.
Grantmaking
In 2025, the foundation made 27 grants totaling $701,020. Grants ranged from $1,000 to $135,000, with a median of $10,000. Larger grants included $135,000 to Water 1st, $100,000 to Trout Unlimited, $73,550 to Leelanau Conservancy, $66,000 to Mote Marine Laboratory Aquar, and $53,500 to Inland Seas Education Association.
Leadership & Key People
Leadership team and compensation from IRS filings
The 2025 filing lists Nancy L Hoagland as President; James H Hoagland and Chelsea C Hoagland as Vice Presidents; Anne H Magoun as Secretary; and John T Hoagland, Andrew H Magoun, and Whitney Edwards as Directors.
Mariel Foundation is led by Nancy L Hoagland, President on every filing since 2021; none of the 7 officers listed in 2025 report compensation.
Officers on the 2025 filing
Nancy L Hoagland
President
On filings since 2021
1 hr/week
No compensation reported
Andrew H Magoun
Director
On filings since 2021
1 hr/week
No compensation reported
John T Hoagland
Director
On filings since 2021
1 hr/week
No compensation reported
Whitney Edwards
Director
On filings since 2024
1 hr/week
No compensation reported
Anne H Magoun
Secretary
On filings since 2021
4 hrs/week
No compensation reported
Chelsea C Hoagland
Vice President
Director → Vice President, 2025
On filings since 2021
1 hr/week
No compensation reported
James H Hoagland
Vice President
On filings since 2021
1 hr/week
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 Mariel Foundation
How much does Mariel Foundation give each year?
Mariel Foundation gave $701K across 27 grants in 2025, according to its 2025 IRS Form 990-PF. In 2024 it gave $661K across 27 grants.
What is Mariel Foundation's typical grant size?
Mariel Foundation's median grant in 2025 was $10,000, and its average grant was $25,964, across 27 grants on its 2025 IRS Form 990-PF. Organizations receiving their first grant from Mariel Foundation that year got $12K on average.
Where does Mariel Foundation give grants?
Mariel Foundation's top state is Michigan, with 42% of the grant dollars itemized on its 2025 IRS Form 990-PF. The next largest states were Washington (19%) and Virginia (14%). The most frequent recipient cities were Traverse City, MI (7 grants) and Washington, DC (2 grants).
Does Mariel Foundation give general operating support?
Not in 2025: none of the 27 grants with a stated purpose on Mariel Foundation's 2025 IRS Form 990-PF were described as general or operating support. Recurring purposes include "Charitable" (27 grants).
Who are Mariel Foundation's largest grantees?
Mariel Foundation's largest 2025 grantees include Water 1st ($135,000), Trout Unlimited ($100,000) and Leelanau Conservancy ($73,550), according to its 2025 IRS Form 990-PF. Together they received 44% of its itemized 2025 grant dollars.
How large is Mariel Foundation?
Mariel Foundation reported $10.8M in total assets on its 2025 IRS Form 990-PF. It paid out $788K in qualifying distributions that year, against a required minimum of $965K (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 Mariel Foundation fund?
No mission statement for the foundation is provided. Its grants include support for organizations with varied missions. See mission & focus areas ↑
How do I apply for a grant from Mariel 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 Mariel Foundation's EIN?
Mariel Foundation's EIN (Employer Identification Number) is 38-3334050. IRS Form 990 filing data is available on this page for 2021–2025.
Does Mariel Foundation accept unsolicited proposals?
No, according to Grantable's research on the foundation's published guidelines. See how to apply ↑
Data last updated September 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 2021 (received by the IRS February 4, 2022)
- Updated Form 990-PF for fiscal year 2022 (received by the IRS January 24, 2023)
- Updated Form 990-PF for fiscal year 2023 (received by the IRS January 22, 2024)
- Updated Form 990-PF for fiscal year 2024 (received by the IRS December 17, 2024)
- Updated Form 990-PF for fiscal year 2025 (received by the IRS January 31, 2026)
- IRS filings on file for fiscal years 2021–2025
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Cite this profile
Grantable. (2026). Mariel Foundation funder profile. GrantGraph. Retrieved October 15, 2026, from https://grantable.co/funders/mariel-foundation-morg_9246ed2da2304dbc9810e3722451deb5
BibTeX
@misc{grantable_383334050_2026,
author = {{Grantable}},
title = {{Mariel Foundation funder profile}},
howpublished = {GrantGraph},
year = {2026},
url = {https://grantable.co/funders/mariel-foundation-morg_9246ed2da2304dbc9810e3722451deb5},
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 Mariel 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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