The Trillium Foundation
The Trillium Foundation is a private foundation based in Ada, Michigan. Its 2025 filing reports 17 grants totaling $27,250 to charitable organizations in Michigan and four other states.
The Trillium Foundation at a glance
In short: The Trillium Foundation gave $27K across 17 grants in 2025 (avg $2K), top state Michigan. 12% of 2025 grantees were new. Source: 2025 IRS Form 990-PF.
- Annual giving (2025)
- $27,250
- -17.4% vs 2024
- Grants made (2025)
- 17
- -10.5% vs 2024
- Average grant
- $1,603
- -7.7% vs 2024
- Median grant
- $1,000
- Total assets
- $212,804
- +11.7% vs 2024
- New grantees (estimate)
- 12% first-time grantees (2 of 17, 2025; small sample)
- Primary geography
- Michigan (49% 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 The Trillium Foundation
- Accepts unsolicited proposals
- No
- How to Apply
-
The foundation does not accept unsolicited requests; it states that it makes contributions only to preselected charitable organizations.
- Contact
Mailing address: 7587 Conservation Rd Ne, Ada, MI 49301
Phone: (616) 334-8427
Application details from Grantable's research on the foundation's public materials; confirm on its website before applying.
Who The Trillium Foundation funds
How this funder distributes its grants
Top Recipients
Top 10 recipients in 2025
The largest 2025 recipient was The Middle Way ($6K). Together the top 10 received $22K.
Grant Size Distribution
101 grants across all recorded years
The most common grant size was under $50K: 101 grants of 101 (100%).
Geographic Focus
Where this funder awards grants
The foundation’s 2025 grant dollars went to recipients in Michigan (49%), Colorado (20%), New Hampshire (15%), Massachusetts (9%), and New York (7%).
Grant Distribution by State
Share of 2025 grant dollars across all 17 itemized grants.
States
Cities
Is The Trillium Foundation open to new grantees?
12%
first-time grantees, 2025
In 2025, 2 of 17 grantees (12%) were first-time recipients. With only 17 grantees, that is a small sample: one grantee more or less moves the share by about 6 points. First grants averaged $750; repeat grants $2K. How we count
Medians: $750 first-time, $1K repeat.
- 65% of 2025 grantees were also funded in 2024. Method
- Giving held roughly steady from 2022 to 2025 (−20%). Method
- In 2025 it paid out 103% 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 $25K (2023) to $34K (2022). In 2025 it made 17 grants totaling $27K.
Grants by year
Grant recipients and amounts by year
| Recipient | Purpose | Amount |
|---|---|---|
| The Middle Way Fairplay, CO | Donation | $5,500 |
| Corewell Health Foundation West MI Grand Rapids, MI | Donation | $5,000 |
| Bridges to Malawi Hudson, MA | Donation | $2,500 |
| Aquinas College Grand Rapids, MI | Donation | $2,250 |
| St Cecelia Music Center Grand Rapids, MI | Donation | $2,000 |
| Devos Children's Hospital Grand Rapids, MI | Donation | $1,000 |
| Doctors Without Borders New York, NY | Donation | $1,000 |
| Franciscan Life Process Center Lowell, MI | Donation | $1,000 |
| International Rescue Committee New York, NY | Donation | $1,000 |
| NAMI New Hampshire Concord, NH | Donation | $1,000 |
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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 |
|---|---|---|---|---|---|---|---|---|
| 2025 | $212,804 | $53,132 | $29,081 | $27,250 | 17 | $27,270 | $13,651 | $26,398 |
| 2024 | $190,448 | $24,006 | $36,631 | $33,000 | 19 | $33,020 | $13,845 | $25,607 |
| 2023 | $203,011 | $15,048 | $25,437 | $25,000 | 19 | $25,020 | $14,344 | $24,789 |
| 2022 | $213,400 | $17,841 | $35,729 | $34,000 | 22 | $35,320 | $17,610 | $25,656 |
| 2021 | $231,288 | $50,188 | $31,893 | $30,000 | 24 | $31,720 | $13,509 | $30,463 |
| 2020 | $212,993 | $33,510 | $33,140 | $31,000 | 19 | — | $12,451 | $24,511 |
Under IRS private-foundation payout rules, The Trillium Foundation reported a distributable amount of $26K for 2025 — the minimum it must pay out in qualifying distributions.
Research compiled by Grantable AI from public sources. Last updated September 2026.
Grantmaking
In filing year 2025, the foundation gave $27,250 through 17 grants. Grants ranged from $500 to $5,500, with a median grant of $1,000. Among the largest were $5,500 to The Middle Way, $5,000 to Corewell Health Foundation West MI, $2,500 to Bridges to Malawi, $2,250 to Aquinas College, and $2,000 to St Cecelia Music Center.
Other reported 2025 grants included $1,000 each to DeVos Children’s Hospital, Doctors Without Borders, Franciscan Life Process Center, International Rescue Committee, NAMI New Hampshire, New Hampshire Food Bank, and Southeast Land Trust of New.
Leadership & Key People
Leadership team and compensation from IRS filings
The 2025 filing lists G Mark McAleenan as president; Gary F McAleenan and Gregory W McAleenan as directors; and Karin M Turmelle as secretary/treasurer.
The Trillium Foundation is led by G. Mark McAleenan, President since 2022 (on filings since 2020); none of the 4 officers listed in 2025 report compensation.
Officers on the 2025 filing
G. Mark McAleenan
President
President & Secretary → President, 2022
On filings since 2020
0.1 hrs/week
No compensation reported
Gary F. McAleenan
Director
On filings since 2020
0.1 hrs/week
No compensation reported
Gregory W. McAleenan
Director
On filings since 2020
0.1 hrs/week
No compensation reported
Karin M. Turmelle
Secretary
Treasurer → Secretary, 2022
On filings since 2020
0.6 hrs/week
No compensation reported
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.
Frequently asked questions about The Trillium Foundation
How much does The Trillium Foundation give each year?
The Trillium Foundation gave $27K across 17 grants in 2025, according to its 2025 IRS Form 990-PF. In 2024 it gave $33K across 19 grants.
What is The Trillium Foundation's typical grant size?
The Trillium Foundation's median grant in 2025 was $1,000, and its average grant was $1,603, across 17 grants on its 2025 IRS Form 990-PF. Organizations receiving their first grant from The Trillium Foundation that year got $750 on average.
Where does The Trillium Foundation give grants?
The Trillium Foundation's top state is Michigan, with 49% of the grant dollars itemized on its 2025 IRS Form 990-PF. The next largest states were Colorado (20%) and New Hampshire (15%). The most frequent recipient cities were Grand Rapids, MI (6 grants), New York, NY (2 grants) and Exeter, NH (2 grants).
Does The Trillium Foundation give general operating support?
Not in 2025: none of the 17 grants with a stated purpose on The Trillium Foundation's 2025 IRS Form 990-PF were described as general or operating support. Recurring purposes include "Donation" (17 grants).
Who are The Trillium Foundation's largest grantees?
The Trillium Foundation's largest 2025 grantees include The Middle Way ($5,500), Corewell Health Foundation West MI ($5,000) and Bridges to Malawi ($2,500), according to its 2025 IRS Form 990-PF. Together they received 48% of its itemized 2025 grant dollars.
How large is The Trillium Foundation?
The Trillium Foundation reported $213K in total assets on its 2025 IRS Form 990-PF. It paid out $27K in qualifying distributions that year, against a required minimum of $26K (roughly 5% of its investment assets).
How do I apply for a grant from The Trillium Foundation?
The foundation does not accept unsolicited requests; it states that it makes contributions only to preselected charitable organizations. Eligibility and process details are in the grantmaking section of this profile. See how to apply ↑
What is The Trillium Foundation's EIN?
The Trillium Foundation's EIN (Employer Identification Number) is 38-2403460. IRS Form 990 filing data is available on this page for 2020–2025.
Does The Trillium 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 May 7, 2021)
- Updated Form 990-PF for fiscal year 2021 (received by the IRS August 10, 2022)
- Updated Form 990-PF for fiscal year 2022 (received by the IRS October 25, 2023)
- Updated Form 990-PF for fiscal year 2023 (received by the IRS July 17, 2024)
- Updated Form 990-PF for fiscal year 2024 (received by the IRS June 2, 2025)
- Added Form 990-PF for fiscal year 2025 (received by the IRS May 14, 2026)
Explore Open Grants
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Figures come from The Trillium 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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