The Mosaic Foundation (also known as Mosaic Foundation of R and P Heydon) is a private foundation established in 1990 and based in Ann Arbor, Michigan. The foundation operates as a 501(c)(3) organization with no employees, functioning as a grantmaking entity that supports nonprofit organizations across multiple sectors.
Financial Overview
From 2024 IRS Form 990-PF · View filing
Total Assets
$3.1M
+1.7% YoY
Annual Giving
$393K
+13.2% YoY
Grant Count
103
+14.4% YoY
Avg Grant Size
$4K
-1.1% YoY
Mission & Focus Areas
The foundation's giving primarily supports the arts and education. Its funding priorities include:
- Social justice
- Cultural enrichment
- Museums
- Historic and land preservation
- Public broadcasting
- Health betterment
- Animal welfare
Grantmaking
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Geographic Focus
Where this funder awards grants
The foundation's grantmaking extends across multiple states, with documented giving in Michigan, New York, and Florida.
Grant Distribution by State
States
Cities
Financial History
Multi-year comparison from IRS filings
Assets & Revenue (as of fiscal year ending December 2023):
- Total assets: $3,026,691
- Total revenues: $563,838
- Total expenses: $437,871
- Total grants and contributions: $100,000
| Metric | 2024 | 2023 | 2022 |
|---|---|---|---|
| Total Assets | $3,078,634 | $3,026,691 | $2,898,310 |
| Revenue | $526,232 | $563,838 | $727,817 |
| Expenses | $475,915 | $437,871 | $407,556 |
| Qualifying Distributions | $433,647 | $386,010 | $361,224 |
| Net Investment Income | $421,974 | $456,098 | $618,701 |
| Distributable Amount | $151,300 | $142,665 | $136,895 |
Giving Over Time
Total grant dollars and number of grants per year
Grant Insights
How this funder distributes its grants
Top Recipients
Top 10 recipients in 2024
Grant Size Distribution
250 grants across all recorded years
Giving History
Grant recipients and amounts by year
No grants recorded for .
Leadership & Key People
Officers and directors from IRS filings
Compensation Overview
From 2024 IRS filing
From 2024 filing
| Name | Title | Hours | Compensation |
|---|---|---|---|
| PETER N HEYDON | DIRECTOR | — | — |
| Marie R Deveney | DIRECTOR | — | — |
| C Wendell Dunbar | DIRECTOR | — | — |
| Richard Handelman | DIRECTOR | — | — |
| C Allan Heydon | DIRECTOR | — | — |
| Scott N Heydon | DIRECTOR | — | — |
| Sarah Schriber | DIRECTOR | — | — |
Contact Information
Address: 324 E Washington St Ann Arbor, MI 48104-2010
Phone: 734-747-7070
EIN: 38-2910797
Subject Areas
Focus areas based on grantmaking activity
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Similar funders by location and focus area
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Data last updated April 2026. Sourced from IRS Form 990-PF filings. Research dossier generated April 2026.
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