William & Claire Dart Foundation is a private foundation focused on Philanthropy, based in MASON, MI. IRS filing data is available from 2020 through 2024. As of 2024, the organization holds $51.7M in total assets. In 2024, it awarded 5 grants totaling $3.9M. Net investment income was $1.4M.
Financial Overview
From 2024 IRS Form 990-PF · View filing
Total Assets
$51.7M
+19.5% YoY
Annual Giving
$3.9M
+16.4% YoY
Grant Count
5
-16.7% YoY
Avg Grant Size
$780K
+39.7% YoY
Under IRS private-foundation payout rules, William & Claire Dart Foundation reported a distributable amount of $2.8M for 2024 — the minimum it must pay out in qualifying distributions.
About William & Claire Dart Foundation
Based on IRS filings
William & Claire Dart Foundation is a private foundation focused on Philanthropy, based in MASON, MI. IRS filing data is available from 2020 through 2024. As of 2024, the organization holds $51.7M in total assets. In 2024, it awarded 5 grants totaling $3.9M. Net investment income was $1.4M.
Focus Areas
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Geographic Focus
Where this funder awards grants
Grant Distribution by State
Cities
Financial History
Multi-year comparison from IRS filings
| Metric | 2024 | 2023 | 2022 |
|---|---|---|---|
| Total Assets | $51,714,858 | $43,258,527 | $21,237,055 |
| Revenue | $12,404,368 | $5,568,572 | $167,007 |
| Expenses | $3,948,037 | $3,358,195 | $2,800,391 |
| Qualifying Distributions | $3,903,037 | $3,358,195 | $2,800,391 |
| Net Investment Income | $1,374,368 | $568,572 | $456,931 |
| Distributable Amount | $2,821,803 | $1,219,473 | $1,036,861 |
Giving Over Time
Total grant dollars and number of grants per year
Grant Insights
How this funder distributes its grants
Top Recipients
Top 5 recipients in 2024
Grant Size Distribution
18 grants across all recorded years
Giving History
Grant recipients and amounts by year
Among its reported 2024 grants, the largest include Dart Foundation ($1,500,000), Dart Foundation ($900,000), Dart Foundation ($700,000).
| Recipient | Purpose | Amount |
|---|---|---|
| Dart Foundation Mason, MI | General Support | $400,000 |
| Dart Foundation Mason, MI | General Support | $400,000 |
| Dart Foundation Mason, MI | General Support | $1,500,000 |
| Dart Foundation Mason, MI | General Support | $700,000 |
| Dart Foundation Mason, MI | General Support | $900,000 |
Leadership & Key People
Officers and directors from IRS filings
Compensation Overview
From 2024 IRS filing
From 2024 filing
| Name | Title | Hours | Compensation |
|---|---|---|---|
| Kenneth B Dart | President | — | — |
| James D Lammers | Vie President, Secretary, Treasurer | — | — |
Subject Areas
Focus areas based on grantmaking activity
Frequently Asked Questions
What is William & Claire Dart Foundation?
William & Claire Dart Foundation is a private foundation focused on Philanthropy, based in MASON, MI. It holds $51.7M in total assets as of 2024.
How large is William & Claire Dart Foundation?
As of 2024, William & Claire Dart Foundation holds $51.7M in total assets with $12.4M in annual revenue. It awarded 5 grants totaling $3.9M in 2024.
Where does William & Claire Dart Foundation operate?
William & Claire Dart Foundation has awarded grants in Florida, Michigan.
What size grants does William & Claire Dart Foundation award?
In 2024, William & Claire Dart Foundation awarded 5 grants totaling $3.9M — an average of about $780K per grant, based on its IRS Form 990 filings.
How much is William & Claire Dart Foundation required to give away each year?
Private foundations must generally distribute about 5% of their assets annually. For 2024, William & Claire Dart Foundation reported a distributable amount of $2.8M on its IRS Form 990-PF — the minimum it must pay out in qualifying distributions.
What is William & Claire Dart Foundation's EIN?
William & Claire Dart Foundation's EIN (Employer Identification Number) is 38-2562664. IRS Form 990 filing data is available on this page for 2020–2024.
Explore Open Grants
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Data last updated April 2026. Sourced from IRS Form 990-PF filings.
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