The Mattis Family Foundation is a private foundation focused on Philanthropy, Voluntarism & Grantmaking, based in GREENWICH, CT. IRS filing data is available from 2022 through 2024. As of 2024, the organization holds $344K in total assets. In 2024, it awarded 1 grants totaling $10K. Net investment income was $7K.
Financial Overview
From 2024 IRS Form 990-PF · View filing
Total Assets
$344K
-2.3% YoY
Annual Giving
$10K
+100.0% YoY
Grant Count
1
+0.0% YoY
Avg Grant Size
$10K
+100.0% YoY
Under IRS private-foundation payout rules, The Mattis Family Foundation reported a distributable amount of $20K for 2024 — the minimum it must pay out in qualifying distributions.
About The Mattis Family Foundation
Based on IRS filings
The Mattis Family Foundation is a private foundation focused on Philanthropy, Voluntarism & Grantmaking, based in GREENWICH, CT. IRS filing data is available from 2022 through 2024. As of 2024, the organization holds $344K in total assets. In 2024, it awarded 1 grants totaling $10K. Net investment income was $7K.
Focus Areas
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Geographic Focus
Where this funder awards grants
Grant Distribution by State
States
Cities
Financial History
Multi-year comparison from IRS filings
| Metric | 2024 | 2023 | 2022 |
|---|---|---|---|
| Total Assets | $343,733 | $351,734 | $334,578 |
| Revenue | $24,193 | $27,125 | $341,868 |
| Expenses | $32,206 | $16,797 | — |
| Qualifying Distributions | $15,997 | $8,365 | — |
| Net Investment Income | $6,547 | $154,555 | $20,725 |
| Distributable Amount | $20,168 | $15,520 | $2,032 |
Giving Over Time
Total grant dollars and number of grants per year
Grant Insights
How this funder distributes its grants
Top Recipients
Top 1 recipients in 2024
Grant Size Distribution
2 grants across all recorded years
Giving History
Grant recipients and amounts by year
Among its reported 2024 grants, the largest include The National Audubon Society ($10,000).
| Recipient | Purpose | Amount |
|---|---|---|
| THE NATIONAL AUDUBON SOCIETY GREENWICH, CT | PROVIDING RESOURCES AND INFORMATION TO FAMILIES IN NEED WITH CHILDREN IN SPECIAL EDUCATION | $10,000 |
Leadership & Key People
Officers and directors from IRS filings
Compensation Overview
From 2024 IRS filing
From 2024 filing
| Name | Title | Hours | Compensation |
|---|---|---|---|
| KATHRYN MATTIS | CHAIRMAN & SECRETARTY | 0.25 | — |
| PETER MATTIS | TREASURER | 0.25 | — |
Subject Areas
Focus areas based on grantmaking activity
Frequently Asked Questions
What is The Mattis Family Foundation?
The Mattis Family Foundation is a private foundation focused on Philanthropy, Voluntarism & Grantmaking, based in GREENWICH, CT. It holds $344K in total assets as of 2024.
How large is The Mattis Family Foundation?
As of 2024, The Mattis Family Foundation holds $344K in total assets with $24K in annual revenue. It awarded 1 grants totaling $10K in 2024.
Where does The Mattis Family Foundation operate?
The Mattis Family Foundation has awarded grants in Connecticut.
What size grants does The Mattis Family Foundation award?
In 2024, The Mattis Family Foundation awarded 1 grants totaling $10K — an average of about $10K per grant, based on its IRS Form 990 filings.
How much is The Mattis Family Foundation required to give away each year?
Private foundations must generally distribute about 5% of their assets annually. For 2024, The Mattis Family Foundation reported a distributable amount of $20K on its IRS Form 990-PF — the minimum it must pay out in qualifying distributions.
What is The Mattis Family Foundation's EIN?
The Mattis Family Foundation's EIN (Employer Identification Number) is 35-2765948. IRS Form 990 filing data is available on this page for 2022–2024.
Explore Open Grants
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Data last updated April 2026. Sourced from IRS Form 990-PF filings.
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