Mammen Family Foundation
Mammen Family Foundation is a private foundation, based in Bulverde, TX. IRS filing data is available from 2020 through 2024. As of 2024, the organization holds $245K in total assets. Net investment income was $5K.
Mammen Family Foundation at a glance
- Total assets
- $245,309
- +2.4% vs 2023
- Revenue (2024)
- $6,665
- +55.0% vs 2023
- Net investment income (2024)
- $4,965
- +83.8% vs 2023
- Expenses (2024)
- $850
- +6.3% vs 2023
- Latest 990 filing
- Form 990-PF, 2024 View filing
Data from IRS Form 990-PF, 2024; updated September 2026.
Who Mammen Family Foundation funds
How this funder distributes its grants
Grant Size Distribution
3 grants across all recorded years
The most common grant size was in the $250–500K range: 3 grants of 3 (100%).
Geographic Focus
Where this funder awards grants
Grant Distribution by State
States
Cities
How Mammen Family Foundation gives
- In 2022 it paid out well above its IRS minimum distribution (the 5% rule). Method
From the foundation's IRS Form 990-PF filings. Methodology.
Giving History
Giving Over Time
Total grant dollars and number of grants per year
From 2020 to 2022, annual grant giving ranged from $400K (2020) to $400K (2022). In 2022 it made 1 grant totaling $400K.
Grants by year
Grant recipients and amounts by year
| Recipient | Purpose | Amount |
|---|---|---|
| Bulverde Area Rural Library Distric Bulverde, TX | Capital Expansion | $400,000 |
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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 |
|---|---|---|---|---|---|---|---|---|
| 2024 | $245,309 | $6,665 | $850 | — | — | — | $4,965 | $12,309 |
| 2023 | $239,494 | $4,301 | $800 | — | — | — | $2,701 | $11,659 |
| 2022 | $235,993 | $1,477 | $400,775 | $400,000 | 1 | $400,000 | — | $22,270 |
| 2021 | $635,291 | $401,093 | $400,819 | $400,000 | 1 | $400,000 | — | $23,072 |
| 2020 | $635,017 | $154,263 | $401,079 | $400,000 | 1 | — | $3,184 | $33,192 |
Under IRS private-foundation payout rules, Mammen Family Foundation reported a distributable amount of $12K for 2024 — the minimum it must pay out in qualifying distributions.
Leadership & Key People
Officers and directors from IRS filings
Mammen Family Foundation is led by Sam Mammen, President on every filing since 2020; none of the 3 officers listed in 2024 report compensation.
Officers on the 2024 filing
Sam Mammen
President
On filings since 2020
No compensation reported
Loretta J. Mammen
Secretary
On filings since 2020
No compensation reported
Christopher Mammen
Board Member
New on the 2024 filing
No compensation reported
Former officers (1)
- Former: Chrsitopher Mammen (2020–2023) — Board Member
Data from IRS Form 990 filings, 2020–2024. "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 Mammen Family Foundation
How large is Mammen Family Foundation?
Mammen Family Foundation reported $245K in total assets on its 2024 IRS Form 990-PF. Its revenue that year was $7K.
Where does Mammen Family Foundation operate?
Mammen Family Foundation has awarded grants in Texas.
How much is Mammen Family Foundation required to give away each year?
Private foundations must generally distribute about 5% of their assets annually. For 2024, Mammen Family Foundation reported a distributable amount of $12K on its IRS Form 990-PF — the minimum it must pay out in qualifying distributions.
What is Mammen Family Foundation's EIN?
Mammen Family Foundation's EIN (Employer Identification Number) is 82-3948369. IRS Form 990 filing data is available on this page for 2020–2024.
Data last updated September 2026. Sourced from IRS Form 990-PF filings.
Data update history
(1)
When this profile's IRS filing data changed on Grantable
- IRS filings on file for fiscal years 2020–2024
Explore Open Grants
Browse active grant opportunities in Mammen Family Foundation's focus areas in our free grants database
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Mammen Family Foundation down — hundreds of funders to go?