Theodore and Karin Mayer Family Foundation Inc
Theodore and Karin Mayer Family Foundation Inc is a private foundation, based in Pelham, NY. IRS filing data is available from 2020 through 2024. As of 2024, the organization holds $5.2M in total assets. In 2024, it awarded 5 grants totaling $246K. Net investment income was $233K.
Theodore and Karin Mayer Family Foundation Inc at a glance
In short: Theodore and Karin Mayer Family Foundation Inc gave $246K across 5 grants in 2024 (avg $49K), mostly in New York. Source: 2024 IRS Form 990-PF.
- Annual giving (2024)
- $246,224
- +8.8% vs 2023
- Grants made (2024)
- 5
- +0.0% vs 2023
- Average grant
- $49,245
- +8.8% vs 2023
- Median grant
- $20,000
- Total assets
- $5,205,080
- +11.6% vs 2023
- Primary geography
- New York (97% of itemized 2024 grant dollars)
- Latest 990 filing
- Form 990-PF, 2024 View filing
Data from IRS Form 990-PF, 2024; updated September 2026.
Who Theodore and Karin Mayer Family Foundation Inc funds
How this funder distributes its grants
Grant Size Distribution
26 grants across all recorded years
The most common grant size was under $50K: 21 grants of 26 (81%).
Geographic Focus
Where this funder awards grants
Grant Distribution by State
Share of 2024 grant dollars across all 5 itemized grants.
Cities
How Theodore and Karin Mayer Family Foundation Inc gives
- Giving held roughly steady from 2021 to 2024 (+5%). 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 2024, annual grant giving ranged from $226K (2023) to $268K (2022). In 2024 it made 5 grants totaling $246K.
Grants by year
Grant recipients and amounts by year
| Recipient | Purpose | Amount |
|---|---|---|
| 5 grants to individuals Recipients not named | — | $246,224 |
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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 |
|---|---|---|---|---|---|---|---|
| 2024 | $5,205,080 | $232,771 | $246,224 | $246,224 | 5 | $246,224 | $232,771 |
| 2023 | $4,663,328 | $254,430 | $226,405 | $226,405 | 5 | $226,405 | $254,430 |
| 2022 | $4,660,941 | $291,868 | $268,049 | $268,049 | 5 | $268,049 | $222,806 |
| 2021 | $5,099,783 | $338,510 | $234,450 | $234,450 | 5 | $234,450 | $243,492 |
| 2020 | $4,662,788 | $257,809 | $237,600 | $237,600 | 6 | — | $209,205 |
Leadership & Key People
Officers and directors from IRS filings
Theodore and Karin Mayer Family Foundation Inc is led by Kathryn E Mayer, President & Treasurer on every filing since 2020; none of the 3 officers listed in 2024 report compensation.
Officers on the 2024 filing
Kathryn E Mayer
President & Treasurer
On filings since 2020
No compensation reported
Gerald Spitzkoff
Vice President
On filings since 2020
No compensation reported
Rose-Marie Stock
Secretary
On filings since 2020
No compensation reported
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 Theodore and Karin Mayer Family Foundation Inc
How much does Theodore and Karin Mayer Family Foundation Inc give each year?
Theodore and Karin Mayer Family Foundation Inc gave $246K across 5 grants in 2024, according to its 2024 IRS Form 990-PF. In 2023 it gave $226K across 5 grants.
What is Theodore and Karin Mayer Family Foundation Inc's typical grant size?
Theodore and Karin Mayer Family Foundation Inc's median grant in 2024 was $20,000, and its average grant was $49,245, across 5 grants on its 2024 IRS Form 990-PF.
Where does Theodore and Karin Mayer Family Foundation Inc give grants?
Theodore and Karin Mayer Family Foundation Inc gives mostly in New York: 97% of the grant dollars itemized on its 2024 IRS Form 990-PF went to recipients there.
Does Theodore and Karin Mayer Family Foundation Inc give general operating support?
Not in 2024: none of the 5 grants with a stated purpose on Theodore and Karin Mayer Family Foundation Inc's 2024 IRS Form 990-PF were described as general or operating support.
How large is Theodore and Karin Mayer Family Foundation Inc?
Theodore and Karin Mayer Family Foundation Inc reported $5.2M in total assets on its 2024 IRS Form 990-PF. Its revenue that year was $233K.
What is Theodore and Karin Mayer Family Foundation Inc's EIN?
Theodore and Karin Mayer Family Foundation Inc's EIN (Employer Identification Number) is 45-5310845. 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
(6)
When this profile's IRS filing data changed on Grantable
- Updated Form 990-PF for fiscal year 2020 (received by the IRS November 9, 2021)
- Updated Form 990-PF for fiscal year 2021 (received by the IRS November 2, 2022)
- Updated Form 990-PF for fiscal year 2022 (received by the IRS September 29, 2023)
- Updated Form 990-PF for fiscal year 2023 (received by the IRS May 15, 2024)
- Updated Form 990-PF for fiscal year 2024 (received by the IRS October 1, 2025)
- IRS filings on file for fiscal years 2020–2024
Live grants for the work Theodore and Karin Mayer Family Foundation Inc funds
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