The Jack Mattsson Foundation
The Jack Mattsson Foundation is a private foundation focused on Medical Research, based in Glen Rock, NJ. IRS filing data is available from 2020 through 2025. As of 2025, the organization holds $23K in total assets. In 2025, it awarded 3 grants totaling $7K.
The Jack Mattsson Foundation at a glance
In short: The Jack Mattsson Foundation gave $7K across 3 grants in 2025 (avg $2K), mostly in Maryland. Source: 2025 IRS Form 990-PF.
- Annual giving (2025)
- $7,000
- -65.9% vs 2024
- Grants made (2025)
- 3
- -25.0% vs 2024
- Average grant
- $2,333
- -54.5% vs 2024
- Median grant
- $1,000
- Total assets
- $23,199
- -1.8% vs 2024
- Primary geography
- Maryland (71% of itemized 2025 grant dollars)
- Latest 990 filing
- Form 990-PF, 2025 View filing
Data from IRS Form 990-PF, 2025; updated September 2026.
Who The Jack Mattsson Foundation funds
How this funder distributes its grants
Top Recipients
Top recipient in 2025
The largest 2025 recipient was Sarcoma Foundation of America ($5K).
Organizations only. It also paid 2 individual scholarships ($2,000), which are not listed by name.
Grant Size Distribution
14 grants across all recorded years
The most common grant size was under $50K: 14 grants of 14 (100%).
Geographic Focus
Where this funder awards grants
Grant Distribution by State
Share of 2025 grant dollars across all 3 itemized grants.
Cities
How The Jack Mattsson Foundation gives
- Giving grew 40% from 2022 to 2025. 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 2025, annual grant giving ranged from $4K (2020) to $21K (2024). In 2025 it made 3 grants totaling $7K.
Grants by year
Grant recipients and amounts by year
| Recipient | Purpose | Amount |
|---|---|---|
| Sarcoma Foundation of America Damascus, MD | Donation for research | $5,000 |
| 2 individual scholarships Recipients not named | — | $2,000 |
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Financial History
Multi-year comparison from IRS filings
| Filing year | Total Assets | Revenue | Expenses | Grants paid | Grants | Qualifying Distributions |
|---|---|---|---|---|---|---|
| 2025 | $23,199 | $8,252 | $8,678 | $7,000 | 3 | $7,000 |
| 2024 | $23,625 | $16,105 | $34,842 | $20,500 | 4 | $20,500 |
| 2023 | $42,362 | $65,584 | $50,537 | $7,000 | 3 | $7,000 |
| 2022 | $27,315 | $2,609 | $7,106 | $5,000 | 1 | $5,000 |
| 2021 | $31,812 | $38,581 | $38,153 | $12,900 | 3 | $12,900 |
| 2020 | $31,384 | $32,464 | $22,888 | $3,500 | 2 | — |
Leadership & Key People
Officers and directors from IRS filings
The Jack Mattsson Foundation is led by Rudy Mattsson, President on every filing since 2020; none of the 3 officers listed in 2025 report compensation.
Officers on the 2025 filing
Rudy Mattsson
President
On filings since 2020
5 hrs/week
No compensation reported
Erik Mattsson
Director
On filings since 2020
2 hrs/week
No compensation reported
Maureen Mattsson
Director
On filings since 2020
2 hrs/week
No compensation reported
Data from IRS Form 990 filings, 2020–2025. "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 The Jack Mattsson Foundation
How much does The Jack Mattsson Foundation give each year?
The Jack Mattsson Foundation gave $7K across 3 grants in 2025, according to its 2025 IRS Form 990-PF. In 2024 it gave $21K across 4 grants.
What is The Jack Mattsson Foundation's typical grant size?
The Jack Mattsson Foundation's median grant in 2025 was $1,000, and its average grant was $2,333, across 3 grants on its 2025 IRS Form 990-PF.
Where does The Jack Mattsson Foundation give grants?
The Jack Mattsson Foundation gives mostly in Maryland: 71% of the grant dollars itemized on its 2025 IRS Form 990-PF went to recipients there. The next largest state was New Jersey (29%).
Does The Jack Mattsson Foundation give general operating support?
Not in 2025: none of the 3 grants with a stated purpose on The Jack Mattsson Foundation's 2025 IRS Form 990-PF were described as general or operating support.
How large is The Jack Mattsson Foundation?
The Jack Mattsson Foundation reported $23K in total assets on its 2025 IRS Form 990-PF. Its revenue that year was $8K.
What is The Jack Mattsson Foundation?
The Jack Mattsson Foundation is a private foundation focused on Medical Research, based in Glen Rock, NJ. It holds $23K in total assets as of 2025.
What is The Jack Mattsson Foundation's EIN?
The Jack Mattsson Foundation's EIN (Employer Identification Number) is 82-5083706. IRS Form 990 filing data is available on this page for 2020–2025.
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 11, 2021)
- Updated Form 990-PF for fiscal year 2021 (received by the IRS November 11, 2022)
- Updated Form 990-PF for fiscal year 2022 (received by the IRS May 31, 2023)
- Updated Form 990-PF for fiscal year 2023 (received by the IRS November 5, 2024)
- Updated Form 990-PF for fiscal year 2024 (received by the IRS May 13, 2025)
- Added Form 990-PF for fiscal year 2025 (received by the IRS May 8, 2026)
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