Frank P Diassi and Marianne R Diassi
Frank P Diassi and Marianne R Diassi is a private foundation, based in Florham Park, NJ. IRS filing data is available from 2020 through 2024. As of 2024, the organization holds $570K in total assets. In 2024, it awarded 1 grant totaling $2.0M. Net investment income was $528K.
Frank P Diassi and Marianne R Diassi at a glance
In short: Frank P Diassi and Marianne R Diassi gave $2.0M across 1 grant in 2024 (avg $2.0M), mostly in Illinois. Source: 2024 IRS Form 990-PF.
- Annual giving (2024)
- $2,000,000
- +700.0% vs 2023
- Grants made (2024)
- 1
- +0.0% vs 2023
- Average grant
- $2,000,000
- +700.0% vs 2023
- Median grant
- $2,000,000
- Total assets
- $569,664
- -72.1% vs 2023
- Primary geography
- Illinois (100% 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 Frank P Diassi and Marianne R Diassi funds
How this funder distributes its grants
Top Recipients
Top recipient in 2024
The largest 2024 recipient was University of Chicago ($2.0M).
Grant Size Distribution
17 grants across all recorded years
The most common grant size was under $50K: 7 grants of 17 (41%).
Geographic Focus
Where this funder awards grants
Grant Distribution by State
Share of the 2024 grant dollars on its one itemized grant.
Cities
How Frank P Diassi and Marianne R Diassi gives
- Giving grew 806% from 2021 to 2024. Method
- In 2024 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 2024, annual grant giving ranged from $175K (2020) to $2.0M (2024). In 2024 it made 1 grant totaling $2.0M.
Grants by year
Grant recipients and amounts by year
| Recipient | Purpose | Amount |
|---|---|---|
| University of Chicago Chicago, IL | To Provide Organizational Support | $2,000,000 |
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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 | $569,664 | $547,770 | $2,021,326 | $2,000,000 | 1 | $2,000,000 | $527,944 | $112,788 |
| 2023 | $2,041,908 | $96,656 | $264,846 | $250,000 | 1 | $250,000 | $84,810 | $114,346 |
| 2022 | $2,206,570 | $150,967 | $429,097 | $397,000 | 5 | $413,048 | $134,919 | $123,919 |
| 2021 | $2,484,700 | $234,692 | $246,494 | $220,800 | 8 | $233,647 | $221,773 | $155,691 |
| 2020 | $2,494,027 | $376,670 | $207,887 | $175,000 | 2 | — | $364,821 | $126,505 |
Under IRS private-foundation payout rules, Frank P Diassi and Marianne R Diassi reported a distributable amount of $113K for 2024 — the minimum it must pay out in qualifying distributions.
Leadership & Key People
Officers and directors from IRS filings
Frank P Diassi and Marianne R Diassi is led by Frank P. Diassi, President & Treasurer on every filing since 2020; none of the 2 officers listed in 2024 report compensation.
Officers on the 2024 filing
Frank P. Diassi
President & Treasurer
On filings since 2020
1 hr/week
No compensation reported
Diane Giaimo
Secretary
On filings since 2020
1 hr/week
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 Frank P Diassi and Marianne R Diassi
How much does Frank P Diassi and Marianne R Diassi give each year?
Frank P Diassi and Marianne R Diassi gave $2.0M across 1 grant in 2024, according to its 2024 IRS Form 990-PF. In 2023 it gave $250K across 1 grant.
How large is Frank P Diassi and Marianne R Diassi?
Frank P Diassi and Marianne R Diassi reported $570K in total assets on its 2024 IRS Form 990-PF. It paid out $2.0M in qualifying distributions that year, against a required minimum of $113K (roughly 5% of its investment assets).
Where does Frank P Diassi and Marianne R Diassi operate?
Frank P Diassi and Marianne R Diassi has awarded grants in Illinois, New Jersey, New York, Tennessee.
What is Frank P Diassi and Marianne R Diassi's EIN?
Frank P Diassi and Marianne R Diassi's EIN (Employer Identification Number) is 26-0141688. 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
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