The NSN Foundation concentrates its philanthropy on advancing biomedical research—particularly funding clinical trials and work on neurodegenerative diseases—while also channeling very large gifts into Jewish philanthropic vehicles. Grants are highly concentrated in New Jersey and New York and directed at a small number of organizations, suggesting the foundation prefers deep, strategic investments over broad, diffuse giving. Repeated multi-million-dollar grants indicate a focus on endowment-building and sustained program support for research translation and community philanthropy.
NSN Foundation Inc Attn Ken Slutsky Tax Exempt Inst Grp gives on a very large scale through a small set of recipients, with its biggest recent commitments tied to neurodegenerative disease research and clinical-trial support. The foundation’s largest grant on file was a $245,447,724 award to CHDI Foundation Inc Attn Ken Slutsky Tax Exempt Inst Grp for medical and scientific research in neurodegenerative diseases. Another major strand is capitalizing a philanthropic vehicle for trial funding: High Q Foundation Inc Attn Ken Slutsky Tax Exempt Inst Grp received $150,000,000 to establish an endowment for suitable clinical trials, followed by additional large increases in later years. The pattern points to long-horizon support for research translation rather than smaller project grants spread across many organizations. Alongside those science-focused gifts, the foundation also directs substantial funding to Jewish communal philanthropy through the Jewish Communal Fund in New York. The recent record shows repeated seven- and eight-figure grants to the same organizations over multiple years, indicating a sustained relationship with a compact set of institutional grantees.
A defining area is neurodegenerative disease research. CHDI Foundation Inc Attn Ken Slutsky Tax Exempt Inst Grp received $100,000,000 in 2025 to further its direct charitable activities promoting and assisting medical and scientific research in that field. The same organization also received $150,000,000 in 2023 for the same purpose. Clinical-trial support is another core theme. High Q Foundation Inc Attn Ken Slutsky Tax Exempt Inst Grp received $126,913,672 in 2024 to increase a charitable endowment for suitable clinical trials, after a $150,000,000 grant in 2023 to establish that fund. A third area is Jewish communal giving: the Jewish Communal Fund in New York received $64,000,000 in 2025 for the general fund of the charity. These grants show a mix of direct research support, endowment building, and intermediary charitable funding.
Grant sizes are exceptionally large: the typical grant size sits at a p25 of $67,353,418, a median of $138,456,836, and a p75 of $150,000,000. The record shows repeated awards to the same recipients across 2023, 2024, and 2025, including multi-year support for both a research foundation and a clinical-trial endowment vehicle. The foundation appears to operate through institutional grants rather than individual giving, and the grants shown are all to U.S. recipients. The recent pattern is consistent with concentrated, high-value support rather than a broad, application-driven portfolio.
$279M
$171M
$377.1M
$287.6M
Most grants fall between $67.4M and $150M, with a median of $138.5M.
25th Percentile
$67.4M
Median
$138.5M
75th Percentile
$150M
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Very concentrated: a handful of very large, repeat grants to the same organizations (multi-year/endowment-style commitments) rather than many small or widely distributed awards.
Notable grantees: CHDI Foundation Inc, High Q Foundation Inc, Jewish Communal Fund
Giving is highly concentrated in New Jersey, which accounts for 67% of grants and is the top state by grant count. Recent recipient locations cluster in Roseland, NJ, including CHDI Foundation Inc Attn Ken Slutsky Tax Exempt Inst Grp and High Q Foundation Inc Attn Ken Slutsky Tax Exempt Inst Grp. New York City also appears through the Jewish Communal Fund in New York, NY. All recent grants in the file went to U.S. recipients, matching the foundation’s regional scope of giving.
The foundation backs biomedical research and clinical-trial infrastructure, especially around neurodegenerative diseases, and also makes large charitable grants through Jewish communal philanthropy vehicles. Recent awards went to CHDI Foundation Inc Attn Ken Slutsky Tax Exempt Inst Grp, High Q Foundation Inc Attn Ken Slutsky Tax Exempt Inst Grp, and the Jewish Communal Fund in New York.
Yes. The same recipients appear across multiple years. CHDI Foundation Inc Attn Ken Slutsky Tax Exempt Inst Grp received awards in 2023, 2024, and 2025, and High Q Foundation Inc Attn Ken Slutsky Tax Exempt Inst Grp also received grants in 2023, 2024, and 2025.
The grant-size distribution is very large: p25 is $67,353,418, median is $138,456,836, and p75 is $150,000,000. That profile suggests the foundation usually makes very substantial institutional grants rather than smaller awards.
New Jersey is the top state by grant count, with 67% of grants going to recipients in the HQ state. Recent New Jersey recipients include organizations in Roseland, NJ.
No. The foundation does not fund individuals and its grant record shows institutional recipients only, all of them U.S.-based in the recent file.
2025
Source: IRS Form 990-PF, fiscal year 2025.
Most recent grants reported to the IRS.
| Recipient | Location | Amount | Year | Purpose |
|---|---|---|---|---|
| High Q Foundation Inc Attn Ken Slutsky Tax Exempt Inst Grp | Roseland, NJ | $115,000,000 | 2025 | To increase the charitable endowment which shall serve as a philanthropic fund for the primary purpose of supporting suitable clinical trials. |
| CHDI Foundation Inc Attn Ken Slutsky Tax Exempt Inst Grp | Roseland, NJ | $100,000,000 | 2025 | To further CHDI's direct charitable activities of promoting and assisting in medical and scientific research in the field of neurodegenerative diseases. |
| Jewish Communal Fund | New York, NY | $64,000,000 | 2025 | For the general fund of the charity |
| CHDI Foundation Inc Attn Ken Slutsky Tax Exempt Inst Grp | Roseland, NJ | $245,447,724 | 2024 | To further CHDI's direct charitable activities of promoting and assisting in medical and scientific research in the field of neurodegenerative diseases. |
| High Q Foundation Inc Attn Ken Slutsky Tax Exempt Inst Grp | Roseland, NJ | $126,913,672 | 2024 | To increase the charitable endowment which shall serve as a philanthropic fund for the primary purpose of supporting suitable clinical trials. |
| Jewish Communal Fund | New York, NY | $47,500,000 | 2024 | For the general fund of the charity |
| High Q Foundation Inc Attn Ken Slutsky Tax Exempt Inst Grp | Roseland, NJ | $150,000,000 | 2023 | To establish a charitable endowment which shall serve as a philanthropic fund for the primary purpose of funding suitable clinical trials. |
| CHDI Foundation Inc Attn Ken Slutsky Tax Exempt Inst Grp | Roseland, NJ | $150,000,000 | 2023 | To further CHDI's direct charitable activities of promoting and assisting in medical and scientific research in the field of neurodegenerative diseases. |
| Jewish Communal Fund | New York, NY | $34,000,000 | 2023 | For the general fund of the charity |
High Q Foundation Inc Attn Ken Slutsky Tax Exempt Inst Grp
$115,000,000To increase the charitable endowment which shall serve as a philanthropic fund for the primary purpose of supporting suitable clinical trials.
CHDI Foundation Inc Attn Ken Slutsky Tax Exempt Inst Grp
$100,000,000To further CHDI's direct charitable activities of promoting and assisting in medical and scientific research in the field of neurodegenerative diseases.
CHDI Foundation Inc Attn Ken Slutsky Tax Exempt Inst Grp
$245,447,724To further CHDI's direct charitable activities of promoting and assisting in medical and scientific research in the field of neurodegenerative diseases.
High Q Foundation Inc Attn Ken Slutsky Tax Exempt Inst Grp
$126,913,672To increase the charitable endowment which shall serve as a philanthropic fund for the primary purpose of supporting suitable clinical trials.
High Q Foundation Inc Attn Ken Slutsky Tax Exempt Inst Grp
$150,000,000To establish a charitable endowment which shall serve as a philanthropic fund for the primary purpose of funding suitable clinical trials.
CHDI Foundation Inc Attn Ken Slutsky Tax Exempt Inst Grp
$150,000,000To further CHDI's direct charitable activities of promoting and assisting in medical and scientific research in the field of neurodegenerative diseases.