Sphinx Foundation
See schedule osphinx foundation (the foundation) promotes certain educational and charitable purposes within the meaning of section 501(c)(3) of the internal revenue code of 1986, as amended (the code). More specifically, the purposes for which the corporation is formed include:
Sphinx Foundation at a glance
In short: Sphinx Foundation gave $78K across 2 grants in 2025 (avg $39K), mostly in New Hampshire. Source: 2025 IRS Form 990.
- Annual giving (2025)
- $78,000
- -43.6% vs 2024
- Grants made (2025)
- 2
- +100.0% vs 2024
- Average grant
- $39,000
- -71.8% vs 2024
- Median grant
- $39,000
- Total assets
- $7,279,426
- +19.0% vs 2024
- Primary geography
- New Hampshire (100% of itemized 2025 grant dollars)
- Latest 990 filing
- Form 990, 2025 View filing
Data from IRS Form 990, 2025; updated September 2026.
Who Sphinx Foundation funds
How this funder distributes its grants
Top Recipients
Top 2 recipients in 2025
The largest 2025 recipient was Dartmouth College ($43K). Together the top 2 received $78K.
Grant Size Distribution
6 grants across all recorded years
The most common grant size was under $50K: 5 grants of 6 (83%).
Geographic Focus
Where this funder awards grants
Grant Distribution by State
Share of 2025 grant dollars across all 2 itemized grants.
States
Cities
How Sphinx Foundation gives
- Giving grew 334% from 2022 to 2025. Method
From the foundation's IRS Form 990 filings. Methodology.
Giving History
Giving Over Time
Total grant dollars and number of grants per year
From 2021 to 2025, annual grant giving ranged from $18K (2022) to $138K (2024). In 2025 it made 2 grants totaling $78K.
Grants by year
Grant recipients and amounts by year
| Recipient | Purpose | Amount |
|---|---|---|
| Dartmouth College Hanover, NH | Educational | $43,000 |
| Pine Park Association Hanover, NH | Environmental Preservation | $35,000 |
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Financial History
Multi-year comparison from IRS filings
| Filing year | Total Assets | Revenue | Expenses | Grants paid | Grants | Net Investment Income |
|---|---|---|---|---|---|---|
| 2025 | $7,279,426 | $795,714 | $266,158 | $78,000 | 2 | $214,345 |
| 2024 | $6,115,164 | $1,809,020 | $282,818 | $138,365 | 1 | $1,177,076 |
| 2023 | $5,087,311 | $718,414 | $189,494 | $20,500 | 1 | $348,143 |
| 2022 | $4,355,384 | $459,364 | $160,400 | $17,960 | 1 | $151,916 |
| 2021 | $4,864,045 | $605,640 | $153,395 | $27,000 | 1 | $228,183 |
| 2020 | $4,082,953 | $394,990 | $148,414 | — | — | $60,394 |
About Sphinx Foundation
Based on IRS filings
Sphinx Foundation is a public charity focused on Arts, Culture & Humanities, based in Hanover, NH. IRS filing data is available from 2020 through 2025. As of 2025, the organization holds $7.3M in total assets. In 2025, it awarded 2 grants totaling $78K. Net investment income was $214K.
Focus Areas
Leadership & Key People
Officers and directors from IRS filings
Sphinx Foundation is led by Thomas D. Slosberg, President on the 2025 filing; none of the 17 officers listed in 2025 report compensation.
Officers on the 2025 filing
Thomas D. Slosberg
President
New on the 2025 filing
1 hr/week
No compensation reported
Chad E. Silverman
Board Member
On filings since 2020
1 hr/week
No compensation reported
David A. Harrison
Vice President
Board Member → Vice President, 2024
On filings since 2020
1 hr/week
No compensation reported
Jon Merriman
Board Member
On filings since 2020
1 hr/week
No compensation reported
Kwame Ohene-Adu
Secretary
On filings since 2020
1 hr/week
No compensation reported
Peter Frederick
President Emeritus
President → President Emeritus, 2023
On filings since 2020
1 hr/week
No compensation reported
Wilson Handler
Board Member
On filings since 2020
1 hr/week
No compensation reported
James Parker
Board Member
On filings since 2022
1 hr/week
No compensation reported
James Wendell Beane III
Board Member
On filings since 2022
1 hr/week
No compensation reported
Joseph F. Dempsey Jr.
Treasurer
Board Member → Treasurer, 2023
On filings since 2022
1 hr/week
No compensation reported
Matt Nicholson
Board Member
On filings since 2022
1 hr/week
No compensation reported
Paul Centenari
Board Member
On filings since 2022
1 hr/week
No compensation reported
Robert T. Esposito
Board Member
On filings since 2022
1 hr/week
No compensation reported
Scott Mackle
Board Member
On filings since 2022
1 hr/week
No compensation reported
Steve Linde
Board Member
On filings since 2022
1 hr/week
No compensation reported
George L. Faux
Vice President
On filings since 2023
1 hr/week
No compensation reported
Ian Sistare
Board Member
New on the 2025 filing
1 hr/week
No compensation reported
Former officers (11)
- Former: Jaan Lumi (2020–2024) — Board Member · Filing note: Through 122024
- Former: Neil Harrington (2020–2024) — Board Member
- Former: Tom Slosberg (2020–2024) — President
- Former: Steve Cordy (2020–2023) — Treasurer
- Former: Dean Mokas (2020–2022) — Board Member · Filing note: Thru 722
- Former: Jerry Bird (2020–2022) — Board Member · Filing note: Thru 722
- Former: Jim Truncellito (2020–2022) — Board Member · Filing note: Thru 722
- Former: Marty Milligan (2020–2022) — Board Member
- Former: Ted Newhouse (2020–2022) — Board Member · Filing note: Thru 722
- Former: Peter Cowan (2020–2021) — Board Member
- Former: Rob Esposito (2020–2021) — Board Member
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 Sphinx Foundation
How much does Sphinx Foundation give each year?
Sphinx Foundation gave $78K across 2 grants in 2025, according to its 2025 IRS Form 990. In 2024 it gave $138K across 1 grant.
How large is Sphinx Foundation?
Sphinx Foundation reported $7.3M in total assets on its 2025 IRS Form 990. Its revenue that year was $796K.
What is Sphinx Foundation?
Sphinx Foundation is a public charity focused on Arts, Culture & Humanities, based in Hanover, NH. It holds $7.3M in total assets as of 2025.
Where does Sphinx Foundation operate?
Sphinx Foundation has awarded grants in New Hampshire.
What is Sphinx Foundation's EIN?
Sphinx Foundation's EIN (Employer Identification Number) is 02-6007881. IRS Form 990 filing data is available on this page for 2020–2025.
Data last updated September 2026. Sourced from IRS Form 990 filings.
Data update history
(6)
When this profile's IRS filing data changed on Grantable
- Updated Form 990 for fiscal year 2021 (received by the IRS November 15, 2022)
- Updated Form 990 for fiscal year 2022 (received by the IRS November 11, 2023)
- Updated Form 990 for fiscal year 2023 (received by the IRS June 6, 2024)
- Updated Form 990 for fiscal year 2024 (received by the IRS September 12, 2025)
- Added Form 990 for fiscal year 2025 (received by the IRS May 12, 2026)
- IRS filings on file for fiscal years 2020–2024
Live grants for the work Sphinx Foundation funds
Arts, Culture & Humanities Open opportunities, soonest deadline first.
Explore Open Grants
Browse active grant opportunities in Sphinx Foundation's focus areas in our free grants database
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Figures come from Sphinx Foundation's IRS filings (methodology). AI-written summaries, news items and logos are not covered by the open licence. Spot an error? Email hello@grantable.co.
Sphinx Foundation down — hundreds of funders to go?