EAST HAMPTON, NY
Longhouse Reserve
Quick Facts
- EIN
- 33-1058583
- Location
- EAST HAMPTON, NY
- Category
- Education
- NTEE Code
- B82
- Total Assets
- $9.9M
- Annual Income
- $2.9M
- Annual Revenue
- $2M
- IRS Ruling Year
- 2004
- Tax Subsection
- 501(c)(03)
About This Organization
Longhouse Reserve is a nonprofit organization based in EAST HAMPTON, NY. It received its IRS tax-exempt ruling in 2004. The organization is classified under IRC Section 501(c)(03). It operates in the area of education. Total assets are reported at $9.9M. Annual income is $2.9M. The organization has received $1.6M in foundation grants from 30 funders.
Grants Received from Foundations
Foundation grants awarded to Longhouse Reserve, based on IRS 990-PF filings.
Funding history
Longhouse Reserve appears in 68 foundation grant records totaling $1.7 million between 2020 and 2024, with a median grant of $2,500. Its strongest year in this record was 2021, with $1.5 million across 18 grants. The single largest grant on record is $1.3 million.
The grants come from 38 distinct funders; Joseph & Sylvia Slifka Foundation Inc. is the largest at $1.3 million across 1 grant, which is 73 percent of the recorded total. Other significant funders include The Jenesis Group ($85,000), Goldman-Sonnenfeldt Foundation Inc. ($73,300) and Horace W Goldsmith Foundation ($60,000).
| Year | Grants | Total |
|---|---|---|
| 2020 | 10 | $94.3K |
| 2021 | 18 | $1.5M |
| 2022 | 28 | $101.1K |
| 2023 | 11 | $55.5K |
| 2024 | 1 | $2.6K |
Largest funders: Joseph & Sylvia Slifka Foundation Inc., The Jenesis Group, Goldman-Sonnenfeldt Foundation Inc., Horace W Goldsmith Foundation, Roy And Niuta Titus Foundation Inc..
Grant records from funders’ IRS Form 990-PF Part XV filings. Last verified September 2026.
Frequently Asked Questions
What does Longhouse Reserve do?
Longhouse Reserve is a nonprofit organization focused on education, based in EAST HAMPTON, NY. It is classified under IRC Section 501(c)(03).
Who funds Longhouse Reserve?
Longhouse Reserve has received foundation grants from Roy And Niuta Titus Foundation Inc., Milton And Sally Avery Arts Foundation Inc., Penniman Foundation Inc., and others.
What is Longhouse Reserve's annual revenue?
Longhouse Reserve reports total assets of $9.9M. Annual income is $2.9M.
Where is Longhouse Reserve located?
Longhouse Reserve is located in EAST HAMPTON, NY.
Is Longhouse Reserve a 501(c)(3)?
Yes, Longhouse Reserve is a 501(c)(3) tax-exempt organization. Its EIN is 33-1058583. Donations to this organization may be tax-deductible.
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