Data update history
July 22, 2023
Posted financials
Added Form 990EZ for fiscal year 2022
July 3, 2023
Updated personnel
Identified 3 new personnel
July 1, 2023
Used new vendors
Identified 1 new vendor, including
June 22, 2023
Posted financials
Added Form 990EZ for fiscal year 2021
June 18, 2023
Updated personnel
Identified 2 new personnel
Nonprofit Types
Civic / social organizationsArts, culture, and humanities nonprofitsCharities
Issues
Arts, cultural, and humanitiesHistory
Characteristics
Partially liquidatedTax deductible donationsNo full-time employeesAccepts online donations
General information
- Address
- PO Box 1204
- Southold, NY 11971
- Metro area
- New York-Newark-Jersey City, NY-NJ-PA
- County
- Suffolk County, NY
- Website URL
- custerobservatory.org/
- Phone
- (631) 722-3850
IRS details
- EIN
- 11-6035623
- Fiscal year end
- June
- Taxreturn type
- Form 990-EZ
- Year formed
- 1942
- Eligible to receive tax-deductible contributions (Pub 78)
- Yes
Categorization
- NTEE code, primary
- A80: Historical Societies, Historical Preservation
- NAICS code, primary
- 813410: Civic and Social Organizations
- Parent/child status
- Independent
Free account sign-up
Want updates when Custer Institute has new information, or want to find more organizations like Custer Institute?
Create free Cause IQ account