Data update history
January 14, 2024
Posted financials
Added Form 990PF for fiscal year 2022
December 31, 2023
Used new vendors
Identified 2 new vendors, including , and
December 14, 2023
Updated personnel
Identified 4 new personnel
July 18, 2023
Posted financials
Added Form 990PF for fiscal year 2021
May 7, 2023
Used new vendors
Identified 1 new vendor, including
Nonprofit Types
Grantmaking organizationsPrivate foundationsPrivate non-operating foundationsCharities
Issues
Education
Characteristics
Provides grantsTax deductible donations
General information
- Address
- PO Box 9283
- Mclean, VA 22102
- Metro area
- Washington-Arlington-Alexandria, DC-VA-MD-WV
- County
- Fairfax County, VA
- Website URL
- weissbergfoundation.org/
- Phone
- (703) 276-7500
- Twitter profile
- @weissbergfdn
IRS details
- EIN
- 54-1475954
- Fiscal year end
- December
- Taxreturn type
- Form 990-PF
- Year formed
- 1990
- Eligible to receive tax-deductible contributions (Pub 78)
- Yes
Categorization
- NTEE code, primary
- T20: Private Foundations
- NAICS code, primary
- 813211: Grantmaking Foundations
- Parent/child status
- Independent
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