Data update history
July 18, 2026
Posted financials
Added Form 990PF for fiscal year 2025
April 7, 2026
Posted financials
Added Form 990PF for fiscal year 2024
August 19, 2024
Posted financials
Added Form 990PF for fiscal year 2023
November 25, 2023
Posted financials
Added Form 990PF for fiscal year 2021
July 8, 2023
Posted financials
Added Form 990PF for fiscal year 2022
Nonprofit Types
Grantmaking organizationsPrivate foundationsFamily foundationsPrivate non-operating foundationsCharities
Issues
Homelessness
Characteristics
Provides grantsPartially liquidatedState / local levelTax deductible donationsNo full-time employees
General information
- Address
- 2979 Pga Blvd 201
- Palm Beach Gardens, FL 33410
- Metro area
- Miami-Fort Lauderdale-Pompano Beach, FL
- County
- Palm Beach County, FL
- Phone
- (516) 656-0200
IRS details
- EIN
- 84-4134829
- Fiscal year end
- December
- Taxreturn type
- Form 990-PF
- Year formed
- 2020
- 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
Free account sign-up
Want updates when Joann and John J Tambakis Charitable Foundation has new information, or want to find more organizations like Joann and John J Tambakis Charitable Foundation?
Create free Cause IQ account