Private Foundation

JOANN AND JOHN J TAMBAKIS CHARITABLE FOUNDATION INC

JOANN AND JOHN J TAMBAKIS CHARITABLE FOUNDATION INC is a Private Foundation headquartered in PALM BEACH GARDENS, FL. Financial data from the 2025 filing: $86K revenue, $150K expenses, $1.4M total assets. IRS filings disclose 8 grants awarded by this foundation, totaling roughly $581K.

EIN: 844134829 PALM BEACH GARDENS, FL Private Grantmaking Foundations NTEE: T20 Latest filing: 2025

Total Revenue$86K

Total Expenses$150K

Total Assets$1.4M

Grants Given8

Grant Total$581K

Filing Years2021–2025

Sample Grants Given

ST JOHN CHRYSOSTOM GREEK ORTHODOX CHURCH

HOBE SOUND, FL · 2025

BUILDING FUND

$100,000

THE CAT COLLABORATIVE

PHILADELPHIA, PA · 2025

DEVOTED TO HELPING HOMELESS CATS IN PHILADELPHIA.

$20,000

ST JOHN CHRYSOSTOM GREEK ORTHODOX CHURCH

HOBE SOUND, FL · 2024

BUILDING FUND

$100,000

ST JOHN CHRYSOSTOM GREEK ORTHODOX CHURCH

HOBE SOUND, FL · 2023

BUILDING FUND

$111,000

FREINDS OF ST NICHOLAS

NEW YORK, NY · 2022

CHURCH

$50,000

Showing up to 5 of 8 total records — full history available with membership.

Officers & Directors

PRESIDENT Joann Tambakis

VICE PRESIDENT/TREASURER John J Tambakis

SECRETARY Rebecca G Doane

Officer compensation and complete director data available with membership.

Top Grant Purposes

BUILDING FUND

$311,000 3 grants

CHURCH

$100,000 2 grants

SHELTER AND CARE FOR LOST, HOMELESS AND UNWANTED ANIMALS

$100,000 1 grant

PROVIDE SHELTER FOR HOMELESS ANIMALS

$50,000 1 grant

DEVOTED TO HELPING HOMELESS CATS IN PHILADELPHIA.

$20,000 1 grant

Financial Trends

Year	Revenue	Expenses	Assets
2025	$86K	$150K	$1.4M
2024	$68K	$144K	$1.5M
2023	$18K	$152K	$1.6M
2022	$31K	$170K	$1.7M
2021	$-33K	$24K	$1.8M

Between 2021 and 2025, reported annual revenue moved from $-33K to $86K, with total assets most recently reported at $1.4M.

Interactive year-over-year charts and full filing details available with membership.

Grant Geography

Grants from this foundation were reported to recipients in FL, NY, PA.

FLNYPA

Full geographic grant map with state-by-state breakdown available with membership.

See the full picture for JOANN AND JOHN J TAMBAKIS CHARITABLE FOUNDATION INC

Complete financials, all 8 grant records, officer compensation, year-over-year trend charts, a geographic grant map, and data exports — across 498,000+ organizations.

Full Financial History Complete Grant Activity Officer Compensation Year-over-Year Charts Geographic Grant Map Data Exports

Sample Grants Given

Officers & Directors

Top Grant Purposes

Financial Trends

Grant Geography

Similar Organizations in FL

See the full picture for JOANN AND JOHN J TAMBAKIS CHARITABLE FOUNDATION INC