Joann and John J Tambakis Charitable Foundation Inc

Historical Funder

Palm Beach Gardens, Florida · EIN 84-4134829 · Private foundation

Grants paid (2025)$120K

Organizations funded2

Typical grant$20,000

Total assets$2M

Half of its grants to organizations were between $20,000 and $100,000.

Funders like this one, matched to your nonprofit

Set your own state and causes to see which of thousands of foundations fit you best.

Find my best-fit funders - free

From the return

How to apply

The foundation filed the following application information (Form 990-PF Part XV, tax year 2025):

Contact	JOANN TAMBAKIS
Address	14301 PARADISE POINT ROAD, PALM BEACH GARDENS FL 33410
Phone	5616028022
Form and materials	LETTER WITH SUPPORTING DOCUMENTS.
Deadlines	NONE.
Restrictions	NONE.

Copied as filed. Deadlines on a tax return describe the foundation's usual process; they are not confirmation of a current open cycle.

What it funds

Share of grant lines on the latest return, classified from the purpose each grant states.

Animal Welfare1
Faith-Based1
Homelessness1
Human Services1

Where it gives

50% of grants went outside Florida.

Grants paid in tax year 2025

Recipient	Location	Purpose	Amount
St John Chrysostom Greek Orthodox Church	Hobe Sound, FL	Building fund	$100,000
The Cat Collaborative	Philadelphia, PA	Devoted to helping homeless cats in philadelphia.	$20,000

Giving by year

Tax year	Grants paid	Grant lines
2025	$120,000	2
2024	$100,000	1
2023	$111,000	1

Sources

IRS Form 990-PF, tax year 2025, filed May 20, 2026 - IRS e-file batch, object ID 202641409349100019
IRS Tax Exempt Organization Search for EIN 84-4134829
Profile updated Nov 10, 2026

Facts on this page come from the foundation's own IRS Form 990-PF filings as published by the IRS. Grantvello does not know whether a foundation is accepting proposals right now: a past grant is not an open opportunity. Always confirm current guidelines with the funder before applying.