Private Foundation

Ernest and Joan Trefz Foundation

Ernest and Joan Trefz Foundation, of Bridgeport, CT, is a Private Foundation tracked in Imperigo's IRS 990 database. The 2025 filing shows $3.4M in revenue, $2.6M in expenses, $8.7M in total assets. IRS filings disclose 746 grants awarded by this foundation, totaling roughly $16.3M.

EIN: 061485833 Bridgeport, CT Latest filing: 2025

Total Revenue$3.4M

Total Expenses$2.6M

Total Assets$8.7M

Grants Given746

Grant Total$16.3M

Filing Years2021–2025

Sample Grants Given

University of Bridgeport

Bridgeport, CT · 2024

In Furtherance of Stated Objectives of the Foundation

$400,000

Norwalk Hospital Foundation

Norwalk, CT · 2024

In Furtherance of Stated Objectives of the Foundation

$250,000

ST Vincent'S Medical Center Foundation

Bridgeport, CT · 2024

In Furtherance of Stated Objectives of the Foundation

$217,000

Ronald McDonald House Greater Hudson Valley

Valhalla, NY · 2024

In Furtherance of Stated Objectives of the Foundation

$132,000

Ronald McDonald House Of New Haven CT

New Haven, CT · 2024

In Furtherance of Stated Objectives of the Foundation

$125,000

Showing up to 5 of 746 total records — full history available with membership.

Officers & Directors

Trustee Christian C Trefz

Trustee Linda M Trefz

Trustee Paul D Trefz

Officer compensation and complete director data available with membership.

Top Grant Purposes

In Furtherance of Stated Objectives of the Foundation

$14,950,230 663 grants

IN FURTHERANCE OF STATED OBJECTIVES OF THE FOUNDATION

$1,364,522 83 grants

Financial Trends

Year	Revenue	Expenses	Assets
2025	$3.4M	$2.6M	$8.7M
2024	$1.9M	$2.5M	$7.7M
2023	$1.2M	$2.4M	$8.2M
2022	$1.4M	$2.1M	$15.1M
2021	$1.2M	$2.1M	$15.7M

Between 2021 and 2025, reported annual revenue grew from $1.2M to $3.4M (+173%), with total assets most recently reported at $8.7M.

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

Grant Geography

Grants from this foundation were reported to recipients in CA, CO, CT, IN, MA, NY.

CACOCTINMANY

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

See the full picture for Ernest and Joan Trefz Foundation

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