Private Foundation

WILLIAM S KALLAOS FAMILY FOUNDATION

Based in CHESTERFIELD, MO, WILLIAM S KALLAOS FAMILY FOUNDATION operates as a Private Foundation. The organization reported $34K in revenue, $109K in expenses, $1.3M in total assets for fiscal year 2025. Imperigo tracks 96 reported grants from this foundation totaling approximately $689K.

EIN: 431902767 CHESTERFIELD, MO Latest filing: 2025

Total Revenue$34K

Total Expenses$109K

Total Assets$1.3M

Grants Given96

Grant Total$689K

Filing Years2021–2025

Sample Grants Given

ST JUDES CHILDRENS HOSPITAL

MEMPHIS, TN · 2025

CHARITABLE

$17,000

MAKE A WISH FOUNDATION

BALLWIN, MO · 2025

CHARITABLE

$10,000

AMERICAN RED CROSS

WASHINGTON, DC · 2025

CHARITABLE

$10,000

THE VARIETY CLUB CHILDRENS CHARITY

ST LOUIS, MO · 2025

CHARITABLE

$10,000

CARDINAL GLENNON CHILDRENS FOUNDATION

ST LOUIS, MO · 2025

CHARITABLE

$8,340

Showing up to 5 of 96 total records — full history available with membership.

Officers & Directors

SECRETARY, DIRECTOR Connie Kallaos

VICE-PRESIDENT, DIRECTOR Sandra Young

PRESIDENT, DIRECTOR William S Kallaos

TREASURER, DIRECTOR William S Kallaos Jr

Officer compensation and complete director data available with membership.

Top Grant Purposes

CHARITABLE

$689,350 96 grants

Financial Trends

Year	Revenue	Expenses	Assets
2025	$34K	$109K	$1.3M
2024	$76K	$105K	$1.4M
2023	$42K	$117K	$1.4M
2022	$29K	$117K	$1.5M
2021	$300K	$99K	$1.6M

Between 2021 and 2025, reported annual revenue declined from $300K to $34K (-89%), with total assets most recently reported at $1.3M.

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, DC, GA, IL, MD, and 4 other states.

CACODCGAILMDMONYPATN

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

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