Private Foundation

THE FREZADOS MASIUS RIEGER FOUNDATION

THE FREZADOS MASIUS RIEGER FOUNDATION, of WINNETKA, IL, is a Private Foundation tracked in Imperigo's IRS 990 database. The 2025 filing shows $201K in revenue, $254K in expenses, $2.9M in total assets. IRS filings disclose 90 grants awarded by this foundation, totaling roughly $477K.

EIN: 920244624 WINNETKA, IL Latest filing: 2025

Total Revenue$201K

Total Expenses$254K

Total Assets$2.9M

Grants Given90

Grant Total$477K

Filing Years2022–2025

Sample Grants Given

SALISBURY SCHOOL

SALISBURY, CT · 2025

GENERAL

$50,000

WINGS PROGRAM

PALATINE, IL · 2025

GENERAL

$33,700

NORTH SHORE COUNTRY DAY SCHOOL

WINNETKA, IL · 2025

GENERAL

$17,500

HYDE PARK DAY SCHOOL

CHICAGO, IL · 2025

GENERAL

$15,000

PATHWAYS EARLY EDUCATION CENTER

NAPLES, FL · 2025

GENERAL

$10,000

Showing up to 5 of 90 total records — full history available with membership.

Officers & Directors

TRUSTEE Kathryn K Rieger

TRUSTEE Kimberly Frezados

TRUSTEE Michael Masius

Officer compensation and complete director data available with membership.

Top Grant Purposes

GENERAL

$470,350 87 grants

PILOT LIGHT EVENT

$6,200 3 grants

Financial Trends

Year	Revenue	Expenses	Assets
2025	$201K	$254K	$2.9M
2024	$295K	$258K	$2.9M
2023	$49K	$93K	$2.9M
2022	—	—	—

Between 2023 and 2025, reported annual revenue grew from $49K to $201K (+313%), with total assets most recently reported at $2.9M.

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

Grant Geography

Grants from this foundation were reported to recipients in CT, FL, ID, IL, MO, OH, and 2 other states.

CTFLIDILMOOHVAWI

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

See the full picture for THE FREZADOS MASIUS RIEGER FOUNDATION

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