Private Foundation

THE WILLIAM C AND SUSAN S MARINER PRIVATE FOUNDATION INC

Based in OCEAN CITY, MD, THE WILLIAM C AND SUSAN S MARINER PRIVATE FOUNDATION INC operates as a Private Foundation. The organization reported $860K in revenue, $12K in expenses, $5.8M in total assets for fiscal year 2025. Imperigo tracks 12 reported grants from this foundation totaling approximately $64K.

EIN: 471925405 OCEAN CITY, MD Latest filing: 2025

Total Revenue$860K

Total Expenses$12K

Total Assets$5.8M

Grants Given12

Grant Total$64K

Filing Years2021–2025

Sample Grants Given

OLD SALEM INC-MESDA

WINSTON SALEM, NC · 2024

SUMMER INSTITUTE

$6,000

THE DECORATIVE ARTS TRUST

MEDIA, PA · 2024

SUMMER INSTITUTE

$6,000

THE DECORATIVE ARTS TRUST

MEDIA, PA · 2023

SUMMER INSTITUTE

$6,000

OLD SALEM INC-MESDA

WINSTON SALEM, NC · 2023

SUMMER INSTITUTE

$6,000

OLD SALEM INC-MESDA

WINSTON SALEM, NC · 2022

SUMMER INSTITUTE

$5,000

Showing up to 5 of 12 total records — full history available with membership.

Officers & Directors

V.P./SECRETA Susan S Mariner

PRES/TREAS William C Mariner

Officer compensation and complete director data available with membership.

Top Grant Purposes

SUMMER INSTITUTE

$64,000 12 grants

Financial Trends

Year	Revenue	Expenses	Assets
2025	$860K	$12K	$5.8M
2024	$442K	$12K	$5.0M
2023	$3.2M	$10K	$4.5M
2022	$222K	$10K	$1.4M
2021	$645K	$10K	$1.2M

Between 2021 and 2025, reported annual revenue grew from $645K to $860K (+33%), with total assets most recently reported at $5.8M.

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

Grant Geography

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

NCPA

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

See the full picture for THE WILLIAM C AND SUSAN S MARINER PRIVATE FOUNDATION INC

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