Private Foundation

MAD RIVER FOUNDATION

Based in STAMFORD, CT, MAD RIVER FOUNDATION operates as a Private Foundation. The organization reported $155K in revenue, $149K in expenses, $871K in total assets for fiscal year 2025. Imperigo tracks 5 reported grants from this foundation totaling approximately $543K.

EIN: 136097034 STAMFORD, CT Latest filing: 2025

Total Revenue$155K

Total Expenses$149K

Total Assets$871K

Grants Given5

Grant Total$543K

Filing Years2021–2025

Sample Grants Given

VARIOUS - SEE SCHEDULES ATTACHED

STAMFORD, CT · 2025

SEE ATTACHED

$122,000

VARIOUS - SEE SCHEDULES ATTACHED

STAMFORD, CT · 2024

SEE ATTACHED

$100,000

VARIOUS - SEE SCHEDULES ATTACHED

STAMFORD, CT · 2023

SEE ATTACHED

$93,000

VARIOUS - SEE SCHEDULES ATTACHED

STAMFORD, CT · 2022

SEE ATTACHED

$120,000

VARIOUS - SEE SCHEDULES ATTACHED

STAMFORD, CT · 2021

SEE ATTACHED

$108,000

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

Officers & Directors

PRESIDENT Caroline Spencer

SECRETARY/TREASURER Godfrey A Rockefeller Jr

VICE PRESIDENT Parker B Rockefeller

Officer compensation and complete director data available with membership.

Top Grant Purposes

SEE ATTACHED

$543,000 5 grants

Financial Trends

Year	Revenue	Expenses	Assets
2025	$155K	$149K	$871K
2024	$190K	$122K	$865K
2023	$46K	$112K	$798K
2022	$54K	$142K	$865K
2021	$116K	$133K	$952K

Between 2021 and 2025, reported annual revenue grew from $116K to $155K (+34%), with total assets most recently reported at $871K.

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

Grant Geography

Grants from this foundation were reported to recipients in CT.

CT

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

See the full picture for MAD RIVER FOUNDATION

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