Private Foundation

THE LOUIS FOUNDATION

THE LOUIS FOUNDATION, of CAMBRIDGE, MA, is a Private Foundation tracked in Imperigo's IRS 990 database. The 2025 filing shows $181K in revenue, $447K in expenses, $1.3M in total assets. IRS filings disclose 328 grants awarded by this foundation, totaling roughly $3.3M.

EIN: 426660492 CAMBRIDGE, MA Latest filing: 2025

Total Revenue$181K

Total Expenses$447K

Total Assets$1.3M

Grants Given328

Grant Total$3.3M

Filing Years2021–2025

Sample Grants Given

SEATTLE CHILDREN'S HOSPITAL

SEATTLE, WA · 2025

CHARITABLE

$333,333

JOHNS HOPKINS

BALTIMORE, MD · 2025

CHARITABLE

$29,000

BOSTON CHILDRENS HOSPITAL

BOSTON, MA · 2025

CHARITABLE

$25,000

EPIPHANY SCHOOL

BOSTON, MA · 2025

CHARITABLE

$20,000

VT PUBLIC

COLCHESTER, VT · 2025

CHARITABLE

$10,000

Showing up to 5 of 328 total records — full history available with membership.

Officers & Directors

TRUSTEE Langdon B Wheeler

TRUSTEE M Katherine Metcalfe

Officer compensation and complete director data available with membership.

Top Grant Purposes

CHARITABLE

$3,331,657 322 grants

CHARITBLE

$13,500 6 grants

Financial Trends

Year	Revenue	Expenses	Assets
2025	$181K	$447K	$1.3M
2024	$125K	$170K	$1.6M
2023	$126K	$823K	$1.6M
2022	$24K	$295K	$2.3M
2021	$200K	$383K	$2.6M

Between 2021 and 2025, reported annual revenue declined from $200K to $181K (-9%), 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, CT, DC, MA, MD, and 4 other states.

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

See the full picture for THE LOUIS FOUNDATION

Complete financials, all 328 grant records, officer compensation, year-over-year trend charts, a geographic grant map, and data exports — across 498,000+ organizations.

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