Private Foundation

THE SIMSMAES FOUNDATION INC

THE SIMSMAES FOUNDATION INC, of BOSTON, MA, is a Private Foundation tracked in Imperigo's IRS 990 database. The 2025 filing shows $306K in revenue, $1.7M in expenses, $34.1M in total assets. IRS filings disclose 384 grants awarded by this foundation, totaling roughly $10.4M.

EIN: 680575207 BOSTON, MA Private Grantmaking Foundations NTEE: T20 Latest filing: 2025
Total Revenue$306K
Total Expenses$1.7M
Total Assets$34.1M
Grants Given384
Grant Total$10.4M
Filing Years2021–2025

Sample Grants Given

MASSACHUSETTS INSTITUTE OF TECHNOLOGY
CAMBRIDGE, MA · 2025
GENERAL PURPOSES
$1,049,960
DONOR ADVISED CHARITABLE GIVING INC (FORMERLY SCHWAB CHARITABLE FUND)
SAN FRANCISCO, CA · 2025
GENERAL PURPOSES
$555,000
TRUSTEES OF TUFTS COLLEGE (DBA TUFTS UNIVERSITY)
SOMERVILLE, MA · 2025
GENERAL PURPOSES
$10,000
350 ORG
CAMBRIDGE, MA · 2025
GENERAL PURPOSES
$3,000
DANA FARBER CANCER INSTITUTE
BOSTON, MA · 2025
GENERAL PURPOSES
$3,000

Showing up to 5 of 384 total records — full history available with membership.

Officers & Directors

PRESIDENT/CLERK/DIRECTOR Karl Sims
ASSISTANT CLERK M Molly Kim
TREASURER/DIRECTOR Patricia Maes

Officer compensation and complete director data available with membership.

Top Grant Purposes

GENERAL PURPOSES
$10,418,473 384 grants

Financial Trends

Year Revenue Expenses Assets
2025 $306K $1.7M $34.1M
2024 $268K $1.5M $33.7M
2023 $922K $1.4M $33.1M
2022 $229K $1.6M $23.7M
2021 $88K $1.2M $34.7M

Between 2021 and 2025, reported annual revenue grew from $88K to $306K (+247%), with total assets most recently reported at $34.1M.

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

Grant Geography

Grants from this foundation were reported to recipients in CA, DC, MA, MD, ME, NC, and 3 other states.

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

See the full picture for THE SIMSMAES FOUNDATION INC

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