Private Foundation

BONSEN FOUNDATION

BONSEN FOUNDATION, of CAMBRIDGE, MA, is a Private Foundation tracked in Imperigo's IRS 990 database. The 2024 filing shows $116K in revenue, $410K in expenses, $4.5M in total assets. IRS filings disclose 27 grants awarded by this foundation, totaling roughly $1.6M.

EIN: 824380106 CAMBRIDGE, MA Latest filing: 2024

Total Revenue$116K

Total Expenses$410K

Total Assets$4.5M

Grants Given27

Grant Total$1.6M

Filing Years2020–2024

Sample Grants Given

MASSACHUSETTS INSTITUTE OF TECHNOLO

CAMBRIDGE, MA · 2024

TO FURTHER DONEE ORGANIZATION'S EXEMPT PURPOSE

$330,000

MASSACHUSETTS INSTITUTE OF TECHNOLO

CAMBRIDGE, MA · 2023

TO FURTHER DONEE ORGANIZATION'S EXEMPT PURPOSE

$250,000

MASSACHUSETTS INSTITUTE OF TECHNOLO

CAMBRIDGE, MA · 2022

TO FURTHER DONEE ORGANIZATION'S EXEMPT PURPOSE

$550,000

MASSACHUSETTS INSTITUTE OF TECHNOLO

CAMBRIDGE, MA · 2020

TO FURTHER DONEE ORGANIZATION'S EXEMPT PURPOSE

$250,000

JEEON LLC

2020

TO SUPPORT ACCESS TO AFFORDABLE HEALTHCARE

$5,000

Showing up to 5 of 27 total records — full history available with membership.

Officers & Directors

President Joost P Bonsen

Officer compensation and complete director data available with membership.

Top Grant Purposes

TO FURTHER DONEE ORGANIZATION'S EXEMPT PURPOSE

$1,570,000 23 grants

TO PROVIDE FUNDING FOR SCIENCE DEMONSTRATIONS

$5,000 1 grant

TO SUPPORT ACCESS TO AFFORDABLE HEALTHCARE

$5,000 1 grant

TO SUPPORT IMPROVING ACCESS TO SUSTAINABLE ENERGY

$5,000 1 grant

TO SUPPORT SOCIAL DEVELOPMENT PROGRAMS

$5,000 1 grant

Financial Trends

Year	Revenue	Expenses	Assets
2024	$116K	$410K	$4.5M
2023	$117K	$268K	$4.7M
2022	$84K	$635K	$5.0M
2021	$377K	$118K	$5.6M
2020	$890K	$406K	$5.4M

Between 2020 and 2024, reported annual revenue declined from $890K to $116K (-87%), with total assets most recently reported at $4.5M.

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, GA, MA, MD, NJ, and 3 other states.

CADCGAMAMDNJNYORUT

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

See the full picture for BONSEN FOUNDATION

Complete financials, all 27 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