Private Foundation

THE GREATHOUSE FAMILY FOUNDATION

THE GREATHOUSE FAMILY FOUNDATION is a private foundation categorized as Private Foundation based in LOS ALTOS, CA. Its most recent IRS filing (2025) reports revenue of $1.2M, expenses of $1.0M, total assets of $19.2M. Imperigo tracks 123 reported grants from this foundation totaling approximately $3.7M.

EIN: 472508106 LOS ALTOS, CA Private Grantmaking Foundations NTEE: T20 Latest filing: 2025

Total Revenue$1.2M

Total Expenses$1.0M

Total Assets$19.2M

Grants Given123

Grant Total$3.7M

Filing Years2020–2025

Sample Grants Given

ACOUSTIC NEUROMA ASSN

ALPHARETTA, GA · 2025

MEDICAL RESEARCH FOR ACOUSTIC NEUROMA

$150,000

LUCILLE PACKARD DR CAMPEN

PALO ALTO, CA · 2025

NF1 RESEARCH

$137,500

STANFORD UNIV DR ASHLEY

PALO ALTO, CA · 2025

RESEARCH ARTIFICIAL ORGAN TRANSPLANTS

$100,000

STANFORD UNIV DR LEEPER

PALO ALTO, CA · 2025

CVD AND RELATION TO CANCER--RESEARCH

$87,500

STUDENTS RISING ABOVE

SAN FRENCISCO, CA · 2025

EDUCATION RESOURCES FOR FIRST GEN STUDENTS

$50,000

Showing up to 5 of 123 total records — full history available with membership.

Officers & Directors

EXEC DIRECTOR Jeff Greathouse

SECRETARY/TRUSTEE Kenneth Greathouse

PRESIDENT Susan Greathouse

Officer compensation and complete director data available with membership.

Top Grant Purposes

TO SUPPORT THE ONGOING RESEARCH RELATED TO THORACIC CANCER.

$760,000 8 grants

DR. CAMPEN - NF1 RESEARCH

$708,559 8 grants

UNRESTRICTED GRANT USED FOR GENERAL SUPPORT.

$325,000 9 grants

SUMMER RETREAT.

$200,000 5 grants

IN SUPPORT OF PILOT PROJECT - APPLIED ART. INTELL MATCH GRANT

$200,000 3 grants

Financial Trends

Year	Revenue	Expenses	Assets
2025	$1.2M	$1.0M	$19.2M
2024	$1.2M	$788K	$16.5M
2023	$1.4M	$831K	$13.5M
2022	$771K	$709K	$11.1M
2020	$2.2M	$532K	$11.8M

Between 2020 and 2025, reported annual revenue declined from $2.2M to $1.2M (-43%), with total assets most recently reported at $19.2M.

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, HI, KY, MA, and 2 other states.

CADCGAHIKYMANYWA

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

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Sample Grants Given

Officers & Directors

Top Grant Purposes

Financial Trends

Grant Geography

Similar Organizations in CA

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