Private Foundation

HERBERT R MAYER AND JEANNE C MAYER FOUNDATION

HERBERT R MAYER AND JEANNE C MAYER FOUNDATION, of AGOURA HILLS, CA, is a Private Foundation tracked in Imperigo's IRS 990 database. The 2025 filing shows $1.4M in revenue, $2.7M in expenses, $33.8M in total assets. IRS filings disclose 204 grants awarded by this foundation, totaling roughly $12.1M.

EIN: 954589085 AGOURA HILLS, CA Private Independent Foundations NTEE: T22 Latest filing: 2025

Total Revenue$1.4M

Total Expenses$2.7M

Total Assets$33.8M

Grants Given204

Grant Total$12.1M

Filing Years2021–2025

Sample Grants Given

GREENLINE HOUSING FOUNDATION

SIERRA MADRE, CA · 2024

UNRESTRICTED OPERATING SUPPORT

$150,000

DOOR OF HOPE

PASADENA, CA · 2024

UNRESTRICTED OPERATING SUPPORT

$150,000

THE CLEVELAND CLINIC FOUNDATION

CLEVELAND, OH · 2024

ASTROCYTIC REGULATION OF NEUROINFLAMMATION DURING MS & EPILEPSY RESEARCH

$145,000

FIRST DESCENTS

DENVER, CO · 2024

JEANNE C MAYER REMEMBERANCE RELFECTION GARDEN & MS FOCUSED PROGRAMMING

$125,000

TISCH MULTIPLE SCLEROSIS RESEARCH CENTER OF NEW YORK INC

NEW YORK, NY · 2024

IPSC TECHNOLOGY TO GENERATE ORGANOID MODELS TO STUDY COGNITIVE IMPAIRMENT

$125,000

Showing up to 5 of 204 total records — full history available with membership.

Officers & Directors

DIRECTOR Brooke Cutler

DIRECTOR Eric Marton

TREASURER/DIRECTOR Katelyn M Kalter

DIRECTOR Niel Widerschein

PRESIDENT/DIRECTOR Sarah J Kalter

Officer compensation and complete director data available with membership.

Top Grant Purposes

ONGOING OPERATIONS

$2,222,500 41 grants

PRIDE OF THE DESERT PROJECT

$2,000,001 3 grants

JEANNE C MAYER ENDOWED PROFESSORSHIP IN NEUROLOGY

$1,149,999 3 grants

UNRESTRICTED OPERATING SUPPORT

$635,000 15 grants

NEW CASE MANAGER

$310,000 5 grants

Financial Trends

Year	Revenue	Expenses	Assets
2025	$1.4M	$2.7M	$33.8M
2024	$1.0M	$2.6M	$35.1M
2023	$-153K	$2.5M	$36.7M
2022	$1.6M	$3.0M	$39.4M
2021	$4.5M	$3.0M	$40.7M

Between 2021 and 2025, reported annual revenue declined from $4.5M to $1.4M (-70%), with total assets most recently reported at $33.8M.

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, DC, FL, IN, MA, and 4 other states.

CACODCFLINMAMDMNMTNJ

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

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

Sample Grants Given

Officers & Directors

Top Grant Purposes

Financial Trends

Grant Geography

Similar Organizations in CA

See the full picture for HERBERT R MAYER AND JEANNE C MAYER FOUNDATION