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THE CHARLES AND ROBERTA KATZ

PALO ALTO, CAEIN: 91-2001806

Data sourced from IRS 990-PF public filings

Provides general funding to environmental and educational organizations, including Earth Justice and the Exploratorium, primarily in California.

Private_foundation Foundation

THE CHARLES AND ROBERTA KATZ has 51 grants on file funding 14 organizations. Giving increased from $267,000 in 2024 to $290,000 in 2025. Reported assets: $5,096,829.

Total Assets

$5,096,829

Grants (Last Year)

$290,000

Total Grants on File

51

Recipients Funded

14

Giving History

YearTotal GrantedGrants MadeAvg Grant
2025$290,00012$24,167
2024$267,00010$26,700
2023$278,00011$25,273
2022$279,5009$31,056
2021$267,0009$29,667

Top Grant Recipients

THE EXPLORATORIUM

SAN FRANCISCO, CA

$85,000 (2025)
EARTHJUSTICE

SAN FRANCISCO, CA

$85,000 (2023)
EARTHJUSTICE

SAN FRANCISCO, CA

$85,000 (2022)
EARTHJUSTICE

SAN FRANCISCO, CA

$85,000 (2024)
Unknown recipient
$85,000 (2025)
EARTHJUSTICE

SAN FRANCISCO, CA

$75,000 (2021)
THE EXPLORATORIUM

SAN FRANCISCO, CA

$75,000 (2021)
THE EXPLORATORIUM

SAN FRANCISCO, CA

$75,000 (2022)
THE EXPLORATORIUM

SAN FRANCISCO, CA

$75,000 (2023)
THE EXPLORATORIUM

SAN FRANCISCO, CA

$75,000 (2024)

Showing top 10 of 51 grants on file.

Officers & Trustees

From 2025 IRS 990-PF filing (data available for 10 filing years)

C

CHARLES J KATZ JR

PRESIDENT

R

ROBERTA B KATZ

FIRST VICE PRESIDENT

S

SARAH B KATZ

VICE PRESIDENT

S

SYDNEY M KATZ

VICE PRESIDENT

R

ROBERTA B KATZ

SECRETARY/TREASURER

IRS Filing History

THE CHARLES AND ROBERTA KATZ has IRS 990-PF filings on record for 10 years, spanning 2016 to 2025.

2025202420232022202120202019201820172016

Frequently Asked Questions

Other Foundations in California

All foundations in California

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    THE CHARLES AND ROBERTA KATZ (EIN: 91-2001806) - Grants & 990 Data | Signal990