Private Foundation

SANDSTONE FOUNDATION

Based in MAYFIELD HTS, OH, SANDSTONE FOUNDATION operates as a Private Foundation. The organization reported $600K in revenue, $204K in expenses, $1.3M in total assets for fiscal year 2025. Imperigo tracks 179 reported grants from this foundation totaling approximately $2.1M.

EIN: 472442291 MAYFIELD HTS, OH Latest filing: 2025

Total Revenue$600K

Total Expenses$204K

Total Assets$1.3M

Grants Given179

Grant Total$2.1M

Filing Years2021–2025

Sample Grants Given

POSITIVE EDUCATION PROGRAM

CLEVELAND, OH · 2025

GENERAL

$37,516

UCLA FOUNDATION

SANTA MONICA, CA · 2025

GENERAL

$31,500

THE BAIL PROJECT

VENICE, CA · 2025

GENERAL

$30,000

A PLACE FOR ME

CLEVELAND, OH · 2025

GENERAL

$25,000

ACLU OF OHIO

CLEVELAND, OH · 2025

GENERAL

$20,000

Showing up to 5 of 179 total records — full history available with membership.

Officers & Directors

DIRECTOR Alycia P Martens

DIRECTOR Holley Fowler Martens

DIRECTOR Robert Martens

Officer compensation and complete director data available with membership.

Top Grant Purposes

GENERAL

$1,571,512 156 grants

GENERAL SUPPORT

$217,000 7 grants

GENERAL SUPPORT AND EDUCATION

$61,000 1 grant

GENERAL SUPPORTGENERAL SUPPORT

$35,000 3 grants

MAYOR'S COURTS WORK

$35,000 2 grants

Financial Trends

Year	Revenue	Expenses	Assets
2025	$600K	$204K	$1.3M
2024	$228K	$92K	$902K
2023	$219K	$250K	$768K
2022	$119K	$318K	$797K
2021	$611K	$236K	$997K

Between 2021 and 2025, reported annual revenue held roughly steady at around $600K, with total assets most recently reported at $1.3M.

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, MA, MN, NY, and 2 other states.

CACODCMAMNNYOHPA

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

See the full picture for SANDSTONE FOUNDATION

Complete financials, all 179 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