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SANDSTONE FOUNDATION

MAYFIELD HTS, OH EIN 47-2442291 Philanthropy & GrantmakingT22 501C3 PRIVATE FOUNDATION
$600K
Revenue
11
Filings
$2.0M
Total Grants
241
Grant Records
Latest Financial Summary
Fiscal Year Revenue Expenses Net Assets Contributions
FY 2025 $600K $204K $1.3M $567K
Full Financial History
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Key Officers
R
ROBERT MARTENS
DIRECTOR
H
HOLLEY FOWLER MARTENS
DIRECTOR
A
ALYCIA P MARTENS
DIRECTOR
Executive Compensation
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Top Grant Recipients (Teaser)
HATHAWAY BROWN $125K
HATHAWAY BROWN SCHOOL $100K
HATHAWAY BROWN $100K
241 total grants · $2.0M total giving
Complete Grants Database
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Filing History
990PF
FY 2025
Period ended 2025-12-31
IRS990PF
FY 2024
IRS990PF
FY 2023
990PF
FY 2022
990PF
FY 2021
Period ended 2021-12-31
IRS990PF
FY 2020
990PF
FY 2019
990PF
FY 2018
Period ended 2018-12-31
990PF
FY 2017
Period ended 2017-12-31
990PF
FY 2016
Period ended 2016-12-31
990PF
FY 2015
Period ended 2015-12-31
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