Sandstone Foundation
Sandstone Foundation is a private foundation based in Mayfield Heights, Ohio. Its 2025 filing lists grants to charitable organizations in Ohio and California, including organizations working in youth support, higher education, bail assistance, and the arts.
Sandstone Foundation at a glance
In short: Sandstone Foundation gave $199K across 26 grants in 2025 (avg $8K), mostly in Ohio. 42% of 2025 grantees were new. Source: 2025 IRS Form 990-PF.
- Annual giving (2025)
- $198,503
- +132.3% vs 2024
- Grants made (2025)
- 26
- +44.4% vs 2024
- Average grant
- $7,635
- +60.8% vs 2024
- Median grant
- $2,779
- Total assets
- $1,297,208
- +43.8% vs 2024
- New grantees (estimate)
- 42% first-time grantees (11 of 26, 2025)
- Primary geography
- Ohio (65% of itemized 2025 grant dollars)
- Latest 990 filing
- Form 990-PF, 2025 View filing
Data from IRS Form 990-PF, 2025; updated October 2026. New grantees are estimated by matching recipient names across years (methodology).
How to apply to Sandstone Foundation
- Accepts unsolicited proposals
- No
- How to Apply
-
The foundation makes contributions only to preselected charitable organizations and does not accept unsolicited requests for funds.
- Contact
Mailing address: Co 5900 Landerbrook Drive 200, Mayfield Hts, OH 44124
Phone: (440) 440-0460
Website: https://sandstonefoundation.co.uk
Application details from Grantable's research on the foundation's public materials; confirm on its website before applying.
Who Sandstone Foundation funds
How this funder distributes its grants
Top Recipients
Top 10 recipients in 2025
The largest 2025 recipient was Positive Education Program ($38K). Together the top 10 received $177K.
Grant Size Distribution
119 grants across all recorded years
The most common grant size was under $50K: 116 grants of 119 (97%).
Geographic Focus
Where this funder awards grants
In 2025, 65% of grant dollars went to recipients in Ohio and 35% to recipients in California.
Grant Distribution by State
Share of 2025 grant dollars across all 26 itemized grants.
Cities
Is Sandstone Foundation open to new grantees?
42%
first-time grantees, 2025
In 2025, 11 of 26 grantees (42%) were first-time recipients. First grants averaged $5K; repeat grants $9K. How we count
Medians: $2K first-time, $3K repeat.
- 42% of 2025 grantees were also funded in 2024. Method
- Giving fell 36% from 2022 to 2025. Method
- In 2025 it paid out 440% of its IRS minimum distribution (the 5% rule). Method
Estimate from itemized grant lists in IRS Form 990-PF filings (2019–2025). Recipient names are matched across years, so a renamed or misspelled grantee can look new; grants to individuals are left out. Methodology.
Giving History
Giving Over Time
Total grant dollars and number of grants per year
From 2019 to 2025, annual grant giving ranged from $85K (2024) to $310K (2022). In 2025 it made 26 grants totaling $199K.
Grants by year
Grant recipients and amounts by year
| Recipient | Purpose | Amount |
|---|---|---|
| Positive Education Program Cleveland, OH | General | $37,516 |
| UCLA Foundation Santa Monica, CA | General | $31,500 |
| The Bail Project Venice, CA | General | $30,000 |
| A Place for ME Cleveland, OH | General | $25,000 |
| ACLU of Ohio Cleveland, OH | General | $20,000 |
| Museum of Contemporary Art (Moca) Cleveland, OH | General | $7,500 |
| Sisters of Notre Dame Chardon, OH | General | $7,500 |
| Team Seneca Navy Cleveland, OH | General | $7,500 |
| Cleveland Playhouse Cleveland, OH | General | $5,000 |
| The Cleveland Foundation Cleveland, OH | General | $5,000 |
Ready to take the next step with Sandstone Foundation?
Financial History
Multi-year comparison from IRS filings
| Filing year | Total Assets | Revenue | Expenses | Grants paid | Grants | Qualifying Distributions | Net Investment Income | Distributable Amount |
|---|---|---|---|---|---|---|---|---|
| 2025 | $1,297,208 | $599,543 | $204,277 | $198,503 | 26 | $198,503 | $29,429 | $45,145 |
| 2024 | $901,942 | $228,279 | $92,016 | $85,448 | 18 | $85,448 | $25,854 | $45,169 |
| 2023 | $767,711 | $218,821 | $249,834 | $245,454 | 24 | $245,454 | $17,496 | $32,877 |
| 2022 | $797,427 | $119,270 | $318,339 | $309,936 | 26 | $309,936 | $17,124 | $39,430 |
| 2021 | $997,289 | $611,064 | $236,106 | $229,597 | 25 | $229,597 | $207,911 | $40,436 |
| 2020 | $620,582 | $153,252 | $259,144 | $247,397 | 21 | — | $44,357 | $39,492 |
| 2019 | $726,573 | $83,415 | $309,364 | $293,177 | 20 | — | $71,268 | $57,720 |
Under IRS private-foundation payout rules, Sandstone Foundation reported a distributable amount of $45K for 2025 — the minimum it must pay out in qualifying distributions.
Research compiled by Grantable AI from public sources. Last updated September 2026.
Mission & Focus Areas
No mission statement for the foundation is provided. Its 2025 grantees include organizations with varied missions: Positive Education Program says it supports young people to overcome and thrive; UCLA Foundation describes itself as the giving, receiving, and investing arm of the UCLA campus; and The Bail Project says it pays bail for people in need and helps clients return to court. Other recipients include arts organizations and community-service organizations.
Grantmaking
In filing year 2025, the foundation reported 26 grants totaling $198,503. Grants ranged from $100 to $37,516, with a median grant of $2,778. Its largest reported grants were $37,516 to Positive Education Program, $31,500 to UCLA Foundation, $30,000 to The Bail Project, $25,000 to A Place for Me, and $20,000 to ACLU of Ohio. Each was listed for general purposes.
Leadership & Key People
Leadership team and compensation from IRS filings
The 2025 filing lists Robert Martens, Holley Fowler Martens, and Alycia P. Martens as directors.
Sandstone Foundation's 2025 filing lists 3 officers; none of the 3 officers listed in 2025 report compensation.
Officers on the 2025 filing
Alycia P. Martens
Director
On filings since 2019
5 hrs/week
No compensation reported
Holley Fowler Martens
Director
On filings since 2019
5 hrs/week
No compensation reported
Robert Martens
Director
On filings since 2019
5 hrs/week
No compensation reported
Data from IRS Form 990 filings, 2019–2025. "On filings since" is the earliest filing we hold that lists the person; hours are average hours per week as reported.
Frequently asked questions about Sandstone Foundation
How much does Sandstone Foundation give each year?
Sandstone Foundation gave $199K across 26 grants in 2025, according to its 2025 IRS Form 990-PF. In 2024 it gave $85K across 18 grants.
What is Sandstone Foundation's typical grant size?
Sandstone Foundation's median grant in 2025 was $2,779, and its average grant was $7,635, across 26 grants on its 2025 IRS Form 990-PF. Organizations receiving their first grant from Sandstone Foundation that year got $5K on average.
Where does Sandstone Foundation give grants?
Sandstone Foundation gives mostly in Ohio: 65% of the grant dollars itemized on its 2025 IRS Form 990-PF went to recipients there. The next largest state was California (35%). The most frequent recipient cities were Cleveland, OH (14 grants), Santa Monica, CA (2 grants) and San Diego, CA (2 grants).
Does Sandstone Foundation give general operating support?
Yes: 100% of Sandstone Foundation's 2025 grants with a stated purpose (26 of 26) were for general or operating support, per its 2025 IRS Form 990-PF.
Who are Sandstone Foundation's largest grantees?
Sandstone Foundation's largest 2025 grantees include Positive Education Program ($37,516), UCLA Foundation ($31,500) and The Bail Project ($30,000), according to its 2025 IRS Form 990-PF. Together they received 50% of its itemized 2025 grant dollars.
How large is Sandstone Foundation?
Sandstone Foundation reported $1.3M in total assets on its 2025 IRS Form 990-PF. It paid out $199K in qualifying distributions that year, against a required minimum of $45K (roughly 5% of its investment assets).
What does Sandstone Foundation fund?
No mission statement for the foundation is provided. See mission & focus areas ↑
How do I apply for a grant from Sandstone Foundation?
The foundation makes contributions only to preselected charitable organizations and does not accept unsolicited requests for funds. Eligibility and process details are in the grantmaking section of this profile. See how to apply ↑
What is Sandstone Foundation's EIN?
Sandstone Foundation's EIN (Employer Identification Number) is 47-2442291. IRS Form 990 filing data is available on this page for 2019–2025.
Does Sandstone Foundation accept unsolicited proposals?
No, according to Grantable's research on the foundation's published guidelines. See how to apply ↑
Data last updated October 2026. Sourced from IRS Form 990-PF filings. Research dossier generated September 2026.
Data update history
(8)
When this profile's IRS filing data changed on Grantable
- Updated Form 990-PF for fiscal year 2019 (received by the IRS June 8, 2020)
- Updated Form 990-PF for fiscal year 2020 (received by the IRS September 1, 2021)
- Updated Form 990-PF for fiscal year 2021 (received by the IRS May 10, 2022)
- Updated Form 990-PF for fiscal year 2022 (received by the IRS May 1, 2023)
- Updated Form 990-PF for fiscal year 2023 (received by the IRS May 24, 2024)
- Updated Form 990-PF for fiscal year 2024 (received by the IRS May 7, 2025)
- Added Form 990-PF for fiscal year 2025 (received by the IRS May 12, 2026)
- IRS filings on file for fiscal years 2019–2024
Explore Open Grants
Browse active grant opportunities in Sandstone Foundation's focus areas in our free grants database
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Cite this profile
Grantable. (2026). Sandstone Foundation funder profile. GrantGraph. Retrieved October 11, 2026, from https://grantable.co/funders/sandstone-foundation-morg_f75adaf6ea57410e9f70e2ab17897003
BibTeX
@misc{grantable_472442291_2026,
author = {{Grantable}},
title = {{Sandstone Foundation funder profile}},
howpublished = {GrantGraph},
year = {2026},
url = {https://grantable.co/funders/sandstone-foundation-morg_f75adaf6ea57410e9f70e2ab17897003},
note = {Accessed 2026-10-11. Data licensed CC BY 4.0}
}The figures on this page are open data under CC BY 4.0: reuse them with credit to Grantable and a link. Download the data.
Figures come from Sandstone Foundation's IRS filings (methodology). AI-written summaries, news items and logos are not covered by the open licence. Spot an error? Email hello@grantable.co.
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