Sibley-Saltonstall Charitable Foundation
The Sibley-Saltonstall Charitable Foundation is a private foundation based in Boston, Massachusetts. Its 2025 filing reports grants to charitable organizations working in areas including youth and family services, wildlife and habitat conservation, education, health, and land preservation.
Sibley-Saltonstall Charitable Foundation at a glance
In short: Sibley-Saltonstall Charitable Foundation gave $452K across 66 grants in 2025 (avg $7K), top state Maine. 11% of 2025 grantees were new. Source: 2025 IRS Form 990-PF.
- Annual giving (2025)
- $452,000
- +0.4% vs 2024
- Grants made (2025)
- 66
- +6.5% vs 2024
- Average grant
- $6,848
- -5.6% vs 2024
- Median grant
- $5,000
- Total assets
- $3,882,491
- -1.3% vs 2024
- New grantees (estimate)
- 11% first-time grantees (7 of 65, 2025)
- Primary geography
- Maine (37% 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 Sibley-Saltonstall Charitable Foundation
- Accepts unsolicited proposals
- No
- How to Apply
-
The foundation does not accept unsolicited requests for funds and makes contributions only to preselected charitable organizations.
- Contact
Mailing address: 45 School St 5Th Floor, Boston, MA 02108-3204
Phone: (617) 523-1635
Application details from Grantable's research on the foundation's public materials; confirm on its website before applying.
Who Sibley-Saltonstall Charitable Foundation funds
How this funder distributes its grants
Top Recipients
Top 10 recipients in 2025
The largest 2025 recipient was Cathedral Home for Children ($30K). Together the top 10 received $191K.
Grant Size Distribution
313 grants across all recorded years
The most common grant size was under $50K: 312 grants of 313 (100%).
Geographic Focus
Where this funder awards grants
In 2025, the largest shares of grant dollars went to organizations in Maine (37%) and Florida (27%), followed by Wyoming (7%), Arkansas (6%), and California (5%).
Grant Distribution by State
Share of 2025 grant dollars across all 66 itemized grants.
States
Cities
Is Sibley-Saltonstall Charitable Foundation open to new grantees?
11%
first-time grantees, 2025
In 2025, 7 of 65 grantees (11%) were first-time recipients. First grants averaged $6K; repeat grants $7K. How we count
Medians: $3K first-time, $5K repeat.
- 82% of 2025 grantees were also funded in 2024. Method
- Giving held roughly steady from 2022 to 2025 (−7%). Method
- In 2025 it paid out 109% of its IRS minimum distribution (the 5% rule). Method
Estimate from itemized grant lists in IRS Form 990-PF filings (2020–2025). 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 2020 to 2025, annual grant giving ranged from $317K (2020) to $484K (2022). In 2025 it made 66 grants totaling $452K.
Grants by year
Grant recipients and amounts by year
| Recipient | Purpose | Amount |
|---|---|---|
| Cathedral Home for Children Laramie, WY | Operating Fund | $30,000 |
| Maine Audubon Society Falmouth, ME | Unresctricted for General | $25,000 |
| Flagler College St Augustine, FL | Visual Arts Fund | $25,000 |
| Baptist Health Foundation Little Rock, AR | Operating Fund | $25,000 |
| Maine Medical Center Portland, ME | For Maine Tracks | $23,000 |
| Sarasota Memorial Foundation Sarasota, FL | Operating Fund | $15,000 |
| Nature Conservancy of Maine Brunswick, ME | Unrestricted for General | $14,000 |
| Gulf of Maine Research Portland, ME | Operating Fund | $14,000 |
| Schoodic Institute Winter Harbor, ME | Unrestricted for General | $10,000 |
| North Florida Land Trust Jacksonville, FL | Unrestricted for General | $10,000 |
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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 | $3,882,491 | $464,534 | $525,496 | $452,000 | 66 | $452,000 | $409,228 | $412,887 |
| 2024 | $3,933,453 | $834,999 | $507,767 | $450,000 | 62 | $450,000 | $779,616 | $396,289 |
| 2023 | $3,606,221 | $308,843 | $512,806 | $460,000 | 64 | $460,000 | $256,622 | $358,291 |
| 2022 | $3,810,184 | $297,070 | $544,131 | $484,000 | 63 | $484,000 | $245,138 | $362,277 |
| 2021 | $4,057,245 | $719,954 | $371,715 | $316,500 | 58 | $316,500 | $370,514 | $388,429 |
| 2020 | $3,708,900 | $497,046 | $367,513 | $316,500 | 57 | — | $147,764 | $305,084 |
Under IRS private-foundation payout rules, Sibley-Saltonstall Charitable Foundation reported a distributable amount of $413K 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 grants include support for organizations with a range of missions. For example, Cathedral Home for Children says it works to enrich the well-being of youth and families, while Maine Audubon Society says it works to conserve Maine’s wildlife and habitat through education, conservation, and action. North Florida Land Trust describes its mission as preserving the natural areas, historic resources, and working lands of North Florida.
Grantmaking
In 2025, the foundation reported 66 grants totaling $452,000. Grant amounts ranged from $1,000 to $30,000, with a median of $5,000. Among the largest grants were $30,000 to Cathedral Home for Children for its operating fund; $25,000 each to Maine Audubon Society, Flagler College, and Baptist Health Foundation; and $23,000 to Maine Medical Center for Maine Tracks. Other grants included $14,000 each to the Nature Conservancy of Maine and Gulf of Maine Research.
Leadership & Key People
Leadership team and compensation from IRS filings
The 2025 filing lists N Stewart Saltonstall and Edward A Hasler as trustees.
Sibley-Saltonstall Charitable Foundation's 2025 filing lists 2 officers; none of the 2 officers listed in 2025 report compensation.
Officers on the 2025 filing
Edward A. Hasler
Trustee
On filings since 2020
1 hr/week
No compensation reported
N. Stewart Saltonstall
Trustee
On filings since 2020
1 hr/week
No compensation reported
Data from IRS Form 990 filings, 2020–2025. "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 Sibley-Saltonstall Charitable Foundation
How much does Sibley-Saltonstall Charitable Foundation give each year?
Sibley-Saltonstall Charitable Foundation gave $452K across 66 grants in 2025, according to its 2025 IRS Form 990-PF. In 2024 it gave $450K across 62 grants.
What is Sibley-Saltonstall Charitable Foundation's typical grant size?
Sibley-Saltonstall Charitable Foundation's median grant in 2025 was $5,000, and its average grant was $6,848, across 66 grants on its 2025 IRS Form 990-PF. Organizations receiving their first grant from Sibley-Saltonstall Charitable Foundation that year got $6K on average.
Where does Sibley-Saltonstall Charitable Foundation give grants?
Sibley-Saltonstall Charitable Foundation's top state is Maine, with 37% of the grant dollars itemized on its 2025 IRS Form 990-PF. The next largest states were Florida (27%) and Wyoming (7%). The most frequent recipient cities were Portland, ME (8 grants), Sarasota, FL (5 grants), St Augustine, FL (3 grants) and Los Angeles, CA (3 grants).
Does Sibley-Saltonstall Charitable Foundation give general operating support?
Yes: 91% of Sibley-Saltonstall Charitable Foundation's 2025 grants with a stated purpose (60 of 66) were for general or operating support, per its 2025 IRS Form 990-PF.
Who are Sibley-Saltonstall Charitable Foundation's largest grantees?
Sibley-Saltonstall Charitable Foundation's largest 2025 grantees include Cathedral Home for Children ($30,000), Maine Audubon Society ($25,000) and Flagler College ($25,000), according to its 2025 IRS Form 990-PF. Together they received 18% of its itemized 2025 grant dollars.
How large is Sibley-Saltonstall Charitable Foundation?
Sibley-Saltonstall Charitable Foundation reported $3.9M in total assets on its 2025 IRS Form 990-PF. It paid out $452K in qualifying distributions that year, against a required minimum of $413K (roughly 5% of its investment assets).
What does Sibley-Saltonstall Charitable Foundation fund?
No mission statement for the foundation is provided. Its 2025 grants include support for organizations with a range of missions. See mission & focus areas ↑
How do I apply for a grant from Sibley-Saltonstall Charitable Foundation?
The foundation does not accept unsolicited requests for funds and makes contributions only to preselected charitable organizations. Eligibility and process details are in the grantmaking section of this profile. See how to apply ↑
What is Sibley-Saltonstall Charitable Foundation's EIN?
Sibley-Saltonstall Charitable Foundation's EIN (Employer Identification Number) is 22-3208197. IRS Form 990 filing data is available on this page for 2020–2025.
Does Sibley-Saltonstall Charitable 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
(6)
When this profile's IRS filing data changed on Grantable
- Updated Form 990-PF for fiscal year 2020 (received by the IRS July 14, 2021)
- Updated Form 990-PF for fiscal year 2021 (received by the IRS May 11, 2022)
- Updated Form 990-PF for fiscal year 2022 (received by the IRS May 11, 2023)
- Updated Form 990-PF for fiscal year 2023 (received by the IRS May 8, 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 4, 2026)
Explore Open Grants
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Cite this profile
Grantable. (2026). Sibley-Saltonstall Charitable Foundation funder profile. GrantGraph. Retrieved October 13, 2026, from https://grantable.co/funders/sibley-saltonstall-charitable-foundation-morg_f9be9b6f0eec46759852417415c42ae8
BibTeX
@misc{grantable_223208197_2026,
author = {{Grantable}},
title = {{Sibley-Saltonstall Charitable Foundation funder profile}},
howpublished = {GrantGraph},
year = {2026},
url = {https://grantable.co/funders/sibley-saltonstall-charitable-foundation-morg_f9be9b6f0eec46759852417415c42ae8},
note = {Accessed 2026-10-13. 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 Sibley-Saltonstall Charitable 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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