The Sloan Foundation
The Sloan Foundation is a private foundation based in Seattle, Washington. In its 2024 filing, it reported one grant of $2,100,000 to a charitable organization for operations.
The Sloan Foundation at a glance
In short: The Sloan Foundation gave $2.1M across 1 grant in 2024 (avg $2.1M), mostly in Massachusetts. Source: 2024 IRS Form 990-PF.
- Annual giving (2024)
- $2,100,000
- +5.0% vs 2023
- Grants made (2024)
- 1
- +0.0% vs 2023
- Average grant
- $2,100,000
- +5.0% vs 2023
- Median grant
- $2,100,000
- Total assets
- $39,270,343
- +16.2% vs 2023
- Primary geography
- Massachusetts (100% of itemized 2024 grant dollars)
- Latest 990 filing
- Form 990-PF, 2024 View filing
Data from IRS Form 990-PF, 2024; updated October 2026.
How to apply to The Sloan Foundation
- Accepts unsolicited proposals
- No
- How to Apply
-
The foundation does not accept unsolicited requests for funds and states that it makes contributions only to preselected charitable organizations.
- Contact
Mailing address: 4734 25Th Ave Ne, Seattle, WA 98105
Phone: (206) 340-1818
Application details from Grantable's research on the foundation's public materials; confirm on its website before applying.
Who The Sloan Foundation funds
How this funder distributes its grants
Top Recipients
Top recipient in 2024
The largest 2024 recipient was The One Eight Fund ($2.1M).
Grant Size Distribution
52 grants across all recorded years
The most common grant size was under $50K: 36 grants of 52 (69%).
Geographic Focus
Where this funder awards grants
The foundation’s 2024 filing shows that 100% of its grant dollars went to a recipient in Massachusetts.
Grant Distribution by State
Share of the 2024 grant dollars on its one itemized grant.
Cities
How The Sloan Foundation gives
- Giving held roughly steady from 2021 to 2024 (−5%). Method
- In 2024 it paid out 129% of its IRS minimum distribution (the 5% rule). Method
From the foundation's IRS Form 990-PF filings. Methodology.
Giving History
Giving Over Time
Total grant dollars and number of grants per year
From 2020 to 2024, annual grant giving ranged from $1.8M (2020) to $3.9M (2022). In 2024 it made 1 grant totaling $2.1M.
Grants by year
Grant recipients and amounts by year
| Recipient | Purpose | Amount |
|---|---|---|
| The One Eight Fund Boston, MA | Operations | $2,100,000 |
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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 |
|---|---|---|---|---|---|---|---|---|
| 2024 | $39,270,343 | $5,799,037 | $2,214,424 | $2,100,000 | 1 | $2,107,697 | $4,631,279 | $1,631,993 |
| 2023 | $33,790,012 | $897,857 | $2,218,876 | $2,000,000 | 1 | $2,119,347 | $414,073 | $1,872,394 |
| 2022 | $34,791,332 | $5,583,998 | $4,135,205 | $3,936,250 | 4 | $3,984,271 | $5,060,126 | $1,767,218 |
| 2021 | $32,530,777 | $2,333,181 | $2,360,112 | $2,202,250 | 24 | $2,207,820 | $2,211,875 | $1,934,042 |
| 2020 | $34,444,025 | $774,282 | $1,946,398 | $1,802,250 | 22 | — | $1,492,511 | $1,825,959 |
Under IRS private-foundation payout rules, The Sloan Foundation reported a distributable amount of $1.6M for 2024 — the minimum it must pay out in qualifying distributions.
Research compiled by Grantable AI from public sources. Last updated October 2026.
Grantmaking
In 2024, the foundation reported one grant totaling $2,100,000. The grant went to THE ONE EIGHT FUND in Boston, Massachusetts, for operations.
Leadership & Key People
Leadership team and compensation from IRS filings
The 2024 filing lists Stuart M Sloan as president and Margarat E Weiland as secretary.
The Sloan Foundation is led by Stuart M. Sloan, President on every filing since 2020; none of the 2 officers listed in 2024 report compensation.
Officers on the 2024 filing
Stuart M. Sloan
President
On filings since 2020
1 hr/week
No compensation reported
Margarat E. Weiland
Secretary
On filings since 2020
1 hr/week
No compensation reported
Data from IRS Form 990 filings, 2020–2024. "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 The Sloan Foundation
How much does The Sloan Foundation give each year?
The Sloan Foundation gave $2.1M across 1 grant in 2024, according to its 2024 IRS Form 990-PF. In 2023 it gave $2.0M across 1 grant.
How large is The Sloan Foundation?
The Sloan Foundation reported $39.3M in total assets on its 2024 IRS Form 990-PF. It paid out $2.1M in qualifying distributions that year, against a required minimum of $1.6M (roughly 5% of its investment assets).
How do I apply for a grant from The Sloan Foundation?
The foundation does not accept unsolicited requests for funds and states that it makes contributions only to preselected charitable organizations. Eligibility and process details are in the grantmaking section of this profile. See how to apply ↑
Where does The Sloan Foundation make grants?
The foundation’s 2024 filing shows that 100% of its grant dollars went to a recipient in Massachusetts.
What is The Sloan Foundation's EIN?
The Sloan Foundation's EIN (Employer Identification Number) is 91-1799087. IRS Form 990 filing data is available on this page for 2020–2024.
Does The Sloan 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 October 2026.
Data update history
(1)
When this profile's IRS filing data changed on Grantable
- IRS filings on file for fiscal years 2020–2024
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Figures come from The Sloan 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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