Slater Family Research Trust
The Bainbridge Island Land Trust is a 501(c)(3) nonprofit conservation organization established in 1989 to conserve and steward the diverse natural environment of Bainbridge Island for the benefit of all. Working across the Puget Sound ecosystem, the organization protects wildlife habitat, freshwater streams, forests, wetlands, and shorelines through conservation easements and land acquisition. As an accredited member of the national Land Trust Alliance, the organization has protected over 1,400 acres of ecologically significant habitat since its founding and remains committed to preserving natural systems, biodiversity, and the Island's resilience in the face of development and climate pressures.
Slater Family Research Trust at a glance
In short: Slater Family Research Trust gave $101K across 1 grant in 2025 (avg $101K), mostly in Colorado. Source: 2025 IRS Form 990-PF.
- Annual giving (2025)
- $101,475
- +65.3% vs 2024
- Grants made (2025)
- 1
- -50.0% vs 2024
- Average grant
- $101,475
- +230.5% vs 2024
- Median grant
- $101,475
- Total assets
- $839,513
- -6.8% vs 2024
- Primary geography
- Colorado (100% of itemized 2025 grant dollars)
- Latest 990 filing
- Form 990-PF, 2025 View filing
Data from IRS Form 990-PF, 2025; updated October 2026.
Who Slater Family Research Trust funds
How this funder distributes its grants
Top Recipients
Top recipient in 2025
The largest 2025 recipient was Colorado School of Mines ($101K).
Grant Size Distribution
6 grants across all recorded years
The most common grant size was in the $50–100K range: 3 grants of 6 (50%).
Geographic Focus
Where this funder awards grants
Grant Distribution by State
Share of the 2025 grant dollars on its one itemized grant.
States
Cities
How Slater Family Research Trust gives
- Giving grew 91% from 2022 to 2025. Method
- In 2025 it paid out 113% 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 2019 to 2025, annual grant giving ranged from $5K (2020) to $101K (2025). In 2025 it made 1 grant totaling $101K.
Grants by year
Grant recipients and amounts by year
| Recipient | Purpose | Amount |
|---|---|---|
| Colorado School of Mines Golden, CO | Research Funding | $101,475 |
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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 | $839,513 | $126,869 | $171,753 | $101,475 | 1 | $182,600 | $122,825 | $161,389 |
| 2024 | $900,339 | $113,526 | $169,585 | $61,399 | 2 | $87,093 | $71,624 | $145,092 |
| 2023 | $916,500 | $123,950 | $97,429 | $75,714 | 1 | $83,564 | $77,847 | $109,117 |
| 2022 | $922,218 | $33,810 | $86,312 | $53,000 | 1 | $88,263 | $684 | $111,114 |
| 2021 | $1,009,703 | $49,733 | $181,705 | $50,301 | 1 | $75,714 | — | $75,714 |
| 2020 | $1,065,760 | $71,514 | $113,208 | $4,930 | 1 | — | $16,202 | $53,842 |
| 2019 | $1,085,333 | $62,710 | $133,938 | $37,311 | 1 | — | $16,186 | $50,103 |
Under IRS private-foundation payout rules, Slater Family Research Trust reported a distributable amount of $161K for 2025 — the minimum it must pay out in qualifying distributions.
About Slater Family Research Trust
Based on IRS filings
Slater Family Research Trust is a private foundation focused on Science & Technology, based in Bainbridge Island, WA. IRS filing data is available from 2019 through 2025. As of 2025, the organization holds $840K in total assets. In 2025, it awarded 1 grant totaling $101K. Net investment income was $123K.
Focus Areas
Leadership & Key People
Officers and directors from IRS filings
Slater Family Research Trust's 2025 filing lists 2 officers; all 2 officers listed in 2025 are compensated.
Officers on the 2025 filing
Christopher Slater
Trustee
On filings since 2019
1 hr/week
$16K (2019) → $32K (2025)
Diane Price
Trustee
On filings since 2019
1 hr/week
$24K (2019) → $49K (2025)
Former officers (2)
- Former: Patricia Ribbel (2019) — Trustee
- Former: Terry Parker (2019) — Trustee
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.
Compensation Overview
From 2025 IRS filing
The highest reported compensation on the 2025 filing was $49K, to Diane Price (Trustee). 2 officers or directors reported compensation on that filing.
Frequently asked questions about Slater Family Research Trust
How much does Slater Family Research Trust give each year?
Slater Family Research Trust gave $101K across 1 grant in 2025, according to its 2025 IRS Form 990-PF. In 2024 it gave $61K across 2 grants.
How large is Slater Family Research Trust?
Slater Family Research Trust reported $840K in total assets on its 2025 IRS Form 990-PF. It paid out $183K in qualifying distributions that year, against a required minimum of $161K (roughly 5% of its investment assets).
What is Slater Family Research Trust?
Slater Family Research Trust is a private foundation focused on Science & Technology, based in Bainbridge Island, WA. It holds $840K in total assets as of 2025.
Where does Slater Family Research Trust operate?
Slater Family Research Trust has awarded grants in California, Colorado, Montana.
What is Slater Family Research Trust's EIN?
Slater Family Research Trust's EIN (Employer Identification Number) is 68-0463204. IRS Form 990 filing data is available on this page for 2019–2025.
Data last updated October 2026. Sourced from IRS Form 990-PF filings.
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 March 12, 2020)
- Updated Form 990-PF for fiscal year 2020 (received by the IRS March 24, 2021)
- Updated Form 990-PF for fiscal year 2021 (received by the IRS March 24, 2022)
- Updated Form 990-PF for fiscal year 2022 (received by the IRS May 8, 2023)
- Updated Form 990-PF for fiscal year 2023 (received by the IRS May 9, 2024)
- Updated Form 990-PF for fiscal year 2024 (received by the IRS February 25, 2025)
- Updated Form 990-PF for fiscal year 2025 (received by the IRS April 1, 2026)
- IRS filings on file for fiscal years 2019–2025
Live grants for the work Slater Family Research Trust funds
Science & Technology Open opportunities, soonest deadline first.
Explore Open Grants
Browse active grant opportunities in Slater Family Research Trust's focus areas in our free grants database
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