Mercer Island Schools Foundation
The Mercer Island Schools Foundations is a 501(C)(3) public service, non-profit organization dedicated to enhancing and improving the quality of education provided to all students of the Mercer Island School District by obtaining contributions for the public schools.
Mercer Island Schools Foundation at a glance
In short: Mercer Island Schools Foundation gave $953K across 1 grant in 2025 (avg $953K), mostly in Washington. Source: 2025 IRS Form 990.
- Annual giving (2025)
- $952,815
- +13.2% vs 2024
- Grants made (2025)
- 1
- +0.0% vs 2024
- Average grant
- $952,815
- +13.2% vs 2024
- Median grant
- $952,815
- Total assets
- $904,609
- +11.7% vs 2024
- Primary geography
- Washington (100% of itemized 2025 grant dollars)
- Latest 990 filing
- Form 990, 2025 View filing
Data from IRS Form 990, 2025; updated September 2026.
Who Mercer Island Schools Foundation funds
How this funder distributes its grants
Top Recipients
Top recipient in 2025
The largest 2025 recipient was Mercer Island School District ($953K).
Grant Size Distribution
5 grants across all recorded years
The most common grant size was in the $500K–1M range: 5 grants of 5 (100%).
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 Mercer Island Schools Foundation gives
- Giving held roughly steady from 2022 to 2025 (+18%). Method
From the foundation's IRS Form 990 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 $808K (2022) to $1.1M (2019). In 2025 it made 1 grant totaling $953K.
Grants by year
Grant recipients and amounts by year
| Recipient | Purpose | Amount |
|---|---|---|
| Mercer Island School District Merser Island, WA | Program Support | $952,815 |
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Financial History
Multi-year comparison from IRS filings
| Filing year | Total Assets | Revenue | Expenses | Grants paid | Grants | Net Investment Income |
|---|---|---|---|---|---|---|
| 2025 | $904,609 | $1,249,983 | $1,255,717 | $952,815 | 1 | $14,969 |
| 2024 | $809,964 | $981,475 | $1,138,258 | $841,517 | 1 | $21,526 |
| 2023 | $900,465 | $1,121,740 | $1,180,803 | $882,096 | 1 | $20,941 |
| 2022 | $1,177,249 | $1,078,736 | $1,076,894 | $808,379 | 1 | $755 |
| 2021 | $955,163 | $1,150,050 | $1,069,901 | $829,715 | 1 | $-527 |
| 2020 | $432,425 | $1,116,337 | $1,147,468 | $894,856 | 2 | $2,181 |
| 2019 | $492,105 | $1,219,097 | $1,366,527 | $1,060,141 | 1 | $2,630 |
About Mercer Island Schools Foundation
Based on IRS filings
Mercer Island Schools Foundation is a public charity, based in Mercer Island, WA. IRS filing data is available from 2019 through 2025. As of 2025, the organization holds $905K in total assets. In 2025, it awarded 1 grant totaling $953K. Net investment income was $15K.
Leadership & Key People
Officers and directors from IRS filings
Mercer Island Schools Foundation is led by Tamara Shoop, Executive Director since 2020 (on filings since 2019); 1 of 22 officers listed in 2025 is compensated.
Officers on the 2025 filing
Tamara Shoop
Executive Director
Interim Executive Director → Executive Director, 2020
On filings since 2019
35 hrs/week
$83K (2019) → $127K (2025)
Mara McCune
President
Director → President, 2025
On filings since 2024
5 hrs/week
No compensation reported
Susan Kim
Director
On filings since 2022
5 hrs/week
No compensation reported
Julie Hsieh
Director
On filings since 2023
5 hrs/week
No compensation reported
Kaarina AuFranc
Director
On filings since 2023
5 hrs/week
No compensation reported
Matt Richenburg
Director
On filings since 2023
5 hrs/week
No compensation reported
Meghan Banta
Director
Director → Co-President, 2024
Co-President → Director, 2025
On filings since 2023
5 hrs/week
No compensation reported
Shannon Stokke
Director
On filings since 2023
5 hrs/week
No compensation reported
Jacqueline Quasney
Director
On filings since 2024
5 hrs/week
No compensation reported
Karen Zehnder-Wood
Director
On filings since 2024
5 hrs/week
No compensation reported
Kim Swafford
Director
On filings since 2024
5 hrs/week
No compensation reported
Lori Hurl
Director
On filings since 2024
5 hrs/week
No compensation reported
Marna Metcalf
Director
On filings since 2024
5 hrs/week
No compensation reported
Yen-Ling Lee
Director
On filings since 2024
5 hrs/week
No compensation reported
Lindsey Wellmon
Director
New on the 2025 filing
5 hrs/week
No compensation reported
Lisa Lackland
Director
New on the 2025 filing
No compensation reported
Lisa Price
Director
New on the 2025 filing
5 hrs/week
No compensation reported
Ronald Tang
Director
New on the 2025 filing
5 hrs/week
No compensation reported
Ashley Sternberg
Co - Vice President
Director → Co - Vice President, 2025
On filings since 2020
5 hrs/week
No compensation reported
Ahisha Avant
Secretary
Director → Secretary, 2024
On filings since 2023
5 hrs/week
No compensation reported
Lisa Kalscheur
Co - Vice President
Director → Co-President, 2024
Co-President → Co - Vice President, 2025
On filings since 2023
5 hrs/week
No compensation reported
Melissa Cahoon
Treasurer
Director → Treasurer, 2025
On filings since 2024
5 hrs/week
No compensation reported
Former officers (39)
- Former: Greta Stednick (2019–2024) — Director
- Former: Daniel Odievich (2020–2024) — Treasurer
- Former: Jill Ashton (2021–2024) — Director
- Former: Ruby Azeem (2021–2024) — Director
- Former: Carin Parcel (2023–2024) — Director
- Former: Galit Gilad-Talby (2023–2024) — Director
- Former: Robb Monkman (2023–2024) — Director
- Former: Samantha Rubenfield (2023–2024) — Director
- Former: Will Quantz (2024) — Director
- Former: Michelle Dumler (2019–2023) — President
- Former: Sheri Blumenthal (2019–2023) — Vice President
- Former: Tyson Farmer (2019–2023) — Director
- Former: Jeff Miller (2021–2023) — Director
- Former: Tiffany Topol (2021–2023) — Director
- Former: Chris Sherland (2023) — Director
- Former: Andrea Chatalas (2019–2022) — Director
- Former: Andrea Dickstein (2019–2022) — Director
- Former: Dawn Dunn (2019–2022) — Secretary
- Former: Fatema Burkey (2019–2022) — President
- Former: Susan Szafir (2019–2022) — Director
- Former: Kristi Kile (2021–2022) — Director
- Former: Celine Realini (2022) — Director
- Former: Julie King Hately (2019–2021) — Director
- Former: Laurie Givan (2019–2021) — Director
- Former: Nina Smith (2019–2021) — Director
- Former: Peter Goodman (2019–2021) — Treasurer
- Former: Anu Vege (2020–2021) — Director
- Former: Michele Agosti (2021) — Director
- Former: Carmen Jacobs (2019–2020) — Director
- Former: Heidi Singh (2019–2020) — Co-President
- Former: Linda Chen (2019–2020) — Treasurer
- Former: Christina Riffle (2019) — President
- Former: Cliff Sharples (2019) — Director
- Former: Gordon McGrath (2019) — Director
- Former: Heather Emery (2019) — Director
- Former: Jerry Kavesh (2019) — Director
- Former: Kevin Chou (2019) — Director
- Former: Nancy Maccormack (2019) — Director
- Former: Penny Yantis (2019) — Executive Director
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 $127K, to Tamara Shoop (Executive Dir.).
Frequently asked questions about Mercer Island Schools Foundation
How much does Mercer Island Schools Foundation give each year?
Mercer Island Schools Foundation gave $953K across 1 grant in 2025, according to its 2025 IRS Form 990. In 2024 it gave $842K across 1 grant.
How large is Mercer Island Schools Foundation?
Mercer Island Schools Foundation reported $905K in total assets on its 2025 IRS Form 990. Its revenue that year was $1.2M.
Where does Mercer Island Schools Foundation operate?
Mercer Island Schools Foundation has awarded grants in Washington.
What is Mercer Island Schools Foundation's EIN?
Mercer Island Schools Foundation's EIN (Employer Identification Number) is 91-1143444. IRS Form 990 filing data is available on this page for 2019–2025.
Data last updated September 2026. Sourced from IRS Form 990 filings.
Data update history
(8)
When this profile's IRS filing data changed on Grantable
- Updated Form 990 for fiscal year 2021 (received by the IRS June 15, 2022)
- Updated Form 990 for fiscal year 2022 (received by the IRS May 24, 2023)
- Updated Form 990 for fiscal year 2023 (received by the IRS April 4, 2024)
- Updated Form 990 for fiscal year 2024 (received by the IRS July 2, 2025)
- Added Form 990 for fiscal year 2019 (received by the IRS May 21, 2020)
- Updated Form 990 for fiscal year 2020 (received by the IRS May 5, 2021)
- Added Form 990 for fiscal year 2025 (received by the IRS August 19, 2026)
- IRS filings on file for fiscal years 2020–2024
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Mercer Island Schools Foundation down — hundreds of funders to go?