Seattle Children's Hospital (DBA Friends of Costco Guild)
The friends of costco guild was founded in 1988 to support seattle children's hospital (a 501(c)(3) tax-exempt hospital) by raising awareness and funds for the uncompensated care program, helping children receive the best care regardless of ability to pay.
Seattle Children's Hospital (DBA Friends of Costco Guild) at a glance
In short: Seattle Children's Hospital (DBA Friends of Costco Guild) gave $14.2M across 4 grants in 2025 (avg $3.5M), mostly in Washington. Source: 2025 IRS Form 990.
- Annual giving (2025)
- $14,175,144
- +10.4% vs 2024
- Grants made (2025)
- 4
- +33.3% vs 2024
- Average grant
- $3,543,786
- -17.2% vs 2024
- Median grant
- $1,012,194
- Total assets
- $301,809
- +72.8% 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 Seattle Children's Hospital (DBA Friends of Costco Guild) funds
How this funder distributes its grants
Top Recipients
Top recipient in 2025
The largest 2025 recipient was Seattle Children's Guild Association ($14.2M across 4 grants).
Grant Size Distribution
20 grants across all recorded years
The most common grant size was under $50K: 10 grants of 20 (50%).
Geographic Focus
Where this funder awards grants
Grant Distribution by State
Share of 2025 grant dollars across all 4 itemized grants.
States
Cities
How Seattle Children's Hospital (DBA Friends of Costco Guild) gives
- Giving grew 41% from 2022 to 2025. 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 $7.9M (2020) to $14.2M (2025). In 2025 it made 4 grants totaling $14.2M.
Grants by year
Grant recipients and amounts by year
| Recipient | Purpose | Amount |
|---|---|---|
| Seattle Children's Guild Association Seattle, WA | Uncompensated Care Fund | $12,140,161 |
| Seattle Children's Guild Association Seattle, WA | Cancer Clinical Trials Uncompensated Care Fund | $2,000,000 |
| Seattle Children's Guild Association Seattle, WA | Knapp Family Endowment for Bipolar and Schizophrenia Research | $24,387 |
| Seattle Children's Guild Association Seattle, WA | Research Discovery Fund | $10,596 |
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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 | $301,809 | $14,452,308 | $14,325,157 | $14,175,144 | 4 | $2,113 |
| 2024 | $174,658 | $12,958,051 | $12,977,556 | $12,845,372 | 3 | $1,428 |
| 2023 | $194,163 | $11,487,562 | $11,397,269 | $11,269,000 | 4 | $1,371 |
| 2022 | $103,870 | $10,159,499 | $10,237,218 | $10,066,750 | 5 | $1,177 |
| 2021 | $181,589 | $9,707,217 | $9,641,992 | $9,587,750 | 4 | $1,184 |
| 2020 | $116,364 | $7,918,702 | $7,948,503 | $7,900,000 | 2 | $1,318 |
| 2019 | $146,165 | $8,415,136 | $8,294,018 | $8,190,000 | 5 | $2,189 |
About Seattle Children's Hospital (DBA Friends of Costco Guild)
Based on IRS filings
Seattle Children's Hospital (DBA Friends of Costco Guild) is a public charity, based in Seattle, WA. IRS filing data is available from 2019 through 2025. As of 2025, the organization holds $302K in total assets. In 2025, it awarded 4 grants totaling $14.2M. Net investment income was $2K.
Leadership & Key People
Officers and directors from IRS filings
Seattle Children's Hospital (DBA Friends of Costco Guild) is led by Sarah Corwin, President on every filing since 2024; none of the 4 officers listed in 2025 report compensation.
Officers on the 2025 filing
Sarah Corwin
President
On filings since 2024
5 hrs/week
No compensation reported
Jan Sinegal
Golf Tournament Chair
New on the 2025 filing
2 hrs/week
No compensation reported
Caitlin Carter
Secretary
On filings since 2020
2 hrs/week
No compensation reported
Chantal Leblanc
Treasurer
On filings since 2020
1 hr/week
No compensation reported
Former officers (5)
- Former: Janet Sinegal (2019–2024) — Golf Tournament Chair
- Former: Debora Centioli (2021–2023) — President
- Former: Kendy Sasaki-Ross (2019–2021) — President
- Former: Joanne McKay (2019) — Treasurer
- Former: Susan Tapper (2019) — Secretary
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 Seattle Children's Hospital (DBA Friends of Costco Guild)
How much does Seattle Children's Hospital (DBA Friends of Costco Guild) give each year?
Seattle Children's Hospital (DBA Friends of Costco Guild) gave $14.2M across 4 grants in 2025, according to its 2025 IRS Form 990. In 2024 it gave $12.8M across 3 grants.
What is Seattle Children's Hospital (DBA Friends of Costco Guild)'s typical grant size?
Seattle Children's Hospital (DBA Friends of Costco Guild)'s median grant in 2025 was $1,012,194, and its average grant was $3,543,786, across 4 grants on its 2025 IRS Form 990.
Where does Seattle Children's Hospital (DBA Friends of Costco Guild) give grants?
Seattle Children's Hospital (DBA Friends of Costco Guild) gives mostly in Washington: 100% of the grant dollars itemized on its 2025 IRS Form 990 went to recipients there. The most frequent recipient cities were Seattle, WA (4 grants).
Does Seattle Children's Hospital (DBA Friends of Costco Guild) give general operating support?
Not in 2025: none of the 4 grants with a stated purpose on Seattle Children's Hospital (DBA Friends of Costco Guild)'s 2025 IRS Form 990 were described as general or operating support.
How large is Seattle Children's Hospital (DBA Friends of Costco Guild)?
Seattle Children's Hospital (DBA Friends of Costco Guild) reported $302K in total assets on its 2025 IRS Form 990. Its revenue that year was $14.5M.
What is Seattle Children's Hospital (DBA Friends of Costco Guild)'s EIN?
Seattle Children's Hospital (DBA Friends of Costco Guild)'s EIN (Employer Identification Number) is 94-3102280. 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 2020 (received by the IRS July 19, 2021)
- Updated Form 990 for fiscal year 2021 (received by the IRS August 11, 2022)
- Updated Form 990 for fiscal year 2022 (received by the IRS June 22, 2023)
- Updated Form 990 for fiscal year 2023 (received by the IRS July 10, 2024)
- Updated Form 990 for fiscal year 2024 (received by the IRS July 11, 2025)
- Added Form 990 for fiscal year 2019 (received by the IRS August 11, 2020)
- Added Form 990 for fiscal year 2025 (received by the IRS June 23, 2026)
- IRS filings on file for fiscal years 2020–2024
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