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Governance Register
US nonprofit · EIN 911351925 · Seattle, WAiSource and licenceOrganisation record IRS Exempt Organizations Business Master File (EIN 911351925) - NTEE activity code, address.Board and officers IRS Form 990 annual filings, Part VII (directors, trustees, officers, key employees), read year by year to observe tenure.Latest return IRS Form 990 series e-file data - 990 for the year to 31 August 2025: assets, liabilities, staff, website, telephone, pay, related organisations (Schedule R), grants paid (Schedule I).Finances by year IRS Form 990 e-file data - total revenue and total expenses by tax year.Renewal outlook Computed by Governance Register from the observed filing history and filed revenue (us-approach-v4-clean). Not a statement that the organisation is recruiting.Deductibility IRS Publication 78 data (code SOUNK), downloaded 18 October 2026.Licence US Federal Government public domain.How we handle data

Seattle Symphony Foundation's network

11 people17 organisationsi11 people and 17 organisations on this map.The large node is the subject of this page. Solid lines are what the register itself records (11). Violet dotted lines (28) are likely: the same full name sits on the current board of another organisation in the same register and region. Form 990 filings give names without a person identifier; SEC insider filings carry a CIK. It may be a different person.

The board

11 listediTime on the board is observed from the annual filings: the IRS files no appointment date, so the bar counts years from the first filing the person appears on - a lower bound, not a filed start date. Names are exactly as filed. The IRS publishes no person identifier, so this edition does not yet link a person across organisations in the tables. The network map shows same-name matches as likely links only, never as confirmed.Tenure and departures are observed across annual filings. Observed tenure is a lower bound - a member may have joined before the first year on record. The organisation reported 10 voting members of its governing body on its latest Form 990 Part VI, which matches the board listed here.
NameRole as filedSinceOn the board
Michael Slonski ChairBoard Chair2018
8 yrs
David TANDirector2018
8 yrs
Douglas JacksonDirector2024
2 yrs
Jon RosenDirector2022
4 yrs
Kathleen WrightVice Chair2018
8 yrs
LYN GrinsteinDirector2024
2 yrs
Muriel Van HousenCompany secretary2018
8 yrs
Nancy B Evans (also filed as Nancy Evans)Director Thru 01/242019
7 yrs
Rick WhiteDirector2018
8 yrs
Susan CoughlinDirector2024
2 yrs
Yuka ShimizuTreasurer2024
2 yrs
Under 5 years5 to 6 years6 years or moreShow all 11 →

Officers and senior leadership

4 listediNamed in Part VII as officers, key employees or highest-compensated staff - not board members, shown for completeness.
NameTitle as filedOn the filings
Cheronne WongVice President & CFO From 11/18since 2019
Krishna ThiagarajanPresident & CEOsince 2019
Maureen Campbell MelvilleVice-President & CFOsince 2018
Simon WoodsPresident & CEO Thru 01/182018

Pay and hours

year to 31 August 2025iFrom Part VII of the Form 990: compensation reported for each officer, director, trustee, key employee and highest-paid staff member, and the average hours a week they report. Most board members are unpaid; a blank means nothing was reported. Pay from related organisations is shown separately.
NameTitle as filedHours a weekPay from the organisationRelated organisationsOther
Michael SlonskiBoard Chair2$0
Kathleen WrightVice Chair2$0
Muriel van HousenSecretary2$0
Yuka ShimizuTreasurer2$0
Susan CoughlinDirector2$0
Lyn GrinsteinDirector2$0
Douglas JacksonDirector2$0
Jon RosenDirector2$0
David TanDirector2$0
Rick WhiteDirector2$0
Krishna ThiagarajanPresident & CEO1$0$430k$51k
Cheronne WongCFO & Benaroya Hall COO1$0$276k$48k
Maria YangCEO & VP of Development1$0$278k$40k

About

Legal name
Seattle Symphony Foundation
EIN
911351925
Address
Po Box 21906, Seattle, WA, 98111-3906
State
Washington
Mission
The primary purpose of the seattle symphony foundation is to aid and support the seattle symphony orchestra and benaroya hall music center endowments. (as filed on the Form 990)
Activity (NTEE)
A69I Arts, culture and humanities
IRS classification
501(c)03 (tax-exempt under section 501(c)(3) where shown)
Classified purpose
Arts, Culture & Humanities
Size band
8 (IRS master file code)
Formed
1986
Principal officer
Michael Slonski (as named on the Form 990)
IRS ruling date
1 April 1987
Status
Code 01 (unconditional exemption)
Form 990 filings on record
7, latest 2024
IRS Publication 78
SOUNK (contributions deductible)

Most connected

Related organisations (Schedule R)

Longest observed on the filings

≥8years on the filingsMichael Slonski
≥8years on the filingsDavid TAN
≥8years on the filingsKathleen Wright
≥8years on the filingsMuriel Van Housen

Latest return

year to 31 August 2025iFigures from the newest Form 990 or 990-EZ in the IRS e-file releases of 2025 and 2026, for the year ending 31 August 2025. US dollars, as filed.
Total assets
$50.3m
Total liabilities
$158k
Net assets or fund balances
$50.1m
Contributions and grants received
$1m
Program service revenue
$0
Grants and similar paid out
$3.1m
Employees
0
Volunteers
13

Filed finances

1 yeariTotals as filed on the IRS Form 990 (revenue and expenses), by tax year.
Tax yearTotal revenueTotal expensesSurplus or deficit
2023$4.9m$2.1m$2.8m

As filed on the IRS Form 990. US dollars.

Grants paid

2 listediFrom Schedule I of the Form 990: grants and assistance to organisations in the United States, largest first (up to 25). Schedule I is filed only by organisations that gave more than $5,000 to any one recipient.
RecipientPurposeAmount
Seattle Symphony OrchestraGeneral support$3.1m
B H Music CenterGeneral support$22k