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Governance Register
US nonprofit · EIN 910564971 · Seattle, WAiSource and licenceOrganisation record IRS Exempt Organizations Business Master File (EIN 910564971) - 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 30 June 2025: assets, liabilities, staff, website, telephone, pay, related organisations (Schedule R).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 PC), downloaded 18 October 2026.Licence US Federal Government public domain.How we handle data

Lakeside School's network

20 people13 organisationsi20 people and 13 organisations on this map.The large node is the subject of this page. Solid lines are what the register itself records (20). Violet dotted lines (15) 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

20 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 20 voting members of its governing body on its latest Form 990 Part VI, which matches the board listed here.
NameRole as filedSinceOn the board
Artemios Panos ChairImmediate Past Chair2019
7 yrs
Sean O'Donnell ChairChair2020
6 yrs
Brandon VaughanTrustee2019
7 yrs
Bridgette TaylorTrustee2019
7 yrs
Charlotte GuymanCompany secretary2023
3 yrs
David De La FuenteTrustee2021
5 yrs
David VictorTrustee2019
7 yrs
Eduardo PenalverTrustee2023
3 yrs
Gurdeep PallTrustee2024
2 yrs
Joanna BlackVice Chair2020
6 yrs
KAI BynumHead of School2024
2 yrs
Keith TraverseTrustee2023
3 yrs
Latosha SmithTrustee2025
1 yr
Lloyd D Frink (also filed as Lloyd Frink)Trustee2020
6 yrs
Mark KlebanoffTreasurer2019
7 yrs
Merrie WilliamsonTrustee2025
1 yr
Michael NachbarTrustee2021
5 yrs
Michelle Chang Chen (also filed as Michelle Chen)Trustee2022
4 yrs
Nate BenjaminTrustee2024
2 yrs
Sarah BartonTrustee2019
7 yrs
Under 5 years5 to 6 years6 years or moreShow all 20 →

Officers and senior leadership

19 listediNamed in Part VII as officers, key employees or highest-compensated staff - not board members, shown for completeness.
NameTitle as filedOn the filings
ARI WorthmanDirector of College Counselingsince 2019
Bernie NOEHead of Schoolsince 2019
Birage TandonChief Financial Officersince 2019
Booth KyleAssoc. Head of School/Dir. of Admissions & Fin Aid2019
Bryan SmithDirector of Experiential Educationsince 2021
Christopher HartleyDirector of Athleticssince 2019
Daiga GalinsDirector of Developmentsince 2019
Dan DawkinsDirector of Facilitiessince 2020
Elaine ChristensenMiddle School Directorsince 2019
Felicia WilksDirector Upper Schoolsince 2019
James BrittoDirector of Technologysince 2022
Jamie AsakaDirector of Student Supportsince 2019
Jennifer LamkinsTechnology Director2019
KAI BynumHead of School2023
Reem ABU RahmehMiddle School Directorsince 2022
Ryan BoccuzziUpper School Directorsince 2023
Sue BelcherHead of School, the Downtown Schoolsince 2019
Thomas RonaMath Teacher and Department Headsince 2019
Wellesley WilsonDirector of Admissionssince 2022

Pay and hours

year to 30 June 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
Kai BynumHead of School40$861k$35k
Birage TandonAssoc. Head of School/CFO40$499k$35k
Sue BelcherHead of Downtown School40$306k$42k
Ryan BoccuzziUpper School Director40$291k$37k
Daiga GalinsDirector of Development40$252k$42k
Reem Abu RahmehMiddle School Director40$225k$26k
Wellesley WilsonDirector of Admissions40$212k$26k
Bryan SmithDirector of Experiential Education40$203k$37k
Jamie BrittoDirector of Technology40$203k$24k
Ari WorthmanDirector of College Counseling40$191k$24k
Jamie AsakaDirector of Student Support40$181k$41k
Sean O'donnellChair5$0
Joanna BlackVice Chair5$0
Charlotte GuymanSecretary5$0
Mark KlebanoffTreasurer5$0
Artemios PanosImmediate Past Chair2$0
Bridgette TaylorTrustee2$0
Sarah BartonTrustee2$0
Nate BenjaminTrustee2$0
Michelle Chang ChenTrustee2$0
David de la FuenteTrustee2$0
Lloyd FrinkTrustee2$0
Michael NachbarTrustee2$0
Gurdeep PallTrustee2$0
Eduardo PenalverTrustee2$0
Latosha SmithTrustee2$0
Keith TraverseTrustee2$0
Brandon VaughanTrustee2$0
David VictorTrustee2$0
Merrie WilliamsonTrustee2$0

About

Legal name
Lakeside School
EIN
910564971
Address
14050 1st Ave Ne, Seattle, WA, 98125-3025
State
Washington
Mission
The mission of lakeside school is to develop in intellectually capable young people the creative minds, healthy bodies, and ethical spirits needed to contribute wisdom, compassion, and leadership to a global society. We provide a rigorous, dynamic academic program through which effective educators lead students to take responsibility for learning. We are committed to sustaining a school in... (as filed on the Form 990)
Activity (NTEE)
B200 Education
IRS classification
501(c)03 (tax-exempt under section 501(c)(3) where shown)
Classified purpose
Education
Size band
9 (IRS master file code)
Formed
1923
Principal officer
Kai Bynum (as named on the Form 990)
IRS ruling date
1 January 1952
Status
Code 01 (unconditional exemption)
Form 990 filings on record
7, latest 2025
IRS Publication 78
PC (contributions deductible)

Most connected

Longest observed on the filings

≥7years on the filingsArtemios Panos
≥7years on the filingsBrandon Vaughan
≥7years on the filingsBridgette Taylor
≥7years on the filingsDavid Victor

Latest return

year to 30 June 2025iFigures from the newest Form 990 or 990-EZ in the IRS e-file releases of 2025 and 2026, for the year ending 30 June 2025. US dollars, as filed.
Total assets
$590.5m
Total liabilities
$48.1m
Net assets or fund balances
$542.4m
Contributions and grants received
$65.3m
Program service revenue
$45.3m
Grants and similar paid out
$10.5m
Employees
559
Volunteers
220

Filed finances

1 yeariTotals as filed on the IRS Form 990 (revenue and expenses), by tax year.
Tax yearTotal revenueTotal expensesSurplus or deficit
2024$125.3m$62.7m$62.7m

As filed on the IRS Form 990. US dollars.