Endowment / Foundation

Updated:

Lakeside School

Lakeside School was established in 1919 as an independent coeducational day school in Seattle. Its endowment supports scholarships, faculty development, and...

Lakeside School

Lakeside School was established in 1919 as an independent coeducational day school in Seattle. Its endowment supports scholarships, faculty development, and core operations through long-term investments. The endowment deploys capital into buyout strategies, venture partnerships, and real estate vehicles. Geographic exposure spans the United States and the United Kingdom. Holdings include limited partner interests in Endowment Venture Partners LP and Vanguard Intermediate-Term Bond Index Fund. The school also holds direct real assets such as its Upper School Campus valued near $60 million and a new academic building under development. The institution employs 111 professionals across its Seattle facilities. It maintains membership in NAIS and NWAIS. A recent operational event occurred in October 2024 when the school participated as a speaker at the SAIS Annual Conference in Nashville. Adjacent structures include the Lakeside School Community Foundation, which raises funds for curriculum programs. The endowment's architecture ties directly to the school's governance through its board of trustees, with investment oversight supported by Cambridge Associates. This structure channels returns exclusively into educational operations rather than external distributions.

General information

Firm type

Endowment / Foundation

Year founded

1919

Location

Region

North America

Country

United States

City

Seattle

Corporate office

14050 1st Avenue Northeast, Seattle, WA 98125, United States

Principals

Judge Sean O'Donnell

Chair of the Board of Trustees

Sector focus

Education

Frequently asked questions

Who runs investment decisions at Lakeside School?

Investment oversight falls to the board of trustees, currently chaired by Judge Sean O'Donnell. Cambridge Associates serves as external investment advisor.

Does Lakeside School participate in fund commitments or only direct deals?

The endowment holds limited partner interests in multiple funds, including Commonfund Capital Private Equity Partners VII and Endowment Venture Partners LP.

What asset classes does the endowment target?

Allocations include private equity buyouts, venture capital, hedge funds, and real estate vehicles.

Where does the underlying wealth come from?

The endowment originates from donations, investment returns, and operational surpluses tied to the school's tuition and philanthropic support.

How is Lakeside School related to its foundation vehicle?

The Lakeside School Community Foundation operates as a separate entity raising funds specifically for curriculum enrichment and student programs.

Does Lakeside School maintain relationships with external allocators?

Trustee and donor ties include connections to Michael Larson of Cascade Investment and Charlotte Guyman of Berkshire Hathaway.

What investment stages does the endowment typically target?

Commitments focus on established private equity and venture funds rather than early-stage direct investments.

Profile maintained by using OSINT (open-source intelligence), regulatory filings, licensed data partners, and verified direct submissions. Read the methodology. Last updated: . Continuous refresh with full update cycles at least every 30 days.

Need institutional-grade insight on endowments & foundations?

Altss delivers:

Principals with verified direct contactsAllocation history by asset classOSINT-derived deal signals
Book a demo

Prefer a guided tour?

We’ll walk you through:

Interactive funding timelinesCustom mandate & allocation filters
Book a demo

More Seattle Endowment / Foundation profiles