Laird Norton Wetherby (LNW) is a privately held wealth advisory firm formed by the merger of Laird Norton Wealth Management and Wetherby Asset Management. With a history dating back to 1967, LNW serves high-net-worth individuals, families, and foundations, offering services in wealth planning, investment management, and trust and estate administration.

The firm operates as both a Registered Investment Advisor and a state-chartered trust company, with offices in Seattle, San Francisco, New York, Los Angeles, Philadelphia, and Sioux Falls. LNW is majority-owned by the Laird Norton Company, one of the longest-standing family enterprises in the U.S., and is also partially employee-owned. ​