Sterling Bank ("Sterling") is the largest commercial bank headquartered in Washington State and one of the largest regional community banks in the western United States. Since opening in 1983, Sterling Bank has grown to more than $9 billion in assets with more than 170 branches throughout Washington, Oregon, Idaho, and California. In February 2007, Sonoma Bank became a member of the Sterling family with 13 branch locations, offering Sterling Bank's products and services.

As a leading community bank in the Pacific Northwest, Sterling's culture reflects its spirit of relationship banking. Our business model centers on offering the full product suite of a large regional institution with the personalized service of a local community bank. Sterling's various business units (retail banking, commercial banking, private banking, and home loans) come together in partnership to provide outstanding service to our customers. The Sterling approach is simple. We get to know our customers and offer innovative solutions to help our customers achieve their financial objectives. Our local, knowledgeable bankers promise the individual attention our customers expect and deserve.