United Business Bank operates a regional network of full-service branch locations and commercial lending offices strategically established across multiple western states in the United States, including California, Washington, Colorado, New Mexico, and Nevada. The exact count of physical banking centers fluctuates periodically as the parent holding company, BayCom Corp, executes targeted branch optimizations or community bank integrations. Each location focuses heavily on providing tailored commercial loans, treasury management solutions, and personalized deposit services to small and mid-market businesses.