PacWest Bancorp is the holding company for Pacific Western Bank, which operates about 75 branches in Southern California, plus three in the San Francisco Bay Area and another in the Phoenix area. The bank caters to small and midsized businesses and their owners and employees, offering traditional deposit and loan products and services. Commercial real estate mortgages, business loans (including Small Business Administration loans), and construction loans account for most of the bank's lending activities. It also originates residential mortgage, consumer, and other loans. The bank offers investment services and international banking through agreements with correspondent banks.