TriCo Bancshares is a California corporation organized to act as a bank holding company for Tri Counties Bank. The Bank is a California-chartered bank that is engaged in the general commercial and retail banking business in California counties. The Bank provides a breadth of personal, small business, and commercial financial services, including accepting demand, savings and time deposits and making small business, commercial, real estate, and consumer loans, as well as a range of treasury management services and other customary banking services including safe deposit boxes at some branches. The company's primary source of revenue is the net interest income.