Byline Bancorp, Inc. operates as the bank holding company for Byline Bank that provides various banking products and services for small and medium sized businesses, commercial real estate and financial sponsors, and consumers in the United States. It offers various retail deposit products, including non-interest-bearing accounts, money market demand accounts, savings accounts, interest-bearing checking accounts, and time deposits; ATM and debit cards; and online, mobile, and text banking services, as well as commercial deposits. The company also provides term loans, revolving lines of credit, and construction financing services; senior secured financing solutions to private equity backed lower middle market companies; small business administration and the United States department of agriculture loans; and treasury management products and services, such as treasury services, information reporting, fraud management, cash collection, and interest rate derivative products.