Countryside Bank is part of Wintrust, a financial holding company based in Rosemont, Illinois, with more than $36 billion in ... assets. Through our multiple companies and divisions, we provide traditional community banking and commercial banking services, wealth management solutions, commercial and life insurance premium financing, mortgage origination, and more. We offer community-oriented personal and business banking services to customers located in the greater Chicagoland area, northwest Indiana, and southern Wisconsin through more than 175 community bank locations. read more