Guaranty Bank is a 4th generation family owned company that has its headquarters at Milwaukee in the state of Wisconsin. Guaranty Bank was founded by Joseph Saffro in the year 1923 and it began its operations in a small office located at Milwaukee and by then it was just offering mortgage and savings account services. Guaranty Bank has evolved into a full service retail bank with their services and products expanding. With the continued growth of the bank other family members started joining the company. Currently, Guaranty Bank offers personal banking, online banking and business banking services with a wide range of services to choose from.