The SBT story began in 1976 with the organization of Suburban Bank of Elmhurst by a group of Elmhurst businessmen. Included on the Board of Directors were Al Nowczyk, Dan Bash and David B. Hill, Jr. Each of these men served as Chairman, CEO, and President. Following Mr. Hill's death in 2002, Blanche E. Hill became Chairman of the Board, CEO, and President of SBT. She served as president until September 21, 2010 when Donald A. O'Day was promoted to the position. Mrs. Hill remains CEO and chairman of the bank's board of directors.
The original site at 150 E. Butterfield Road is the home office of SBT and headquarters for the Commercial Loan Department.
With the acquisition of First Security Bank of Wood Dale in 1996 and Southwest Financial Bancorp in 1997, SBT grew to seven branches. In 1998, SBT opened its eighth branch in north Elmhurst and in 2000, SBT opened its ninth branch in Oak Lawn. The Wheaton branch was opened in 2005, followed by the Spring Road-Elmhurst branch in 2007. In 2008 the Park Avenue branch in Elmhurst City Centre opened.
SBT is a locally owned and operated community bank, serving the western and southern suburbs and Chicago's Beverly neighborhood. SBT offers personalized service to individuals and business customers through its Retail Banking, Commercial Banking, Corporate Cash Management, and Investment departments.