S&T Bancorp, Inc. is a bank holding company, which engages in the provision of consumer, commercial, and small business banking services, which include accepting time and demand deposits and originating commercial and consumer loans, brokerage services, and trust services including serving as executor and trustee under wills and deeds and as guardian and custodian of employee benefits. It also manages private investment accounts for individuals and institutions through its registered investment advisor. The company was founded on March 17, 1983 and is headquartered in Indiana, PA.