 Along with Northern Michigan University, the largest employers in Marquette are the Marquette Area Public Schools, UP Health System-Marquette (a regional medical center that is the only Level 2 Trauma center in the Upper Peninsula), Marquette Branch Prison, RTI Surgical, Charter Communications, and Blue Cross Blue Shield of Michigan.Marquette is known for its breweries, including Ore Dock Brewing Company and Blackrocks Brewery.Five breweries were extant in the city ().