Chicago CMM Calibration Services gets you professional CMM calibration across the Midwest, Great Plains, Mid-South & Mid-Atlantic. Calibration is performed by ISO/IEC 17025-accredited laboratories. The primary cities and states we operate in are as follows: Illinois — Chicago, Naperville, Aurora, Schaumburg, Elgin, Joliet, Rockford Wisconsin — Milwaukee, Madison, Green Bay, Kenosha, Racine, Appleton, Waukesha Indiana — Indianapolis, Fort Wayne, Evansville, South Bend, Hammond Michigan — Detroit, Grand Rapids, Lansing, Kalamazoo, Flint, Warren, Ann Arbor, Saginaw Kentucky — Louisville, Lexington, Bowling Green, Owensboro, Covington Minnesota — Minneapolis, Saint Paul, Rochester, Duluth, Eden Prairie, Bloomington