AGS American Glass Services has acquired Mark Industries, a commercial glazing contractor based in Elgin, Illinois. Mark provides fabrication and installation of commercial glass systems for warehouse, office, retail and other building types throughout the greater Chicago area.
AGS officials say the acquisition extends AGS’s footprint into the Chicago metropolitan market and places Mark near AGS’s East Moline, Illinois, operations. Mark’s owner and president, Josh Cunningham, will join AGS and continue to lead the business.
The Sterling Group Foundation Fund launched AGS in July 2025 through its investment in Omni Glass & Paint and East Moline Glass, two Midwest glazing businesses that serve as the platform’s core operating companies. Officials say that with the addition of Mark, AGS becomes “one of the largest glazing contractors in the Midwest and ranks among the top glazing platforms in the United States by revenue.”