Chicago Metallic Corporation (founded 1893) is a major global provider of architectural building products and service - including metal panels and ceiling system, suspended grid systems, and acoustical and sustainable ceiling panels. The company was noted by the Chicago Tribune as “one of the largest global manufacturers and suppliers of roll-formed ceiling grid, stamped metal decorative ceiling panels and related products”.The company was owned by Jahn family from 1938 to 2013. On August 19, 2013, the company was acquired by the . The acquisition is part of the ROCKWOOL Group's strategy to globalize and develop its ceiling business.