Job Shop Manufacturing Companies in Illinois

Illinois has approximately 13,000 manufacturing establishments and 570,000 manufacturing employees. Illinois is a top-five manufacturing state, with Chicago as a metal fabrication and food processing center, Peoria as Caterpillar's headquarters, and a vast network of industrial suppliers.

Illinois is one of the leading states for job shop manufacturing. Job shop manufacturing includes CNC machine shops and custom manufacturing operations that produce parts in low to medium volumes for diverse customer bases. These shops are the backbone of American manufacturing, providing precision machined, fabricated, and finished components to industries ranging from aerospace and medical to energy and defense.

CNC Milling Shops: Machine shops specializing in 3, 4, and 5-axis milling of precision components from metals and engineering plastics.

CNC Turning Shops: Operations focused on turned components using CNC lathes, turning centers, and Swiss-type machines.

Multi-Process Shops: Full-service machine shops offering milling, turning, grinding, EDM, and secondary operations under one roof.

Prototype & Short-Run Specialists: Shops focused on fast-turnaround prototype machining and low-volume production for engineering teams.

Major industrial centers in Illinois include Chicago, Rockford, Peoria, Aurora, Joliet, and Elgin. These cities have concentrations of manufacturers across sectors including metal fabrication, food processing manufacturing, and chemical manufacturing.