Illinois · Defense151 companies

Defense manufacturing suppliers in Illinois

151 companies in Illinois are listed below. U.S. manufacturers whose descriptions or tags say they serve defense customers. Confirm the specific requirements (materials, certifications, documentation) with each supplier.

Listings come from each company’s public information and may be incomplete, so confirm capabilities, materials and certifications with the shop before you commit. The fastest way to get quotes is one request: attach your drawing (PDF or STEP) or describe the part, and Noramark routes it to U.S. shops that fit.

The most listings are in Chicago, IL (14), Elk Grove Village, IL (10) and Elgin, IL (5). Certifications stated: 64 ISO 9001, 21 AS9100 and 7 Nadcap.

Center Tool Co

Noramark member
Hampshire, IL · Machining, Grinding, Tool and die, Welding

Industries: Aerospace, Automotive, Consumer Products, Defense

Spring Grove, IL · Metal finishing, Heat treating, NDT: dye penetrant, NDT: eddy current

Industries: Aerospace, Defense, Energy, Marine

Spring Grove, IL · Heat treating, NDT: dye penetrant, NDT: eddy current, NDT: magnetic particle

Industries: Aerospace, Defense, Energy, Marine

Chicago, IL · Machining, Welding, Laser cutting, Metal stamping

Industries: Aerospace, Automotive, Defense, Medical

Green Bay, IL · Metal finishing, Powder coating, Industrial painting, NDT: dye penetrant

Industries: Aerospace, Agriculture, Automotive, Defense

Downers Grove, IL · Grinding, Heat treating

Industries: Aerospace, Agriculture, Defense, Food Processing

Downers Grove, IL · Injection molding, Metal finishing, Electroless nickel plating, Passivation

Industries: Aerospace, Automotive, Defense, Energy

Naperville, IL · Injection molding

Industries: Aerospace, Agriculture, Automotive, Defense