About Us

MWI manufactures a wide variety of springs

MW Industries, Inc. (MWI) is comprised of several manufacturing locations and headquartered in Rosemont, Illinois. We are the largest and most diversified specialty spring and fastener manufacturer in the United States. Through decades of growth, innovation, and dedication, MWI has proven to be a world-class supplier of custom springs, fasteners and metal stampings.

MWI has expertise in several key areas:

  • Customer service capabilities that include expert technical support, highly-trained field and inside sales engineers, quick response product delivery and e-commerce convenience.
  • Production technologies applied to spring coiling, fastener manufacturing; flat stamping and heat-treating in a wide range of material types and sizes.
  • Engineering excellence in metallurgy, CAD design, CAE analysis, fatigue testing and performance analysis.
  • Dedication to quality, as evidenced by our ITAR, ISO, TS and AS-9100 certifications, as well as compliance with many of our customers’ and end-use industry performance standards.

The continued expansion of MWI and its locations into niche product lines, has the added benefit of sharing new product and production technologies with all locations.