Welcome to ISW Corporation, a leading manufacturer of insulation, filtration, sound dampening and other commercial products derived from steel wool, knitted wire mesh or thermal insulating materials. ISW Corporation Inc (formerly known as International Steel Wool) has a history dating back almost 100 years. Founded in 1924, International Steel Wool was originally one of the largest manufacturers of steel wool in the world. With a strong design and engineering team, we can provide innovative solutions for many automotive, industrial and commercial applications. For prompt quoting and convenient product development and manufacturing capabilities in the Midwest, please just give us a call to see what we can do for you.