Janesville is a leading producer of automotive felt-based molded and die-cut products, operating as a Tier I and Tier II supplier to the automotive and transportation industry. We lead the industry in fiber expertise and manufacturing capabilities. Our quality, performance, and functionality benchmarks serve as the performance reference for fiber-based thermal and acoustical applications worldwide. Founded to manufacture cotton rolls and batting for the furniture industry, Janesville shifted to the transportation market with the rise of mass-produced automobiles. Today Janesville is one of the worlds largest producers of acoustical and thermal fiber insulation to a variety of automotive applications. Customers count on Janesville for products that are cost effective, recyclable, weight conscious, and engineered to the highest quality standards. They trust us to provide innovative solutions that advance their business.