USG is the world's leading producer of gypsum wallboard, joint compound and a vast array of related products for the construction and remodeling industries. We are also the global leader in the manufacture of ceiling suspension systems and are recognized as the premier acoustical panel and specialty ceiling systems innovator. Our family of products provides creative building solutions that set new standards for productivity and efficiency, helping contractors and architects deliver high qualit ...

Armstrong World Industries, Inc. is a global leader in the design and manufacture of floors, ceilings and cabinets. In 2006, Armstrong’s consolidated net sales totaled approximately $3.4 billion. Based in Lancaster, PA, Armstrong operates 48 plants in 10 countries and has approximately 13,000 employees worldwide.