Armstrong World Industries is one of the leading designers and manufacturers of flooring systems, ceilings and cabinets in the world. It is a publicly traded company that operates more than 35 plants in over five countries. The company maintains a staff of nearly 11,200 employees. Armstrong World Industries has annual sales revenue of approximately $3 billion. The company serves several clients in the residential and commercial sectors. It operates a business unit, Armstrong Floor Products, which offers products under the Bruce, Robbins, ArmaLock and SwiftLock brands. Armstrong World Industries maintains Armstrong Building Products, which provides acoustical ceilings and suspension systems. The company offers a range of design, fabrication and installation services. It serves several single-family and multifamily builders and remodelers. Armstrong World Industries administers a recycling program.