Armstrong World Industries, Inc. is a global leader in the design and manufacture of floors, ceilings and cabinets. In 2011, Armstrong consolidated net sales totaled nearly $2.9 billion. Based in Lancaster, PA, Armstrong operates 32 plants in eight countries and has approximately 9,100 employees worldwide.
Waste Management, Inc, based in Houston, Texas, is the leading provider of comprehensive waste management services in North America. Through its subsidiaries, the company provides collection, transfer, recycling and resource recovery, and disposal services. It is also a leading developer, operator and owner of waste-to-energy and landfill gas-to-energy facilities in the United States. The company's customers include residential, commercial, industrial, and municipal customers throughout North America.