Johns Manville is an American speciality materials company whose products are used in a variety of industries including aerospace, automotive, energy, building and filtration. The company was founded in 1858 as the H.W. Johns Manufacturing Company and acquired its current name in 1997. Johns Manville employs approximately 7,000 workers across the world, operates 44 manufacturing facilities in North America, Europe and China, and is headquartered in Denver, Colorado, U.S.