Founded in 1906, CEMEX is one of the leading providers of building materials companies that provides products and reliable services to customers and communities in more than 50 countries throughout the United States. Based in Tucson, Ariz., it offers a range of products and services, such as cement, aggregates, ready-mix concrete, trading and related products, to name a few. The firm offers a wide range of building materials, from plumbing and electrical supplies to paint, lumber and lighting fixtures.