Summit Materials, Inc. is a vertically integrated construction materials company, which engages in manufacturing construction materials and related downstream products. It operates through the following segments: West, East, and Cement. The West segment includes operations in Texas, Utah, Arizona, Colorado, Idaho, Wyoming, Oklahoma, Arkansas and British Columbia, Canada. The East segments refers to its East and Central regions and serves markets extending across the Midwestern and Eastern United States. The Cement segment is involved in Hannibal, Missouri and Davenport, Iowa cement plants, and distribution terminals along the Mississippi River from Minnesota to Louisiana. The company was founded by Thomas W. Hill on September 23, 2014 and is headquartered in Denver, CO.