Summit Materials, Inc., through its subsidiaries, produces and sells heavy-side construction materials and related downstream products. Its products include crushed stone, construction sand and gravel, cement and ready-mixed concrete, asphalt paving mixes, and limestone and concrete products. The company also provides road paving and construction services. In addition, it operates waste, construction, and demolition debris landfills; and liquid asphalt terminal operations. Summit Materials, Inc. was founded in 2009 and is headquartered in Denver, Colorado.