Thomas W. Hill

Part of Summit Materials LLC, Summit Materials Corporations I, Inc. is a leading vertically integrated materials-based company that supplies aggregates, cement, ready-mix concrete, and asphalt in various locations. The company is based in Denver, CO and offers customers a single-source provider of construction materials and related downstream products in the public infrastructure, residential, and non-residential end markets. The company believes in combining vertical integration with an interdependent company structure to provide increased efficiencies and economies of scale while empowering operating companies to make local, well-informed decisions. Summit Materials uses barges and railroads to conserve resources and reach more customers.

CRH America, Inc. engages in the provision of building products and materials. The company was founded in 1978 and is headquartered in Atlanta, GA.

CRH Americas Materials, Inc. supplies aggregates, asphalt, ready mixed concrete, and construction and paving services. The company is headquartered in Atlanta, GA.

The National Asphalt Pavement Association is a trade association that advocates for the interests of asphalt producers and contractors on a national level. The non-profit company is based in Riverdale, MD. The company works with Congress, government agencies, and other trade and business organizations.

National Stone, Sand & Gravel Association is a non profit organization which advocates for the aggregates industry. It advances public policies that protect and expand the safe, environmentally responsible use of aggregates that build America’s infrastructure and economy. The company is headquartered in Alexandria, VA.