Dirk Grotenhuis

The American Society of Civil Engineers, founded in 1852, is the oldest national engineering society in America. The non-profit company is based in Reston, VA and has subsidiaries in the United States. With over 150,000 members worldwide, the organization advocates for sustainable and resilient practices to maintain and modernize the nation's infrastructure. The company also works to increase investment in infrastructure and improve engineering knowledge and competency. The society's Civil Engineering Landmark Program recognizes historically significant civil engineering projects, structures, and sites.

Bryant Associates, Inc. provides professional consulting services. It offers civil engineering, structural engineering, traffic engineering, water resources, construction management, and surveying services. The company was founded by by Jack. D. Bryant in 1976 and is headquartered in Boston, MA.

Hoyle Tanner & Associates, Inc. provides engineering and planning solutions. Its services include aviation, bridges, construction engineering and inspection and drinking water, roadway and stormwater. The company was founded in 1973 and is headquartered in Manchester, NH.

Resource Systems Group, Inc. engages in the provision of consulting services. The firm offers transportation planning, market strategy, environmental permitting, and custom software development services. The company was founded by Thomas Adler, Colin High, and Dennis Meadows in 1986 and is headquartered in White River Junction, VT.