David S. Lowdermilk

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.

The American Council of Engineering Cos. is a premier organization that drives innovation in engineering. The non-profit company is based in Washington and has subsidiaries in the United States. The American company offers trust programs to enhance membership investment by helping to control firm costs. The organization empowers engineers and architects to shape the future through events and resources. ACEC is the leading trade association of firms in the $338B engineering design services industry, with over 5,500 member firms and 600,000 employees across the United States.