Founded in 1885, Parsons Brinckerhoff is one of the leading companies in the development and operation of infrastructure throughout the world. It is also known as PB and provides strategic consulting, planning, engineering, and program and construction management services to public and private sector clients. Parsons Brinckerhoff is an ISO 9001-certified company and operates more than 5 subsidiaries. The company is active in multiple market sectors, including transportation, power generation, water and wastewater management, environment, and urban and community development. Headquartered in New York City, Parsons Brinckerhoff maintains a presence in Dallas. The company has a staff of more than 12,000 employees throughout the world.