Scott Wilson Group plc was a global integrated design and engineering consultancy with its headquarters in the United Kingdom. Founded as a civil engineering firm in 1951, the company broadened its range of services through acquisitions. Scott Wilson offered consultancy and professional services in the railways, buildings and infrastructure, environment and natural resources and roads sectors, and at its peak employed 5,500 people in 80 offices worldwide. Scott Wilson became a public limited company in 2006, and in 2010 was purchased by URS Corporation that in turn was purchased by AECOM.

URS Corporation was an engineering, design, and construction firm and a U.S. federal government contractor. Headquartered in San Francisco, California, URS was a full-service, global organization with offices located in the Americas, Europe, Africa, and Asia-Pacific.