Parsons Brinckerhoff is a global consulting firm assisting public and private clients to plan, develop, design, construct, operate and maintain thousands of critical infrastructure projects around the world. Founded in New York City in 1885, Parsons Brinckerhoff is a diverse company of 14,000 people in more than 150 offices on five continents.They are currently at work on thousands of infrastructure projects throughout the world. These range from the mega-projects that define an entire region to smaller, more local projects.

They serve both public and private clients, and offer skills and resources in strategic consulting, planning, engineering, program management, construction management, and operations and maintenance. They provide services for all modes of infrastructure, including transportation, power, energy, community development, water, mining and the environment.

In October 2009 Parsons Brinckerhoff became the professional services division of Balfour Beatty plc, the international infrastructure group operating in professional services, construction services, support services and infrastructure investments. In January 2010, Heery International, an architecture, interior design, engineering, construction management and program management firm based in Atlanta, Georgia, became the U.S. buildings operating company of Parsons Brinckerhoff. In October 2010, the Halsall Group, based in Toronto, became Parsons Brinckerhoff's Canadian operating company.