WSP director and company president Pierre Shoiry has been named chief executive of the combined group as WSP Global completes the US$1.3 billion purchase of Parsons Brinckerhoff Group, the professional services division of Balfour Beatty. WSP will remain headquartered in Montreal, Canada.

Mr Shoiry has been with WSP since 1989 in a variety of roles including senior associate engineer municipal infrastructure and vice president business development.

“I am pleased with this acquisition, as we become an industry leader, with the ability to deliver more expertise and services to our client base across the world,” Mr Shoiry said in a media statement.

“We will now focus on combining our respective businesses and on generating revenue synergies, such as in the rail sector where we see an opportunity to combine WSP’s expertise in above ground station and platform design, with Parsons Brinckerhoff’s expertise in tunnelling and underground technology or in the aviation sector, where our expertise in land and air sides are complementary.”

George J Pierson, president and chief executive of Parsons Brinckerhoff, was appointed an executive director of the corporation, and will transition from CEO of Parsons Brinckerhoff to a non-executive director position at the end of the year.

The combined entity is now one of the world’s leading professional services firms in its industry, providing integrated solutions across multiple disciplines to government, businesses, architects and planners. The services provided include designing sustainable transport networks, urban planning, environmental remediation, structural engineering, environmental engineering and developing sustainable energy sources. The companies’ combined pro forma revenue in the 12 months ended 31 December 2013 was $4.5 billion.

The WSP/PB group has about 31,500 employees, including engineers, technicians, scientists, architects, planners, surveyors environmental specialists, as well as other design, program and construction management professionals, based in more than 500 offices, across 39 countries on five continents.