Organization Services

Founded in 1885, (originally as Parsons Brinckerhoff by William Barclay Parsons in New York City), WSP USA is the U.S. operating subsidiary of WSP Global, a major Canadian professional services firm.WSP USA delivers multidisciplinary engineering, consulting, planning, environmental, and program management services across energy, infrastructure, transportation, water, buildings, and environment sectors. With approximately 14,000 to 15,500 employees across 150–200 U.S. offices, the firm supports iconic projects including One World Trade Center, Salesforce Tower, national transit systems, airports, stadiums, and energy/facility programs.Recent acquisitions—such as Golder, Louis Berger’s U.S. arm, Ecology & Environment, and LT Environmental—have expanded its capabilities in environmental, mining, and energy services.