RICHMOND—Governor Ralph Northam today announced that Guidehouse, a management consulting company serving the public and commercial sectors, will invest $12.7 million to establish a global headquarters operation at Tysons Corner in Fairfax County. The company’s new campus at 1676 International Drive in McLean will accommodate recent growth and an increased demand for services, and will house more than 1,550 employees at full capacity. Virginia successfully competed with Maryland and Washington, D.C. for the project, which will create more than 900 new jobs.