Parsons Corporation Share: Acoustical/Air/Noise/VibrationConstruction ManagementGeotechnical EngineeringHydrology/HydrogeologyPlanningStructural EngineeringTransportation PlanningWater/Wastewater Parsons Corporation Visit Website 600 University St Ste 700 Seattle, WA 98101-4166 (206) 494-3101 (206) 494-0960 (fax) Map What's Nearby? Distance: 5 10 15 20 25 50 mi.