PB, previously known as Parsons Brinckerhoff, provides strategic consulting, planning, engineering, and program and construction management services to public and private sector clients. It serves transportation, power, buildings and facilities, water and wastewater treatment, environmental, and urban and community development sectors. The company offers environmental impact assessments, geographic information systems, site remediation, solid waste management and institutional advisory services. PB also offers financial advisory, risk management, cost estimates, design project management, budget evaluations, quality assurance, design visualization and planning services. Its projects include Delhi Mass Rapid Transit System, SEREBAR Groundwater Treatment System, Los Angeles Unified School District and Detroit Recreation Department. PB has been operational for more than 120 years and maintains a location in Seattle.