STV is a nationally recognized leader in the transportation industry.
The firm provides multidiscipline engineering, architectural, planning,
environmental, design-build and construction management services
for a wide range of projects that include roads, highways, bridges,
airports, ports, rail and transit. STV employs 1,600 professionals in
offices throughout the U.S.
Established in 1925, Volkert is a leading provider of infrastructure
engineering services to federal, state and municipal governments as
well as private industry throughout the United States and
internationally. Serving clients in transportation, energy, water, and
the environment, Volkert provides a broad range of services, including
design, construction engineering and inspection, construction
management, program management, and alternative delivery.