STV is an award-winning professional firm consistently ranking among the country's top companies in education, justice, highways, bridges, rail and mass transit sectors. This success is the direct result of our employees' commitment to innovation and quality. Throughout the United States and Canada, STV’s professional, technical and support personnel offer services to a broad and expanding client base.

We provide a complete range of planning, engineering, architectural, environmental, and construction management services to transportation, infrastructure, design-build, institutional, commercial, energy, industrial, and military clients. Founded more than 100 years ago, we are quality-driven, client-focused, and have a vision for the future.