Explore Pennsylvania’s top engineering firms supporting construction and infrastructure development across the state.
From civil to structural and environmental services, these companies deliver the expertise needed to bring complex projects to life.
A multidisciplinary engineering firm offering civil, structural, environmental, and transportation engineering services for public and private sector construction.
Location: Philadelphia, Pittsburgh, King of Prussia, PA
Website: pennoni.com
A nationally recognized engineering and consulting firm known for infrastructure, water, and environmental projects throughout Pennsylvania.
Location: Moon Township, Allentown, Harrisburg, PA
Website: mbakerintl.com
Contact: 1-866-727-9030
Trusted for delivering sustainable and innovative engineering solutions in transportation, water resources, and construction services.
Location: Camp Hill, Valley Forge, Pittsburgh, PA
Website: gannettfleming.com
Contact: 1-800-233-1055
Offers planning, design, and construction services for buildings, bridges, rail, and public infrastructure.
Location: Philadelphia, Erie, Mechanicsburg, PA
Website: urbanengineers.com
Specializes in civil, structural, transportation, and architectural engineering for construction and infrastructure development.
Location: Douglassville, Pittsburgh, Philadelphia, PA
Website: stvinc.com
Regional firm providing civil, transportation, and site development engineering solutions tailored to contractors and municipalities.
Location: Greensburg, PA
Website: pieengineers.com
Contact: 724-853-5555
Internationally known firm with strong presence in Pennsylvania, focusing on infrastructure, civil, and environmental engineering.
Location: Philadelphia, Pittsburgh, Bethlehem, PA
Website: hdrinc.com
Contact: 1-800-HDR-7762
Award-winning transportation and traffic engineering firm supporting highway, municipal, and site construction.
Location: Pottstown, Harrisburg, West Chester, PA
Website: trafficpd.com
Contact: 610-326-3100
Engineering and architectural firm offering design-build and civil engineering for energy, infrastructure, and industrial construction.
Location: Wilkes-Barre, Bethlehem, PA
Website: borton-lawson.com
Contact: 570-821-1994
Full-service firm offering geotechnical, environmental, and structural engineering for private and public construction clients.
Location: New Cumberland, PA
Website: navarrowright.com
Contact: 717-441-2216