VHB Inc. - Vanasse Hangen Brustlin

Smiley Engineering, Inc.

Recore Electrical Contractors, Inc.

Little Diversified Architectural Consulting

Labella Associates, D.P.C.

Civil and Environmental Consultants Inc.

Consulting engineering firm founded in Pittsburgh in 1989. We have grown to 25+ offices and 1200+ employees. Providing civil, wastewater, and environmental engineering services nationwide.