Design and Engineering

Eichleay Corporation

CLI Corporation

D.R. Teyssier, PE - Engineers

House and Building Engineering

Tippins Incorporated

Donald E. Shaw, P.E.

Engineering Graphics

Universal Technology, Inc.

Veritas Engineering Company

SE Technologies, Inc.

Automatika, Inc.

Gray-Warnick Engineering

HLB Engineering

A D M Solutions

Camp Dresser & McKee, Inc

Fuellgraf Electric Company

O'Donnell Consulting Engineers, Inc.

Custer Services, Inc.

Matco Associates, Inc.

Pittsburgh Materials Technology, Inc.

AE&C Engineering

RL Interiors, Inc.