Allegheny General Hospital
Alstom Power, Inc.
Amerigas
Ashland Chemical
B.P. Oil
Michael Baker International
Verizon Communications
Buckeye Pipeline Company
Wabtec
C.B. RICHARD ELLIS
Chapman Corp
City of Pittsburgh
Duquesne Light Company
Elmhurst
CPS Construction
American Zinc Recycling Corp.
General Tire
Go Green Construction
Goodyear Tire & Rubber
Union Carbide
Hertz Corp
Jendoco Construction
JPs Construction
Kmart Corp
Kopp Glass
Lockamp Properties
M&J Wilkow Properties
Minnottee
McKnight Property Management
North Allegheny School District
Verland Foundation
PA Dept. of Transportation
Park Corp
Peoples Natural Gas
Pittsburgh Cultural Trust
Pittsburgh National Bank
Radisson Hotel
Ranbar Electrical Materials
Ramada Hotel
Repal Construction
SAI Engineering
Turner Construction
UPMC
Eastman
Foster, Wheeler & Zack
Dick Corp
SEARS
General Electric
Loews Theatres