Petro-Chemical

• Ashland Chemical
• Dyno-Nobel, Inc.
• Eastman Chemical
• INDSPEC Chemical
• Koppers-Clairton Plant
• Neville Chemical
• Nitrochem, Inc.

Manufacturing and Other

• Armstrong Tile
• Hamill Manufacturing
• New Brighton WWTF
• Sony Electronics
• US Filter
• USX-Irvin
• Weirton Steel

Power and Mining

• Allegheny Energy Supply
• CONSOL
• Ebensburg Power
• GPU Energy
• Homer City Power-E.M.
• Reliant Energy
• Westinghouse Electric

Public Sector/Bridge Projects

• NY/NYC Transit Authority
• NY DOT
• Ohio DOT
• Maryland DOT
• Michigan DOT
• West Virginia DOT
• Penn DOT/ Pittsburgh Penn DOT
• Connecticut DOT
• ME DOT

Steel Fabricators

• Aquatech International
• American Bridge Company
• Colonial Iron Works
• Durabond Steel
• Havens Steel
• High Steel Incorporated
• Hirschfield Steel
• LB Foster
• Power Piping