ABB Inc.

Acutronic USA Inc

Aerotech

AIG Advanced Integration Group

Air Products & Chemicals

AK Steel

Algor

All-Clad Metalcrafters

Allegheny Energy

Allegheny Ludlum

American Beverage

American Bridge Corporation

ANSYS, Inc.

Applied Control Systems, Inc.

Areva T & D

ArgonST

Armstrong World Industries

Bacharach Instruments

BAE Systems/York, Pa

Bayer Materials/Pittsburgh PA

BMW/Spartanburg, SC

Boeing/St. Louis, MO

Bombardier

Brayman Construction

Burgess & Niple

BWXTY12/Oak Ridge, TN

Cameron Measurement Systems

Camp Dresser McKee, Inc.

Carbon Steel Inspection

Carpenter Technology

Cemex

Centocor Research & Development

ChemAdvisor

Civil & Environmental Consultants

Colorcon

Compunetix

Corna/Kokosing/Columbus, OH

Crawford Consulting

Crucible Compaction Metals, Inc.

Crucible Research

C.S. Davidson/York, Pa

CSX Transportation / Richmond, VA

Curtiss-Wright EMD

Delta Airport Consultants/VA

Dick Corporation

E.I. Dupont

Eaton Electric

ECI Telecom

Ellwood Group, Inc.

Emerson Process

Equitable Resources

Exonic Systems/BW Rogers

FedEx Ground Corporate

FedEx Ground Facilities

First Energy Corporation/Akron, Ohio

First Energy Nuclear Corporation

GAI Consultants

G.E. Advanced Materials/Waterford, NY

G.E. Fanuc / Charlottesville VA

G.E. Industrial Systems / Bridgeville PA

G.E. Infrastructure/Erie, PA

G.E. Lighting/Bridgeville PA

G.E. Lighting/Ravenna OH

G.E. Pittsburgh Service Center/West Mifflin, Pa

George Weston Bakeries

Giant Eagle, Inc.

GlaxoSmithKline

Great Lakes Automation/Erie, Pa

Groundwater & Environmental Services (Cranberry, Pa; Exton, Pa; Hartford, Ct)

Harley Davidson

H.B. Maynard and Company

Hankook Tire/Akron, Ohio

Hatch Kaiser

H.J. Heinz Corporation

Hershey Chocolates USA

Honda of America/Marysville, Ohio

Honeywell / Richmond, VA

IBACOS, Inc.

Industrial Scientific

Iowa State University

JB Fey Construction

Joy Mining & Manufacturing

K & M Wireless/San Diego, CA

Keywell L.L.C.

Kiewit Construction Company

Kodak Versama

Kurt J. Lesker Company

Landau Building Company

Lanxess

Lifecor

Logistics Management Institute/McLean, VA

LUK, Inc.

Mascaro Construction

Massaro Corporation

McNeil Products

Medrad, Inc.

Metso Minerals

Mine Safety Appliances / Cranberry PA

Mine Safety Appliances / Evans City PA

Mine Safety Appliances / Murrysville PA

National Radio Astronomy Observatory

National Security Agency/MD

Naval Research Laboratory/DC

Naval Surface Warfare Center/Philadelphia, PA/Bethesda, MD

New Energy Technology Center

Norfolk Southern/Norfolk, VA

Nova Chemicals

Ohio Edison/Akron, OH

OSRAM Sylvania / St. Mary’s PA

OSRAM Sylvania / Towanda PA

OSRAM Sylvania / Warren PA

P.J. Dick Corporation

PA Dept of Transportation / Bridgeville

PA Dept of Transportation / King of Prussia

PA Dept of Transportation / Indiana

PA Dept of Transportation / Allentown

Parker Hannifin

Pfizer

Powercast Corporation

Prominent Fluid Controls

Rail Power/Erie, Pa

RE Crawford Construction

Relex Software Corporation

Reliant Energy

Respironics

Richmond Engineering

Rizzo Associates

Robinson Industries

Ross Distributors/Carlisle, PA

Schroeder Industries LLC

Sci-Tex

Shumaker Consulting/Binghamton, NY

Siemens/Westinghouse

SMS Demag, Inc.

Sony

Spartech

Teco Energy/Tampa, FL

Temple-Inland

Tetratech NUS

Thornton-Tomasetti

Traco

Trumbull Corporation

Turner Construction

Ulliman Schutte/Miamisburg, Ohio

Union Electric Steel

U.S. Army Corps of Engineers

U.S. Steel Group

U.S. Steel Group/Detroit, MI

U.S. Steel Mon Valley Works

U.S. Steel/Clairton Works

Union Switch & Signal

United Parcel Service/New Stanton PA

UPS Professional Services/New Stanton, Pa

USAirways

Valley Forge Laboratories

Valspar Corporation

Verizon Wireless

Vesuvius Crucible

VoCollect

Voest Alpine

Washington Penn Plastics

Wabtec

Wal-Mart

Walsh Construction

Westinghouse Electric Co.

Westinghouse Energy Center

Westinghouse Specialty Metals

Weyerhaeuser

Whiting Turner Construction

Woods Hole Institute/Boston, MA