3M Company

Abbott Laboratories

ABC Sports

Agilent Technology

Air Tool Service Company

Akron Standard

Alaska Attorney General's Office

American Eurocopter

American Pneumatic Tool Company

American Portland Cement Alliance

Americold Company

Amoco Canada Petroleum Company

Amoco Chemical Company

Amoco Corporation (Corporate)

Amoco Fabrics and Fibers Company

Amoco Foam Products Company

Amoco Oil Company

Amoco Performance Products, Inc.

Amoco Production Company

Anchor Glass Container Corporation

Andrew Corporation

Anheuser-Busch, Inc.

Armstrong World Industries

Ash Grove Cement

AT&T

Avondale Ship Building Company

Barzilay, Inc.

Bausch & Lomb

Baxter Healthcare

Bell Helicopter Textron, Inc.

Black & Decker Corporation

Boise Cascade

BP America

BP Amoco

BP Chemical Company

BP Exploration Alaska

BP Oil Company

Bombardier LearJet

Burlington Northern Railroad Company

Cabella's

California Portland Cement

Centex Homes

Cessna Aircraft Company

Challenge Industries

Challenger Electrical Equipment Company

Chart Industries

Chicago Pneumatic Tool Company

City of Colorado Springs

City of Denver

City of Steamboat Springs, CO

Cleco Company

Clorox Company

COBE Cardiovascular Inc.

Colgate

Colorado Energy Management

Columbian Chemical Company

Con Agra Beef & Swift

Con Med Aspen Labs

Consolidated Rail Corporation (Conrail)

Continental Can Company

Corning Asahi Video Products

Cryovac North America

Decker Food Company

Destec Energy, Inc.

Denver Mint

Dresser Industries

Dynatec Drilling

Dyneon

Eastman Kodak

Eaton Corporation

Energy Industries, Inc.

Enron Liquid Fuels Company

ExxonMobil

Fairfield Development

Farrel Corporation

Fertrin of Trinidad and Tobago Ltd.

Florida Gas Transmission Company

Florida Pneumatic Manufacturing Corp.

Folgers Coffee Company

Foothills Pipeline Company

Ford Motor Company

Freeport-McMoRan Sierrita, Inc.

General Electric Plastics

General Motors Corporation

Guardian Industries

Georgia-Pacific

Gunther International

Hensel Phelps Construction

Hershey Chocolate

Hershey Pasta Group

Hewlett Packard

Holnam Inc.

Homestake Mining Company

Hormel

Honeywell

Hudson RCI

Hunter Douglas

Idaho National Laboratories

Imation Corporation

Ingersoll Rand Company

Intratex Gas Company

JBS, USA

JBS Five Rivers Cattle Ranch Feeding, LLC

Johns Manville

Johnson & Johnson

Kaiser Aluminum

Kennecott Energy

Kerr McGee Chemical Corporation

Kraft General Foods

Kwikset Corporation

Lafarge Corporation

Lamson Corporation

Lehigh Portland Cement

Lever Brothers Company

Lexmark International, Inc.

Liberty Mutual Insurance Company

Lockheed Martin

Longmont Foods

Lucent Technologies

Lufkin Industries

Marathon Ashland Petroleum

Marine Industries, N.W.

Marriott Corporation

Maxwell House Coffee Company

McWane Cast Iron Pipe Co.

Mesa County Transportation

MicroPoise, Inc.

MillerCoors

Monarch Cement

Monfort Finance Company

Monsanto

Montana Electric

Motorola Inc.

NALCO Chemical Company

New Belgium Brewing Company

North Texas Cement

Northrup Grumman

Occidental Chemical Company

Occidental Petroleum Co.

OEA Airbag Company

Olin Brass Oregon OSHA

P&H Mining Equipment Co.

PacifiCorp

Panduit Corporation

Payless Cashways, Inc.

Pepsi Cola

Peterbilt Motors

Pfizer Hospital Products Group

Phelps Dodge Corporation

Poulan Weed Eater Company

Powder River Basin Safey Association

Powder River Coal Company

Presbyterian Hospital

Procter & Gamble Manufacturing Company

Project and Construction Services, Inc.

Quaker Oats

R. C. Cement

Raytheon Company

Ready Mix Aggregates

RhonePoulenc Rorer

Rockwell International Corporation

Rocky Mountain Bottle Company

RR Donnelly

Ryerson Tull Steel

Saint-Gobain

Schlumberger Inc.

Sealed Air Corporation

Shell Oil Company

Sioux Tool, Inc.

Smurfit-Stone

Solarex, Inc.

Solvay Minerals

Spadone Machine Company

State Farm Insurance

State of Washington

Styro-Tech Superior Pneumatic & Manufacturing, Inc.

Swift & Company

Synthes

Teccor de Mexico

Teccor Electronics, Inc.

Texas Instruments, Inc.

The Coteau Properties Co.

The Folgers Coffee Company

Thor Power Tool Company

Thunder Basin Coal Co.

Todd Shipyards Corporation

Trapper Mine

U.S. Army

U.S. Department of Energy

Unilever

United Conveyor and Material Handling, Inc.

United Parcel Service (UPS), Inc.

United Technologies

Usibelli Mines

Valero Refining

Valleylab Inc.

Valspar Corporation

ValuPak

Vought Aircraft Company

Washington Attorney General's Office

Washington State Dept. of Transportation

Washington State Ferries

Wean United, Inc.

Weld County Public Works

White Consolidated Industries, Inc.

Winchester, Inc.

Wolfson Casing

Xcel Energy