Abbott Laboratories Ltd.
Air Products & Chemicals Inc.
Alabama River Pulp and Paper Co.
Alcoa
Allegheny Power Service Corporation
Allied Signal
Alumax Aluminum Corporation
American Electric Power Co. Inc.
AMP Incorporated
Amtrak
Anheuser-Busch Companies Inc.
Aramco Services Company
Arco Chemical Company
Arizona State University
Armstrong World Industries
AT&T
Atlantic Richfield Company
Avery Dennison
Azko Nobel Fortafil Incorporated
B.F. Goodrich
B.P. Amoco Chemicals Incorporated
B.P. America Company
Baker Hughes Incorporated
Bally's Park Place Casino
Baylor University
Bell Atlantic Corporation
Bell Electric
BELLSOUTH
Bethlehem Steel Corporation
Biocraft Laboratories Incorporated
The Boeing Company
Boise Cascade Corporation
Boston Edison Company
Boston University
Bridgestone/Firestone Incorporated
California Polytech University
Campbell Soup Company
Cargill Corporate Headquarters
Carpenter Technology Corporation
Carolina Power & Light Company
Centerior Energy Corporation
Central Hudson Gas & Electric
Century Offshore Management Corp.
Champion International Corporation
Chevron Texaco Corporation
Chicago Transit Authority
Chrysler Corporation
Cleveland Transit Authority-
GCTRA
Coastal Corporation
Coca-Cola Company
Colgate-Palmolive Company
Columbia Gas System Service Corp.
ConAgra Incorporated
Consolidated Edison Co. of New York
Constellation Energy Group
Corning Incorporated
Crown Cork & Seal Co. Inc.
Dana Corporation
Delta Air Lines
Denver International Airport
Diamond Shamrock Incorporated
Disney World
Dole Foods Incorporated
Dow Chemical Company
Duke Power Company
Dulles Airport
Eastman Kodak Company
E.I. DuPont De Nemours
Emerson Electric Supply
Engelhard Corporation
Enron Gas Processing Company
Enron Oil and Gas India Limited
Exxon Mobil Corporation
First Energy Corporation
Florida Power and Light Company
FMC Corporation
Ford Motor Company
Fort Howard Corporation
Foster Wheeler Corporation
Fuji Electric Corp. of America
GEICO
Geisum Oil Company

General Electric Company
General Electric Specialty Company
General Motors Corporation
Georgia-Pacific Corporation
The Gillette Company
Glaxo Incorporated
Goodyear Tire & Rubber Company
Graybar Electric Company Inc.
Great Lakes Pulp & Fibre Inc.
Great Northern Paper Company
Greenhill Petroleum Corporation
Gulf States Steel Incorporated
Hammermill Papers
Harvard University
Hawaii Electric Light Company
Hershey Foods Corporation
Hess Oil Virgin Island Corporation
Hewlett-Packard Company
Home Depot
IBM Corporation
Idaho National Engineering Laboratory
Illinois Power Company
Indonesia Ministry of Forests
Intel Corporation
International Paper Company
JFK Airport
John F. Kennedy Space Center
Johnson Controls Incorporated
JVC Magnetics
Kansas City Power & Light Company
Kellogg Company 
The Kelly Springfield Tire Company
Keystone Steel and Wire Company
Kimberly-Clark Corporation
Koch Refining Company
Kohler Company
Kutztown University
Lockheed-Martin Corporation
Long Island Lighting Company
Louisiana Radio Communications
Lowes Corporate Campus
Lyondell Petrochemical Company
Magnavox Electronic Systems Co.
Mall of America
Marquette University
Mead Paper 
Monsanto Chemical Group
Motorola Incorporated
Nabisco Biscuit Company
NASA
Newark International Airport
Okalahoma State University
Occidental Chemical Corporation
Ohio State University
Oxy Petrochemicals Incorporated
Pacific Gas & Electric Company
Paramount Studios
Parsons Overseas Company
Parsons S I P Incorporated
Peco Energy Company
Petroleos Mexicanos
Pennzoil Products Company
Petrobras Brazil
Philip Morris U.S.A.
Phillips Petroleum Company
Port Authority Trans Hudson (PATH)
Port Authority of New York and New Jersey
PPG Industries Incorporated
Procter & Gamble Company
Public Service Electric & Gas Co.
Puerto Rico Electric Power Authority
Quaker Oats Company
Raleigh Mine and Industrial Supply
Ralston Purina Company
Raytheon Company
Reynolds Metals Company
River Hill Coal Company Incorporated
Roadway Express Incorporated

Roche Products Incorporated
Rochester Gas and Electric Corp.
Rockwell International Corporation
Rohm & Haas Company
Rouge Steel Company
Rutgers University
S C Johnson & Son Incorporated
San Diego State University
Santa Fe Pacific Coal Corporation
Saturn Machine & Welding Co. Inc.
Saudi Arabian Airlines Incorporated
Saudi Petrochemical Company
Savannah Electric and Power Co.
Sea World
Shaw Industries Ltd.
Shell Oil Company
Southern Peru Copper Corporation
Southwest Airlines Company
State Farm Insurance Company
Stone Container Corporation
Taiwan National Police Administration
Taiwan Power Company
Taubmann Company
Tenneco Incorporated
Tennessee Gas Pipeline Company
Tennessee Valley Authority (TVA)
Texaco Pipeline Incorporated
Texas Eastern Pipe Line Corporation
Texas Instruments Incorporated
Texas State University
Thai-Petrochemical Industries
The Timken Company
TU Services Incorporated
TXY Energy
Tyson Foods Incorporated
Unicom Incorporated
Union Carbide Corporation
United Parcel Service of America
United Technologies Corporation
Universal Electronics Co. Inc.
Universal Maritime Service Corp.
University of Alabama, Birmingham
University of Arkansas
University of Connecticut
University of Delaware
University of Houston
University of Illinois of Chicago
University of Maryland
University of Michigan
University of New Hampshire
University of North Carolina
University of Pennsylvania
University of the Pacific
University of Pittsburgh
Universal Parts Corporation
Universal Studios Florida
Universal Telephone Supply Inc.
U.S. Airforce
U.S. Army
U.S. Department of Alcohol, Tobacco, and Firearms
U.S. Navy
U.S. Treasury
USX Corporation
Vicom Incorporated
Villanova University
Walt Disney World Company
Washington State University
Washington Steel Corporation
Westinghouse Electric Corporation
Westvaco Corporation
Weyerhaeuser Company
Wheeling Pittsburgh Steel Corporation
Wierton Steel Incorporated
Willamette Industries Incorporated
Wisconsin Electric Power Company
Wisconsin Natural Gas Company
Xerox Corporation
Yale University