ABB
AES Placerita
Alpart
Amalgamated Sugar Company
American Cyanamid
Amoco
Aramco
Aristech Chemical Corporation
Ashland Oil
Atlantic Richfield Co.
ARCO Alaska
AKT Systems, Inc.
Canadian Cellulose
Carter Burgess
C.F. Braun
CF Industries
CF Limited
Champion International
C.I.L. Inc.
CONDEA Vista Company
Container Corporation of America
Continental Insurance Company
Coastal
Cranston Print Works
Dofasco
Domtar
Doswell Limited Partnership
Douglas Peterson & Assoc
Dow Chemical
Fireman's Fund Insurance Co.
Forerunner
Fluor
FM Global
FMC Corp.
Frontier Refining
Geneva Energy
Georgia Gulf
Getty
Gresham, Smith and Partners
Gute Hoffnungshütte
H2W United
Hartford Steam Boiler Insurance Comp.
Harza
Hawaiian Commercial & Sugar Co.
Huntsman Polypropylene Corp.
Hydro Agri
Idusta GmbH
Irving Oil Limited
J.C. Higgins Corp.
Jefferson Smurfit
Kaiser Aluminum
Katy-Seghers
Kiefer & Voss
La Roche
LDIS
Lloyds of London
LTV Steel
Lyondell Petrochemicals
MAN-GHH
MAN-Energy
Maxson Young
Menasha Utilities
MTI
Tuthill Murray
Novacor
Occidental Chemical Corp.
Oxy Mar
Parker, Messana & Associates, Inc.
PPG
Rohm & Haas
Samuel Engineering
Sasol
Shell Oil
Siemens Energy
Siemens Solar
J.R. Simplot
Sohio
Sopogy
Suncor
Swift Textiles
Texas Petro Chemicals
Tosco
Travelers
Utility Engineering
URS
U.S. Steel Corp.
Vicksburg Chemical Co.
Vistron