Pemex
3M
Amp
Air Products
Carrier
Ciba
Corning
DuPont
FMC Technologies
Ford
General Electric
Grace
Nasa
Lockheed Martin
Aramco
Arco
KNPC
Martin Marietta
US Department of Immigration
American Cyanamide
BASF
Chevron
Shell
Exxon
Mobil
Georgia Pacific
WestingHouse
International Paper
Green Giant
Good Year
Uniroyal
Ethyl Corporation
Qatar Petroleum
Occidental Petroleum
Elf Atochem
Jacobs Engineering
Alcoa
Murphy Oil
General Dynamics
US Department of Defense
FDA
Allied Signal
Alcatel
Northland Tool & Electronics
Xenon
Xerox
Valero
Thomson
THG Corporation
Thermo Systems
Swedish Match
Stull Technologies
Stone Containers
Sealed Air
PPG Industries
Pratt & Whitney
Procter & Gamble
Nutro
Northern Telecom
Mokon
Motorola
Merck
Matheson
Mannings
Mallinckrodt
Lucent Technologies
Johnson&Johnson
ITW
Honeywell
Holtec
Gore
GM
GlaxoWellcome
Exal
Dynomax Inc.
Dart
Chrysler
Celanese
CH2M
Carling Technologies
Bihler
Amplex
Westvaco
Virginia Power
United Brands
Union Carbide
United Launch Alliance
Masonite
Hoechst Celanese
Northrop Grumman
Coors
Continental Can
