Valero ExxonMobil
Intertek
Goodyear ConocoPhillips Citgo Petroleum
Flint Hills Resources Total Petrochemicals USA Ohio Valley Energy
Atmos Energy Praxair Lyondell Basell
BF Goodrich Inspectorate America Proctor & Gamble
DuPont Tesoro Refinery INEOS
Shell Oil Products US Magellan Midstream Partners, LP PPG Industries
Cobra Pipeline ATOFINA Petrochemicals DPL Energy, LLC
Ecole Polytechnique de Montreal Gas Analytical Services, Inc. BASF Corporation
Flow Polymers, Inc. Apex Advanced Technologies Nalco Chemical Company
Akzo Nobel Owens Corning CHS Refining
Sherwin-Williams River Recycling, Inc. Orwell Natural Gas Company
Maple Leaf Distillers, Inc. Irving Oil Limited IDI Composites International
GE Lighting Dynegy Midstream Services Custom Solutions Group LLC
AOC The Scotts Company Quantum Analytics, Inc.
Virent Energy Rentech, Inc. Alcoa Industrial Chemicals
Con-Test Analytical Laboratory Omega Diagnostics, LLC Syntonix Pharmaceuticals
Process Analytical Applications Messier-Bugatti Lubrizol
IGN Medical, LLC Curtis Metal Finishing, Inc. Centauri Technologies, LP
Rolls-Royce Fuel Cell Systems Southeast Nonwovens Southern Petroleum Laboratories
Waste Management, Inc. KB Labs Ohio Edison Company
Amspec, LLC