| Afton Chemical GmbH |
| Afton Chemical Ltd. |
| AGRINOL CLL SIE |
| Amoco Lubricants |
| Anderol BV |
| Antwerp Lion Oil Works N.V. |
| Asbury Graphite & Carbons NL B.V. |
| Ashland Inc |
| Asiajuleh Co |
| Axel Christiernsson |
| Axel Christiernsson International AB |
| Axel France |
| Azmol British Petrochemicals |
| Belgin Madeni Yaglar TIC VE SAN A.S. |
| BfB Oil Research |
| BHP Petroleum |
| Biosynthetic Technologies |
| BP Amoco Company |
| BP Europa SE |
| Brugarolas S.A. |
| C.H. Erbslöh GmbH & Co. KG |
| C.S.I. |
| Caltex Company |
| Cargo Oil AB |
| Carl Bechem GmbH |
| Castrol International |
| Chemicolloid Laboratories |
| Chevron Belgium n.v. |
| Ciba Speciality Chemicals |
| CITGO Petroleum |
| Clariant International |
| Climax Molybdenum UK Ltd. |
| Condat SA |
| Conoco |
| Consultant |
| Consultant |
| Croda |
| Danoil Energy Ltd |
| Delkol - Oiled To Perfection |
| Delta Rail, Utrecht, Netherlands |
| DONG Energy |
| Dow Corning GmbH Molykote |
| Dr. Tillwich GMBH |
| DuPont Lubricants |
| DV Petróleos de Venezuela |
| Elco Corporation |
| Eldon's SA |
| Engen Petroleum Ltd. |
| ENI S.p.A. |
| Ergon Europe MEA Inc. |
| Ethyl Corporation |
| Fabrika Maziva FAM A.D. |
| Fastart Lubricants |
| FedChem |
| Fettekno Oy |
| Fluid-Bag Ltd |
| Fragol AG |
| Fuchs Lubricants Australasia |
| Fuchs Lubritech GmbH |
| Fuchs Schmierstoffe GmbH |
| Fuerst Day Lawson |
| Functional Products Inc |
| Fundación Tekniker |
| GKN Driveline International GmbH European Materials Laboratory |
| Global Lubricants Ltd. |
| GR Produkter AB |
| Hangzhou Sungate Chemical Co. Ltd. |
| Harrison Manufacturing Company Pty.Ltrd |
| Honary Enterprises |
| Imperator |
| Imperial College London Tribology Group |
| INEGI/CETRIB |
| Infineum International Ltd. |
| InS Services |
| Interflon BV |
| Intesmo |
| Ironsides Lubricants Ltd. |
| Italmatch |
| ITS Testing Services (Intertek) |
| Jesco Products |
| Jet-lube Products |
| Kalpesh Enterprise LLC |
| Kemat |
| King Industries Inc. |
| Kirei Chemical Ltd |
| KLT |
| Klüber Lubrication München SE & Co. KG |
| KSM PROTEC Ltd. |
| Kuwait Petroleum Research & Technology BV |
| Kyodo Yushi Greases |
| Lanxess |
| Lavollée-Chimie |
| Lotos Oil Sp. z o.o. |
| LPC S.A. |
| LPC-CYCLON |
| LUBCON Lubricant Consult GmbH |
| Lubes 'n' Greases |
| Lubrication Engineers International |
| Lubriplate Lubricants |
| Luoyang Shenyu Molybdenum Co. Ltd. |
| Mato GmbH & Co. KG |
| Matrix Specialty Lubricants BV |
| Matsen Chemie AG |
| MJ Tribology |
| Mobil Corporation |
| Mol-Lub Ltd. |
| MPC's Catalog of Products |
| Nator Lubrication (Shangai) Co. Ltd |
| New Tech Lubes Ltd. |
| NILS A.G. |
| NSF International |
| NTN-SNR |
| Nyco S.A. |
| Nye Lubricants |
| Nynas AB |
| Nynas Petroleo S.A. |
| Nynas-Technol HandelsGmbH |
| Oelcheck GmbH |
| Olipes S.L. |
| Optimol Instruments Prueftechnik GmbH |
| Orlen Oil sp. Z.o.o. |
| Oy Teboil AB |
| Patech Fine Chemicals Co. Ltd |
| Peter-Paul Mittertreiner |
| Petrico Limited |
| Petro-Canada Europe Lubricants Ltd. |
| Petróleos de Portugal, Petrogal S.A. |
| PLI, Inc |
| Quaker State |
| R.S. Clare & Co. Ltd. |
| Rhenus Lub |
| Rhenus Lub GmbH & Co. KG |
| Rocol Lubricants |
| Royal Lubricants |
| Setral Chemie GmbH |
| Shandong Hongxing Chemical Co.Ltd. |
| Shanghi Naco Lubrication Co., Ltd. |
| Shell Global Solutions Deutschland GmbH |
| Shell Lubricants Switzerland AG |
| SIP Ltd |
| SKF ERC |
| SKF GmbH |
| SKF Lubrication Systems Germany AG |
| SKF Maintenance Products |
| SKF QTC |
| SLICK 50 Main Page |
| Slider S.A. |
| Sogelub NV |
| Solvay Specialty Polymers Italy S.p.A. |
| Songxian Exploiter Molybdenum Co. Ltd. |
| Southwestern Petroleum Corporation |
| Specac |
| Spirel S.A. |
| SQM Chemicals Europe |
| Statoil (now called equinor) |
| Stratco Global Companies |
| Technische Akademie Esslingen |
| Texaco |
| Thermal-Lube Inc. |
| Total Lubricants plant Beverwijk BV |
| Total Lubrifiants |
| Tribology Testing Labs |
| Tribotecc GmbH |
| TUNAP Industrie Chemie GmbH & Co. Produktions KG |
| UNIK Oil |
| Uniqema |
| United Oil Products |
| United Oil Products UOP |
| University of Twente WB/TMT/TR |
| Valvoline |
| Van Meeuwen Lubrication bv |
| Vanderbilt Worldwide |
| Verila Lubricants JSC |
| Verkol S.A. |
| Vickers Oil |
| Viscol SpA |
| Wehrwissenschaftliches Institut für Werk-, Explosiv- und Betriebsstoffe |
| Wladoil |
| Xinya Lubritech Hangzhou Co., Ltd. |
| Zeller + Gmelin GmbH & Co KG |
