| 1 | PetroChoice | | USA |
| 2 | Bio-Lub Canada | | USA |
| 3 | Frisco Manufacturing | | USA |
| 4 | Florida Chemical Supply Inc. | | USA |
| 5 | Phillips 66 | | USA |
| 6 | Suncor Energy Products Partnership | | USA |
| 7 | Schaeffer's Specialized Lubricants | | USA |
| 8 | Wallover Oil Co. | | USA |
| 9 | Mil-Spec Industries | | USA |
| 10 | Biosynthetic Technologies | | USA |
| 11 | Shell Lubricants | | USA |
| 12 | Chevron Corp. | | USA |
| 13 | Speedol | | USA |
| 14 | Lubrication Engineers | | USA |
| 15 | SAE Manufacturing Specialties Corp | | USA |
| 16 | BioBlend Renewable Resources LLC | | USA |
| 17 | Highside Chemicals | | USA |
| 18 | Royal Purple LLC | | USA |
| 19 | Polar Industrial Lubricants LLC | | USA |
| 20 | Visco Inc. | | USA |
| 21 | Lubriplate Lubricants Co. | | USA |
| 22 | Tomlin Scientific Inc. | | USA |
| 23 | Moore & Balliew Oil Co. Inc. | | USA |
| 24 | Oil Service Inc. | | USA |
| 25 | Amalie Oil Company | | USA |
| 26 | Petro-Canada Lubricants Inc. | | USA |
| 27 | ExxonMobil | | USA |
| 28 | Oil Center Research Inc. | | USA |
| 29 | Puma Lubricants | | USA |
| 30 | Phillips 66 Lubricants | | USA |
| 31 | McLube | | USA |
| 32 | South Coast Terminals Inc. | | USA |
| 33 | Pinnacle Oil Holdings LLC | | USA |
| 34 | Benz Oil Inc. | | USA |
| 35 | Motosel Industrial Group Inc. and MotoCare International LLC | | USA |
| 36 | Idemitsu Lubricants America | | USA |
| 37 | Citgo Petroleum Corp. | | USA |
| 38 | Advanced Lubrication Specialties | | USA |
