- BP PLC
- Chevron Lubricants
- Claas KGaA mbH
- CONDAT Group
- Cougar Lubricants International Ltd
- Exol Lubricants Limited
- Exxon Mobil Corporation
- Frontier Performance Lubricants
- Fuchs Petrolub SE
- Gulf Oil International
- Lubrication Engineers
- Morris Lubricants
- Normac Oils Ltd
- Pennine Lubricants
- Phillips 66
- Repsol
- Royal Dutch Shell PLC
- Rymax Lubricants
- Schaeffer Oil
- Total SA
- Unil Lubricants
- Witham Oil and Paint