- AMSOIL INC
- Bharat Petroleum Corporation Limited
- BP p.l.c. (Castrol)
- Chevron Corporation
- China Petrochemical Corporation (Sinopec)
- Exxon Mobil Corporation
- FUCHS
- Gazpromneft - Lubricants Ltd.
- Gulf Oil Lubricants India Ltd (Hinduja Group)
- HPCL
- Illinois Tool Works Inc.
- Indian Oil Corporation Ltd
- JXTG Nippon Oil & Energy Corporation
- Kluber Lubrication
- LUKOIL
- Motul
- Petrobras
- PETRONAS Lubricants International
- Phillips 66 Company
- PT Petramina (Persero)
- Repsol
- Royal Dutch Shell
- SK Lubricants Co. Ltd
- Tide Water Oil Co. (India) Ltd (Veedol International Ltd)
- Total
- Valvoline LLC