- Afton Chemical
- BASF SE
- BRB International
- Chevron Corporation
- Croda International PLC
- DOG Deutsche Oelfabrik Gesellschaft fur chemische Erzeugnisse mbH & Co. KG
- Dorfketal Chemicals (I) Pvt Ltd
- DOVER CHEMICAL CORPORATION
- Evonik Industries AG
- Infineum International Limited
- JINZHOU KANGTAI LUBRICANT ADDITIVES CO.LTD
- King Industries Inc.
- LANXESS
- Multisol
- R.T. Vanderbilt Holding Company Inc.
- Shepherd Chemical
- The Elco Corporation
- The Lubrizol Corporation
- Wuxi South Petroleum Additives Co. Ltd.