| Name | Type | Sector | Country | Joined On |
|---|---|---|---|---|
| Symrise AG | Company | Chemicals | Germany | 15-May-2012 |
| DAW SE | Company | Chemicals | Germany | 20-Jan-2012 |
| Menzolit GmbH | Small or Medium-sized Enterprise | Chemicals | Germany | 19-Dec-2011 |
| Rhenus Lub GmbH & Co KG | Small or Medium-sized Enterprise | Chemicals | Germany | 27-Apr-2011 |
| ALTANA AG | Company | Chemicals | Germany | 23-Feb-2010 |
| Evonik Industries AG | Company | Chemicals | Germany | 14-Aug-2009 |
| Heraeus Holding GmbH | Company | Chemicals | Germany | 19-Apr-2007 |
| Wacker Chemie AG | Company | Chemicals | Germany | 06-Apr-2006 |
| BASF SE | Company | Chemicals | Germany | 26-Jul-2000 |