| Name | Type | Sector | Country | Joined On |
|---|---|---|---|---|
| Flughafen Stuttgart GmbH | Company | Travel & Leisure | Germany | 08-Feb-2011 |
| SMA Solar Technology AG | Company | Alternative Energy | Germany | 21-Jan-2011 |
| EnBW Energie Baden-Wurttemberg AG | Company | Electricity | Germany | 23-Dec-2010 |
| ENTEGA AG | Company | Electricity | Germany | 21-Dec-2010 |
| MAN Truck & Bus SE | Company | Industrial Engineering | Germany | 06-Dec-2010 |
| Industrieverband Textil Service - intex e.V. | Business Association | Not Applicable | Germany | 10-Nov-2010 |
| STI - Gustav Stabernack GmbH | Company | Industrial materials | Germany | 03-Nov-2010 |
| Knorr-Bremse Group | Company | Automobiles & Parts | Germany | 01-Oct-2010 |
| Hochschule Dusseldorf - University of Applied Sciences | Civil Society Organization & Other | Not Applicable | Germany | 01-Oct-2010 |
| Giesecke+Devrient GmbH | Company | Technology Hardware & Equipment | Germany | 27-Sep-2010 |
| CEWE Stiftung & Co.KGaA | Company | General Industrials | Germany | 23-Sep-2010 |
| Rudolf Brokamp GmbH & Co. KG | Small or Medium-sized Enterprise | Electronic & Electrical Equipment | Germany | 14-Sep-2010 |