| A1 Telekom Austria AG | Telecommunications | International |
| Commerzbank AG | Financial Services | Germany |
| Deutsche Leasing AG | Financial Services | Germany |
| Deutsche Telekom AG | Telecommunications | International |
| Erste Group | Financial Services | International |
| Eurohypo AG | Financial Services | Germany |
| GESPAG - Oö. Gesundheits- und Spitals- AG | Healthcare | Austria |
| GRAWE Bankengruppe | Financial Services | Austria |
| KELAG AG | Energy Supplier | Austria |
| KfW Bankengruppe | Financial Services | Deutschland |
| Land Nordrhein-Westfalen | Public Services | Deutschland |
| NÖ Landeskliniken Holding | Healthcare | Austria |
| OMV AG | Oil and Gas | International |
| Porr AG | Construction | International |
| Raiffeisen Bank International AG | Financial Services | International |
| Raiffeisenlandesbank Oberösterreich | Financial Services | Austria |
| Sberbank Europe AG | Financial Services | International |
| Schenker und Co AG | Logistics | International |
| Schöllerbank AG | Financial Services | Austria |
| Sparda-Bank Baden-Württemberg e.G. | Financial Services | Deutschland |
| Telekom Deutschland GmbH | Telecommunications | Germany |
| T-Mobile Austria GmbH | Telecommunications | Austria |
| Travi Austria GmbH & Co KG | Tourism | Austria |
| Vodafone D2 GmbH | Telecommunications | International |
| Volksbanken Gruppe | Financial Services | Austria |
| Voltares Energies | Industry | Austria |
