| | | 
| AIM Healthcare Services, Inc.
- Franklin, TN / USA -
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| ArcelorMittal
- Luxembourg / Luxembourg -
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| Bauer AG
- Schrobenhausen / Germany -
|
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| Beiersdorf AG
- Hamburg / Germany -
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| Benteler AG
- Paderborn / Germany -
|
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| Canadian Natural Resources Ltd.
- Calgary / Canada -
|
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| CeramTec AG
- Plochingen / Germany -
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| Cherry GmbH
- Auerbach / Germany -
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| Danisco A/S
- Copenhagen / Denmark -
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| DATEV eG
- Nuremberg / Germany -
|
| | | 
| Dresdner Bank AG
- Frankfurt am Main / Germany -
|
| | | 
| Edeka AG
- Hamburg / Germany -
|
| | | 
| Energie Ouest Suisse
- Lausanne / Switzerland -
|
| | | 
| Pfleiderer Europoles
- Neumarkt / Germany -
|
| | | 
| OHG FEGRO/SELGROS Gesellschaft für Großhandel mbH & Co
- Neu-Isenburg / Germany -
|
| | | 
| Festo
- Esslingen / Germany -
|
| | | 
| Friesland Dairy & Drinks
- Ede / Netherlands -
|
| | | 
| Grohe AG
- Hemer / Germany -
|
| | | 
| Geberit Verwaltungs AG
- Rapperswil / Switzerland -
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| | | 
| Gerling Konzern
- Cologne / Germany -
|
| | | 
| Hornbach Baumarkt AG
- Bornheim bei Landau / Germany -
|
| | | 
| Iberdrola
- Bilbao / Spain -
|
| | | 
| ING-DiBa - Allgemeine Deutsche Direktbank AG
- Frankfurt / Germany -
|
| | | 
| JSC Halyk Bank of Kazakhstan
- Almaty / Republik of Kazakhstan -
|
| | | 
| Käserei Champignon Hofmeister GmbH & Co. KG
- Lauben / Germany -
|
| | | 
| Krane Optic
- Rheda-Wiedenbrück / Germany -
|
| | | 
| Leica Geosystems AG
- Heerbrugg / Switzerland -
|
| | | 
| LUKOIL oil company
- Moscow / Russia -
|
| | | 
| Mainova AG
- Frankfurt am Main / Germany -
|
| | | 
| Manpower GmbH & Co. KG
- Frankfurt am Main / Germany -
|
| | | 
| Marktkauf Holding GmbH
- Bielefeld / Germany -
|
| | | 
| Melitta Haushaltsprodukte GmbH & Co. KG
- Minden / Germany -
|
| | | 
| Merck KGaA
- Darmstadt / Germany -
|
| | | 
| Mittelbayrischer Verlag KG
- Regensburg / Germany -
|
| | | 
| mobilkom austria
- Vienna / Austria -
|
| | | 
| Nestlé
- Vevey / Switzerland -
|
| | | 
| Netafim Ltd.
- Tel Aviv / Israel -
|
| | | 
| Nürnberger Versicherungsgruppe
- Nuremberg / Germany -
|
| | | 
| Nycomed International Management GmbH
- Zurich / Switzerland -
|
| | | 
| Paul Hartmann AG
- Heidenheim / Germany -
|
| | | 
| Penny-Markt GmbH
- Cologne / Germany -
|
| | | 
| Pfleiderer AG
- Neumarkt / Germany -
|
| | | 
| Promarkt
- Cologne / Germany -
|
| | | 
| Rehau AG + Co
- Rehau / Germany -
|
| | | 
| REWE-Zentral-Aktiengesellschaft
- Cologne / Germany -
|
| | | 
| REWE - Informations - Systeme GmbH
- Cologne / Germany -
|
| | | 
| Rheinmetall AG
- Düsseldorf / Germany -
|
| | | 
| RHI AG
- Vienna / Austria -
|
| | | 
| ROHDE & SCHWARZ
- Munich / Germany -
|
| | | 
| s.Oliver Bernd Freier GmbH & Co. KG
- Rottendorf / Germany -
|
| | | 
| SABMiller Russia
- Moscow / Russia -
|
| | | 
| Schaeffler KG
- Herzogenaurach / Germany -
|
| | | 
| SGL INFORMATION-SERVICES GmbH
- Augsburg / Germany -
|
| | | 
| Stadtverwaltung Solingen
- Solingen / Germany -
|
| | | 
| Sparkasse Erlangen
- Erlangen / Germany -
|
| | | 
| Stadtsparkasse München
- Munich / Germany -
|
| | | 
| T-Mobile
- Bonn / Germany -
|
| | | 
| TAKATA-PETRI AG
- Aschaffenburg / Germany -
|
| | | 
| tegut... Gutberlet Stiftung & Co.
- Fulda / Germany -
|
| | | 
| toom BauMarkt GmbH
- Cologne / Germany -
|
| | | 
| toom Markt
- Cologne / Germany -
|
| | | 
| ThyssenKrupp Nirosta GmbH
- Krefeld / Germany -
|
| | | 
| Tognum AG
- Friedrichshafen / Germany -
|
| | | 
| Toshiba Medical Systems Europe
- Zoetermeer / Netherlands -
|
| | | 
| VCC Complete Construction Management
- Little Rock, AR / USA -
|
| | | 
| Verlagsgruppe Handelsblatt
- Düsseldorf / Germany -
|
| | | 
| Wacker Chemie AG
- Munich / Germany -
|
| | | 
| Ypsomed AG
- Burgdorf / Switzerland -
|
| | | 
| Zürcher Kantonalbank
- Zurich / Switzerland -
|