• Bundeswehr German Armed Forces
• Bundeswehr Office for Defence Planning
• Bw Bekleidungsmanagement (German Armed Forces Clothing Services)
• Bw Fuhrpark Service (German Armed Forces Fleet Services)
• BWI
• DFS Deutsche Flugsicherung (German Air Traffic Control)
• Federal Office for the Human Resources Management of the Bundeswehr BAPersBw
• Federal Office for the Infrastructure, Environmental Protection and Services of the Bundeswehr (BAIUDBw)
• Federal Office of Bundeswehr Equipment, Information Technology and In-Service Support (BAAINBw)
• Federal Ministry of Defence
• Heeresinstandsetzungslogistik (HIL - German Army Logistics Center)

• NAPMA

• OCCAR-EA

• Österreichisches Bundesheer (Austrian Armed Forces)

• City and District of Aachen
• City of Bochum
• Data Processing Center Hesse
• Deutsche Welle Broadcasting
• Environmental Agency of Bavaria
• Federal Agency for Agriculture and Food
• Federal Agency for Nature Conservation
• Federal Agency for Water Management
• Federal Center for Information Technology – ITZBund
• Federal Employment Agency
• Federal Foreign Office
• Federal Institute for Drugs and Medical Devices
• Federal Ministry for Family Affairs, Senior Citizens, Women and Youth
• Federal Ministry for the Environment, Nature Conservation, Building and Nuclear Safety (BMUB)
• Federal Ministry for Economic Affairs and Energy (BMWi)
• Federal Ministry of Economic Cooperation and Development (BMZ)
• Federal Ministry of Labour and Social Affairs (BMAS)
• Federal Ministry of Transport and Digital Infrastructure
• Federal Office for Building and Regional Planning
• Federal Office for Information Security (BSI)
• Federal Office for Migration and Refugees (BAMF)
• Federal Office of Administration
• Federal Office of Economics and Export Control
• German Bundestag
• German Social Accident Insurance (DGUV)
• German Institute of Medical Documentation and Information (DIMDI)
• GVS Healthcare
• Institute for Federal Real Estate
• ITEOS (AöR)
• KKH Insurance
• Ministry of Finance of Baden-Wuerttemberg
• Münchner Verein Insurances
• Municipal Insurance Association of Bavaria
• NDR Broadcasting
• Rhineland Regional Authority
• Regional Tax Office Lower Saxony
• State Accident Insurance of Thuringia
• State Capital Hannover
• State Capital Munich
• State Construction and Real Estate Agency North Rhine-Westphalia
• State Office for Surveys and Geographical Information of Rhineland-Palatinate
• State Office of Statistics and Data Processing of Bavaria
• Statistical State Office of Hamburg and Schleswig-Holstein
• Statistical State Office of Hesse
• Statistical State Office of Thuringia
• SPD - Social Democratic Party of Germany
• SWM Munich City Utilities
• Trade Association Wood and Metal (BGHM)
• VIFG - Verkehrsinfrastrukturfinanzierungsgesellschaft mbH
• WDR Broadcasting

Automotive

• AMF Bruns
• BMW
• CLAAS
• Continental
• Daimler
• Daimler Truck
• Formel D
• Hella
• Knorr Bremse
• Komatsu
• Mahle
• MAN
• Mann+Hummel
• Neoplan
• Porsche
• TecAlliance
• Schaeffler
• Volkswagen
• ZF Friedrichshafen

​Finance & Insurance

• AOK
• ARAG
• Commerzbank
• Deutsche Börse
• Deutsche Bundesbank
• DEVK
• Finanz Informatik
• Generali
• Hauck+Aufhäuser
• KfW
• LBS
• Münchener Rück
• Postbank
• Raiffeisen Schweiz
• Renell Bank
• R+V Versicherung
• Schufa
• Santander
• Toyota Kreditbank
• Union Investment

Commerce

• Handelshof
• Media Saturn
• Migros
• Rewe Group

Industry

• BASF
• Bayer
• Bosch
• Brenntag
• E.ON
• Emmi Group
• Evonic
• Henkel
• Koenig & Bauer
• Kärcher
• Kion Group
• Krones
• KSB
• LEMO
• Linde
• Lürrsen Werft
• Rheinmetall
• Sartorius
• Schütz
• Siemens
• Sika
• SMS group
• Stihl
• tesa
• TROX
• TÜV Nord
• TÜV Rheinland

IT & Telecommunications

• 5Flow
• Deutsche Telekom
• Inform
• O2
• United Internet (1&1)

Transportation & Logistics

• Berge & Meer
• Dachser
• Deutsche Bahn
• Deutsche Post DHL
• Euro Pool Systems
• Hamburg Airport
• Kühne + Nagel
• Lufthansa
• Robinson
• TUI