Bank and Insurance

• BISZ Zrt. (operates the Central Credit Information System in Hungary)
• CIB Bank Ltd. (member of Intesa Sanpaolo)
• Erste Bank Hungary Ltd. (member of Erste Bank Group)
• Central Clearing House and Depository Ltd.
• K&H General Insurance Co. (member of KBC Group)
• K&H Bank Co. (member of KBC Group)
• MKB Bank Ltd. (member of Bayerische Landesbank)
• OTP Group
• Magyar Cetelem Bank Co. (member of BNP Paribas)

Telecommunications

• Oman Telecommunication Company S.A.O.G.
• Magyar Telekom Plc. (member of Deutsche Telekom)
• Invitel Co. (member of HTCC Group)
• T-Mobile (member of Magyar Telekom)
• Vodafone Hungary Co.
• [origo] Media and Communications (formerly T-online, member of Magyar Telekom)

Industry

• Elcoteq Hungary Ltd.

Pharmaceuticals

• EGIS Pharmaceuticals Plc.

Public Administration

• Information Technology Authority, Oman
• Central Data Processing, Registration and Election Office of the Ministry of Interior
• Office of Immigration and Nationality Ministry of Interior

Education

• Educatio Public Services Company

Professional Services

• HP Enterprise Services (formerly EDS)

Public Utilities

• Waterworks of Budapest