Agilent Technologies INC.
Allianz Hungária Insuarnce Closed Co. Ltd.
Antenna Hungária Ltd.
Avaya
AVE Zöldfok Ltd.
Budapest Bank Ltd.
Budapest Stock Exchange Ltd.
Central Office for Administrative and Electronic Public Services
Central West Hungary Transport Centre Ltd.
Cisco
Cramer Systems
Crnogorski Telekom
Deutsche Telekom
Dorsum Ltd.
DSS Consulting Inc.
E.ON Hungary Group
Financial Supervisory Authority
GAMAX Inc.
Generali Providencia Insurance Ltd.
Hellmann
HP
Hrvatski Telecom
Hungarian Electricity IT Ltd.
Hungarian Electricity Ltd.
Hungarian Electricity Net Ltd.
Hungarian Intellectual Property Office
Hungarian National Asset Management Inc.
Hungarian Post
Hungarian State Railways
Hungarian Telekom
IBM
INA
InfoVista S.A.
INTRACOM S.A. HOLDINGS
INTRASOFT International S. A.
Invitel Telecommunications Ltd.
KELER Ltd.
Lounge Design Inc.
Micromuse Inc.
Microsoft
MOL
MQSoftware Inc.
National Ambulance Emergency Service
National Development Agency
National Infocommunications Services Company Ltd.
National Tax and Customs Administration
National Waste Management Directorate
Oracle
OTP Ltd.
Persecutor Inc.
Porsche Bank Ltd.
Porsche Hungária Inc.
Remedy (BMC)
Rittal Inc.
Riyad Bank (Saudi Arabia)
SAP
State Asset Records Ltd.
Sun Microsystems
Telenor Hungary Ltd.
Teradyne
TIBCO Software Inc.
UPC Hungary Inc.
Vodafone Hungary Ltd.