• Alcatel-Lucent
• APT Netherlands, Portugal, Austria, Greece & Switzerland
• AT&T
• AUDI (VAG)
• Arthur D Little Consulting
• BaE Defense
• Basf
• BMPT Germany (Government)
• BMFT Germany (Regulation)
• BMW
• BT
• Cable & Wireless
• Cap Gemini
• Cisco
• CITC Regulator of KSA
• Connect Austria in Austria
• Cosmote Greece
• Credit Suisse Bank Europe
• CSC
• Czech Telecom
• Dell
• Deutsche Telecom
• DiAx switzerland
• DOD Dept of Defense USA
• EDS
• Enertel Netherlands
• Ericsson
• E Plus
• EU Regulatory committees
• France Telecom
• Google
• Government of China
• Government of Kuwait
• Government of Dubai
• Hewlett Packard (HP)
• HKTT Hong Kong
• Iberdrola Energy, Spain and EU
• IBM Corporation and Global Services
• Intel
• I.T.T
• KAEC Smart City KSA
• KEC Smart City KSA
• Korea Telecom
• KPN
• LCC/Telecom ventures
• LCC South Africa
• Level 3 UK & Germany
• Libertel Netherlands
 

• Lufthansa
• Marconi Defense
• META Group
• Microsoft Corporation, EU and USA
• MSN
• Ministry of Defense UK
• Mobilcom Germany
• Nokia
• Nokia Siemens Networks
• Nortel
• NTL
• NTT DoCoMo
• NYNEX
• O2
• Orange
• PA Consulting
• PacBell, Bellwest
• Princess Yachts
• Reuters
• SAS Astra Satellites
• SAGIA KSA
• Saudi Airlines
• Singapore Government
• Siemens
• SKY Television
• Smart Village, Egypt
• Smart Internet City, Giza
• Sony
• Sprint/Nextel
• SUN Microsystems, EMEA and USA
• Sunseeker Yachts
• T-Mobile, T- Systems EMEA
• Telefonica (Fixed and Mobile)
• Telemach (Quadplay operator Slovenia)
• Telenor
• Telewest
• Telfort Netherlands
• TIM
• Timex
• Texas instruments
• UBS Bank Switzerland
• Viag and RWE Energy, Germany
• Vimpelcom
• Vodafone
• Wind
• Yahoo!