Below are some of the companies Sonet have provided services for

• BT
• NTL
• Chap Cabling
• Marconi
• Siemens
• Maintel
• Cable & Wireless
• Eircom
• Electra-Net UK ltd
• DRD
• DOE
• LANI 2
• Hilton Hotels
• Travel Lodge
• Dungannon Intergrated College
• Kodak
• Arcadia Group
• Lloyds TSB
• Zurich
• Manchester Joint Hospital
• Middlesex University
• Sony Ireland
• Orange
• NI Water Service
• J&J Hasletts
• Money Shop
• NI Trucks
• ShoreTel
• Debenhams
• Glanbia Cheese