Four providers cover business voice. Two are arms of one operator — Sure's consumer and B2B divisions, both rooted in the 1896 States Telephone Department and both ISO 27001-certified, now trading as Sure by Beyon since October 2025. JET Communications (1999, Vale) is an Avaya partner; Island Computers serves Alderney. —
St Peter Port·Service
Part of Beyon (formerly Batelco)
✦130-year heritage (1896)
Sure's B2B division, providing connectivity, cloud, and managed services across the Channel Islands and Isle of Man.
St Peter Port·Service
Part of Beyon (formerly Batelco Group, Bahrain)
✦130-year heritage (1896)
Guernsey's main telecommunications provider, offering mobile, broadband, landline, and IT services under the Sure by Beyon brand.
Vale·Service·Est. 1999
Part of JET Communications Limited (Jersey HQ: The Powerhouse, Queens Road, St Helier, Jersey JE4 8NY)
Guernsey telecommunications company offering business telephony, structured cabling, and voice/data solutions across the Bailiwick.
Alderney·Service
IT support shop and member of the Alderney Chamber of Commerce, specialising in computer repair, hosting, email, telecoms, and web development in Alderney.