Telecoms & connectivity

Guernsey's full-service telecommunications provider, offering mobile, fibre broadband, landline, and enterprise services as a subsidiary of JT Group.

The Channel Islands' largest IT services company, offering managed IT, cloud, cybersecurity, and connectivity services.

Guernsey's main telecommunications provider, offering mobile, broadband, landline, and IT services under the Sure by Beyon brand.

Sure's B2B division, providing connectivity, cloud, and managed services across the Channel Islands and Isle of Man.

Channel Islands MVNO launched in 2026, offering no-contract SIM and device plans on Sure's network in Guernsey and Jersey.

Guernsey telecommunications company offering business telephony, structured cabling, and voice/data solutions across the Bailiwick.

Managed IT and cyber security services company, part of the Zenzero group, with offices in Guernsey, Jersey, and Dubai.

Alderney computer shop and IT services provider, trading as TreeRiver Computers under Island Computers since 1989.

IT support and cybersecurity company established in 1990, serving businesses and home users across the Channel Islands.

IT support shop and member of the Alderney Chamber of Commerce, specialising in computer repair, hosting, email, telecoms, and web development in Alderney.