Categorised here are telecommunications companies in the UK, service providers, operators, equipment suppliers and other telecom related services.
- Analysys Mason - Telecom company that specialised in telecoms, media and technology (TMT), headquartered in London, UK.
- Avaya Inc - Specialised in communication systems, applications, and services.
- Blue Square Offices - Blue Square Offices can provide a range of business services including telephone answering and registered office addresses.
- CCA Global - Provides up-to-date and archived information on the contact centre industry.
- Cloud Telephones - VoIP provider offering VoIP systems to business across the United Kingdom.
- Contact Number UK - Provides usable contact numbers for companies that are difficult to contact by telephone and particularly those with phone number.
- Corporate - A distributor of headsets, handsets, audio conferencing, call recording and voice and data installation equipment.
- Direct Number - Customer services contact telephone numbers for every major business and organisation in the UK.
- Eurocoms Ltd - Provides a cabling and network solutions service.
- First:Telecom - A communication company in the United Kingdom.
- FLA - A manufacturer of masts and towers for the telecommunications industry and supporting steelwork and accessories.
- hSo - Provides leased lines, internet access, corporate WANs, telephony and cloud hosting services.
- Kcom - A provider of communications solutions to businesses and public sector organisations.
- Midland Communications - Midland Communications specialise in the field of business communications.
- Midland Telecom - Provides telecoms and broadband internet hardware installation services.
- Mitel - Manufacturers of business telephone systems and ip telephony solutions in Europe.
- Ofcom - Provides television, radio, telecommunications and wireless communications services.
- Quadra - Provides telecom products and services to UK businesses.
- Telecoms World - Telecoms World supply 0800 numbers, 0845 numbers, 0333 numbers, 0844 numbers, 0871 numbers, call routing and call record.
- United Connect - A telecommunications company specialising in long distance phone calls and products.