SIC code 61100
Wired telecommunications activities
3,996 UK companies classified under this code.
Search companies with SIC 61100What SIC code 61100 covers
SIC code 61100 is the UK Standard Industrial Classification for Wired telecommunications activities. It falls under SIC section J — Information & Communication, division 61. Companies record it at Companies House to describe what they do, and it is one of up to four SIC codes a company can hold.
Wired telecommunications activities — operators of fixed-line phone, broadband and cable networks, including the firms laying and running fibre to homes and businesses. This is a capital-heavy field dominated by major network operators and altnets, with smaller resellers and local ISPs alongside. Neighbours include wireless and satellite telecoms and broadband installation contractors.
Where these companies are based
Active companies under SIC code 61100 cluster most in:
- London 669
- Manchester 63
- Dummer 59
- Liverpool 56
- Birmingham 55
- Glasgow 52
Example companies with SIC code 61100
A sample of recently-incorporated active companies classified under 61100:
- Flaming It Ltd
- Infenex Networks Ltd
- Abz Technical & Offshore Ltd
- Tynenet Communications Limited
- Thrucom Limited
- Cable-Wave Networks Ltd
- White Cable Solutions Ltd
- Saiming Limited
- Titanium Fibre Ltd
- G.Network Holdings 2 Limited
- Ik Infrastructure Ltd
- Bradcom Ltd
Related SIC codes
- 61200 Wireless telecommunications activities
- 61300 Satellite telecommunications activities
- 61900 Other telecommunications activities
Frequently asked
What is SIC code 61100?
SIC code 61100 is the UK Standard Industrial Classification (SIC 2007) for "Wired telecommunications activities". It is the code a company records at Companies House when this is its business activity, and it sits within SIC section J — Information & Communication.
How many companies use SIC code 61100?
3,996 companies are currently classified under SIC code 61100 on the UK register, most commonly in London, Manchester, Dummer.
How do I find companies with SIC code 61100?
On Company Shark, search the live Companies House register by SIC code 61100, then narrow by location and incorporation date and export the list with director details. SIC code filtering is available on the Business and MAX plans.
Is SIC code 61100 the right code for my company?
SIC codes are self-reported. Pick the code that most closely matches your main activity — 61100 covers "Wired telecommunications activities". You can record up to four SIC codes, and update them on your annual confirmation statement.
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