SIC code 61100 covers wired telecommunications activities activities in the UK, with 3,396 active companies currently registered. It falls under Section J (Information and communication) of the UK SIC 2007 classification system. The average company age is 9.6 years.
SIC code 61100 stands for "Wired telecommunications activities" under the UK Standard Industrial Classification (SIC 2007) system. It belongs to Section J — Information and communication. Companies use this code when registering with Companies House to indicate their primary business activity.
There are currently 3,396 active companies registered under SIC code 61100 in the UK, out of 4,026 total registrations (including dissolved companies).
The top locations for companies classified under SIC 61100 are: DUMMER (55). These areas represent the highest concentration of wired telecommunications activities businesses in the UK.
Search, filter, and analyse 3,396 companies classified under this SIC code with AI-powered risk intelligence.
Data sourced from Companies House, HM Land Registry, FCA Register, and 50+ government databases. SIC classification follows the UK Standard Industrial Classification of Economic Activities 2007 (SIC 2007). Last updated: 2026-04-05.