About SIC Navigator
SIC Navigator (sicnav.org.uk) is a free reference for UK Standard Industrial Classification (SIC) codes. It lists every code in the official SIC 2007 structure used by Companies House, and — where we have indexed a sector — shows UK companies filed under that code with turnover, employees, cash and other figures extracted from public accounts.
What is a SIC code?
A SIC code describes a company’s main business activity. When a UK company files annual accounts or confirms its nature of business, Companies House records one or more five-digit codes (for example 59112 — Video production activities or 70210 — Public relations and communications activities). The same classification is used across government statistics and the register.
What you can do here
- Look up any SIC code — search or browse all 731 codes by section and description on the homepage.
- Open a sector dashboard — select a code to filter and sort companies by turnover, employees, cash, account type and more.
- Research a market — see which businesses are active in a SIC code and compare filing data in one sortable view.
- Find your code — read descriptions to match your activity to the correct SIC 2007 entry before filing.
Where the data comes from
Company names, accounts and director names come from the public Companies House register and filed iXBRL documents. SIC code definitions follow the UK SIC 2007 standard. Contains public sector information licensed under the Open Government Licence v3.0. See our licence and attribution page for details.
Turnover and employee figures are taken from filed accounts where companies report them. Where a filing does not declare turnover, we may show an estimated figure derived from public filing data — always check the original filing on Companies House for official values.
Who this site is for
SIC Navigator is aimed at anyone who needs a clear UK SIC code list with practical context: business owners, accountants, researchers, journalists and analysts mapping the UK company population by sector. It is an independent site — not operated by Companies House or GOV.UK.
Example SIC pages
59112 Video production 62020 IT consultancy 70210 Public relations 74909 Other professional activities
Contact and privacy
We do not require registration or payment. For how we handle visit data, see the privacy policy.