UK SIC Codes: Complete Directory

Browse all 731 UK Standard Industrial Classification codes organised by 21 sections. Covering 5,022,372 active companies registered at Companies House.

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CodeDescriptionCompanies
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CodeDescriptionCompanies
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CodeDescriptionCompanies
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CodeDescriptionCompanies
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CodeDescriptionCompanies
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CodeDescriptionCompanies
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M
CodeDescriptionCompanies
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Frequently Asked Questions

What are UK SIC codes?

SIC codes (Standard Industrial Classification) are 5-digit codes used by Companies House and HMRC to classify the business activities of UK companies. Every registered company must provide at least one SIC code that describes its main activity.

How many SIC codes are there in the UK?

There are 731 SIC codes in the UK classification system, organised into 21 sections covering all economic activities from agriculture to international organisations.

How do I find the right SIC code for my company?

Browse the SIC code directory by section to find the category that best matches your business activity. Each code has a description and the number of active UK companies using it, which can help confirm you have selected the correct classification.

SIC code data sourced from the UK Office for National Statistics and Companies House. Company counts are updated daily. Information is provided for reference purposes only.