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SIC Codes: The Full List and How to Choose One

Last updated: 3 September 2026

A SIC (Standard Industrial Classification) code describes what your company does. You choose at least one when you form your company and confirm it each year to Companies House. You can have more than one if your business does several things — pick the closest match, and if you’re not sure, we’ll help you choose the right code when we form your company.

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This article is for general information only and reflects the position at the date it was last updated. It does not constitute legal, tax, accounting or other professional advice and should not be relied upon as such. Fees, rules and deadlines may change. You should seek advice from a suitably qualified professional before acting on anything covered here.

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