Search Companies House companies by SIC code

Built for market researchers, sales teams, recruiters, accountants and sector analysts

• Search a five-digit SIC code or describe an industry in plain English.
• Combine one or more recorded business activities with town, region, status and incorporation date.
• Open company dossiers with officers, PSC ownership, filings and direct links to the public register.
• Review every recorded SIC code rather than assuming a company's first code describes all of its activity.

Example searches and checks

• Active software development companies using SIC 62012 in London
• New recruitment companies using SIC 78109 incorporated this year
• Property letting companies using SIC 68209 with repeat-founder evidence

How to interpret SIC search results

A SIC code is registry evidence supplied by the company, not an audited description of its products, customers or current trading activity.

Companies House uses a condensed list for filings, and a company may record up to four codes. Check every code and the latest filing evidence before making a decision.

Browse live SIC company cohorts

• Software development companies — SIC 62012
• IT consultancy companies — SIC 62020
• Management consultancy companies — SIC 70229
• Other business support companies — SIC 82990

Use the web app, API or MCP

Start in the live company search, review all features, or use the TypeScript SDK, REST API and MCP tools.

Frequently asked questions

Can I search Companies House companies by SIC code?

Yes. IncorpSignal searches companies by the five-digit SIC codes recorded on the Companies House register and can combine them with location, incorporation date, status and officer signals.

What does a Companies House SIC code prove?

It records the business activity the company supplied for the register. It is useful classification evidence, but it is self-reported and should not be treated as an audited description of what the business currently sells.

Can a UK company have more than one SIC code?

Yes. Companies House allows a company to record up to four SIC codes, so a useful sector search should check all recorded codes rather than only the first.