Writing, modifying, testing and supporting software. Covers bespoke software development, web development, app development and software consultancy.
Get every UK company under SIC 62012
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What This Code Means
This is the most popular SIC code for UK tech companies and freelance developers. It covers writing code, designing software systems, testing, debugging and maintaining software applications. If your business also does IT consultancy (advising clients on technology strategy without writing code), consider adding 62020 as a secondary code. Pure website design without coding may be better served by 74100 (specialised design activities).
Businesses That Use This Code
- Web development agencies
- Mobile app developers
- Custom software development companies
- SaaS companies building their own product
- Freelance software developers
Related SIC Codes
How to Register This SIC Code
You provide your SIC code when registering your company at Companies House. You can also update it on your confirmation statement if your business activity changes. You can have up to four SIC codes — the first should be your primary (highest revenue) activity.
Why Your SIC Code Matters
- HMRC uses it to benchmark your income against sector norms
- Insurers use it to assess risk and set premiums
- Government grants and support schemes are allocated by SIC code
- Credit agencies categorise your business by SIC code
Read our full SIC codes explained guide for more detail. Use CalcPad for business tax calculations.