Professional, scientific and technical activities not elsewhere classified. A catch-all for specialist professional services that do not fit into more specific categories.
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What This Code Means
This is the catch-all code for professional services that do not fit elsewhere. It is commonly used by businesses providing niche professional services. If your primary activity has a more specific code, use that instead — this should be a last resort. HMRC is accustomed to seeing this code used across a wide range of professional services, so it does not trigger unusual scrutiny.
Businesses That Use This Code
- Environmental consulting
- Business brokerage and valuation
- Quantity surveying
- Translation and interpretation services
- Professional services that span multiple categories
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.