Direct answer
UK registration requires an official registered office and a SIC code that identifies the company’s business activity.
Official-source position
GOV.UK provides current guidance on company type, directors, shareholders, PSC information, constitutional documents, company name, registered office, SIC code, registration and post-registration steps.
Practical checklist
- Choose an address that satisfies the registered-office rules.
- Select the appropriate SIC code.
- Keep address and activity details current.
- Separate incorporation details from any separate operating licence.
Frequently asked questions
Which authority controls this topic?
GOV.UK / Companies House is the primary authority linked on this page; use its current service or guidance page before acting.
How we write our guidesWe summarise official guidance and link to it. We do not publish fees, timelines or approval promises unless the authority does. Read our methodology.