UK Business Website Database 2026 – 352,399 company websites (Excel)

Which UK businesses have a website — and what do we know about it?

If you sell to small and medium-sized businesses — web development, ad management, accounting, software, insurance — Companies House won’t tell you who has a website, what the business actually does, or which tools it already uses.

So we crawled UK domains one by one, kept the sites run by businesses, and matched them to the Companies House register. Online stores are not in this table — they are a separate product, with shop platform and payment providers.

What is in the table?

• 352,399 UK company websites — the name of the site, its address, and where found: a short description (74.5%) and its menu items / topics (83.8%)
• A registered company on every row — 23.0% with the official Companies House name, company number (42.0%), status (39.7%) and registered office (39.7%)
• Business e-mail (68.2%) and phone (79.3%), as published by the business itself
• Postcode, city and street address (53.3%) from the address on the site — useful for territory planning
• Data completeness score (1–6) on every row

What the business does — official SIC industry

What no other UK list tells you: the website’s technology

• Social media (66.8%), analytics and advertising (55.6%), WordPress plugins (45.2%)
• Cookie consent tool (11.7%) and review / trust provider (9.0%)
• Website platform (known for 36.5%):

If you offer ad management, you can see who has no tracking yet; if you offer WordPress services, who builds with which plugins.

The file

• Excel table (XLSX), instant download after payment (the link is valid for 30 days, up to 5 downloads)
• Websites sheet — 34 columns, one row per business, English header
• Summary — the breakdowns you see on this page, in numbers
• Field descriptions — every column with its source and fill rate
• Information — what the list is, where it comes from and how it may be used lawfully
• SOURCES.txt — the Companies House attribution required by the Open Government Licence

One business = one row. Sites reachable on several domains are merged.

What we have to say honestly

• The company data is not there for every row. UK sites block automated visitors far more often than Hungarian ones, so the legal-notice page could only be read for 48.7% of the websites. That is why the VAT number is 11.9% and the registered address 39.7%, while the company name is on every row. A re-crawl that handles blocking is planned for the 2027/Q1 edition.
• 2,303 rows belong to a company that is not in “Active” status (proposal to strike off, liquidation, dormant, non-trading). We did not drop them — the Company status column tells you, so you can filter.
• The Legal form column uses two vocabularies: the official Companies House category where the register matched (23.0%), and the form read from the name itself elsewhere (“Limited”). Both describe a registered company.
• The town is missing for 47% of the websites. Where the address the business published does not contain a postcode, the town cannot be derived, so the City column is empty — the full address is still in Street address. Wrong town values (country names, street fragments) were corrected against the official postcode-to-post-town table.
• No domain registration year in this edition, and no revenue or headcount. The latter can be matched from other sources via the company number.
• The table is a snapshot (autumn 2026). Businesses open and close; in six months it will be less accurate. This price does not include updates.
• No contact person names and no e-mail addresses containing a person’s name. Where a business only published such an address, the row has no e-mail.

Frequently asked questions