Companies House publishes the register for free, but its data product carries no telephone number, no email address and no turnover, and you cannot select part of it. At CompanyData you get all 8,852,655 UK companies from the same register as the base, enriched with phone numbers, mobile numbers, email addresses, revenue and group structure. Filter by SIC code, region and company size, then take it as Excel, CSV or through the API.
| # | Company | Company number | Town | SIC | Telephone | |
|---|---|---|---|---|---|---|
| 1 | Whitfield Building Services Ltd | 0742**** | Manchester | 43999 | 0161 2** **** | info@whi***.co.uk |
| 2 | Harper & Sons Bakery Ltd | 1183**** | Leeds | 10710 | 0113 4** **** | j.ha***@har***.co.uk |
| 3 | Northgate Logistics Ltd | 0956**** | Bristol | 49410 | 0117 3** **** | ops@nor***.co.uk |
| 4 | Studio Kestrel Ltd | 1274**** | London | 74100 | 020 7** **** | hello@stu***.co.uk |
| 5 | Ashworth Motors Ltd | 0831**** | Birmingham | 45200 | 0121 5** **** | info@ash***.co.uk |
| 6 | Greenacre Landscapes Ltd | 1049**** | Norwich | 81300 | 01603 2** *** | info@gre***.co.uk |
| 7 | Tidewater Print Ltd | 0668**** | Glasgow | 18129 | 0141 3** **** | sales@tid***.co.uk |
| 8 | ██████ ███ | ████████ | ████████ | ████████ | ████████ | ████████ |
A free sample of your Companies House file.
Then you decide.
is what the Companies House data product costs, and for a register extract that is a fair price. The work starts after you download it
telephone numbers, email addresses and turnover figures are included in it. Those are the three fields most people came for
of the roughly 2,2 million accounts filed each year are submitted electronically, and only those have usable accounts data
companies in our file carry a business email address, and 2,676,335 a telephone number
Companies House publishes the whole register for free. The Free Company Data Product is a monthly ZIP of CSV files covering every live company, and it is refreshed within five working days of each month end. What you get is the register: company number, registered address, status, incorporation date, SIC code, filing dates and basic charge information. For checking a company, that is exactly right, and it is hard to argue with free.
Where it stops is the moment you want to do something with it. There is no telephone number, no email address and no turnover in that file. Directors sit in a separate download rather than next to their company. Accounts data only exists for electronically filed accounts, roughly 60% of the 2,2 million filed each year. And you cannot ask for a slice: it is the entire register or nothing, so selecting construction firms in Yorkshire with more than ten staff is work you do yourself, after the download, with no support to fall back on.
Our file starts from that same register and adds the fields it leaves out. Of the 8,852,655 UK companies in it, 2,676,335 carry a telephone number, 1,308,989 a business email address, 2,682,960 a website and 6,300,196 a named director. You select by SIC code, region, company size or revenue and take the result as Excel, CSV or through the API.
Where a field genuinely is in the register, both columns show the same population: this is not a stacked comparison. The difference is only where the field exists at all.
| Field | Companies House | CompanyData |
|---|---|---|
| Companies in the file | 8,852,655 | 8,852,655 |
| Company name and trading names | 8,852,655 | 8,852,655 |
| Company number | 5,796,195 | 5,796,195 |
| Registered address and postcode | 8,849,695 | 8,849,695 |
| SIC code and company type | 8,852,655 | 8,852,655 |
| Incorporation date and status | 8,852,655 | 8,852,655 |
| Directors and officers | Separate file | 6,300,196 |
| Website | ✗ | 2,682,960 |
| Telephone number | ✗ | 2,676,335 |
| Mobile number | ✗ | 904,397 |
| Business email address | ✗ | 1,308,989 |
| Turnover and revenue band | Filed accounts only, as documents | ✓ |
| Employee numbers | ✗ | ✓ |
| Group structure (parents and subsidiaries) | ✗ | ✓ |
| Filtering by industry, region, size or revenue | ✗ | ✓ |
The Companies House snapshot is free and the whole register. Ours is a selection, enriched, with a sample up front so you can judge it before paying.
| Aspect | Companies House | CompanyData |
|---|---|---|
| Price | Free | From £25 a month, files from £425 |
| Format | ZIP of CSV files, one row per company | Excel, CSV, platform or REST API |
| Selecting before you download | Not possible, the whole register or nothing | Filter by SIC, region, size and revenue |
| Refreshed | Monthly, within five working days of month end | Monthly, with dissolved companies removed |
| Support | None, the snapshot is unsupported | Named contact, sample before you buy |
| Accounts coverage | Electronic filings only, about 60% | Structured revenue and size bands |
| Ready to use for outreach | No contact fields at all | Phone, mobile and email where available |
Counts measured in the CompanyData file, as at October 2026. The file is refreshed monthly, so these figures move with it.
Same enriched UK register, delivered as a REST API: live lookups, directors, revenue and contact details in your own systems. 150 free calls in week one.
How can you buy
Data can be delivered in so many ways. We adapt to how you work.
You say the target. We build the list. Delivered as Excel, often the same day.
Pull data live into your own system. Free API key to get started instantly.
Search and download yourself. 10 free records the moment you sign up.
e.g. all US and UK businesses with monthly updates. Delivered as one file, ready to load.
Upload your existing list. We fill in the missing emails, phones, and firmographics.
Real feedback from the people using CompanyData every day.
Account team are very responsive and data is very helpful. We've been dealing with Bolddata for a few years and have found them to be a very efficient team who are able to quickly provide good data.
Extremely reliable, high quality service, and very competitive prices. Excellent! The very best firm we've ever worked with.
Quality data, fast and efficient service.
Same verified data. Pick the option that fits how you work.
From €34/ month
Search and filter yourself, or connect via API. Download as Excel or CSV. Cancel anytime.
From €386one-off
Tell us what you need. We build the list and deliver it as Excel, often the same day.
Quick answers
Tell us who you want to reach. We pull a real slice of our data — no strings attached.
Request your free sample
