Search
/search/companies
Company Search
Used to find matching companies when a user enters a company name or other company search term.
Transparency about the data behind the service
Where Check Company UK Gets Its Data
Check Company UK uses public company information made available by Companies House. This page explains the source, the API resources used by the service, how the information is processed and the limits you should understand when reviewing a company report.
Public Companies House data
Server-to-server API requests
Independent service
Our Primary Source Is Companies House
Companies House is the UK registrar of companies. It receives, records and publishes company information required under UK company law and makes public register information available through its online services and public data API.
Check Company UK connects to the Companies House public data API to retrieve relevant company information when a user performs a search. We are not affiliated with, endorsed by or operated by Companies House or the UK Government.
The service is designed to make selected public register information easier to search and review, not to replace or modify the official Companies House record.
API resources
Companies House Resources Used by Check Company UK
The current application uses different Companies House API resources depending on the information requested and what is available for the selected company.
Profile
/company/{number}
Company Profile
Provides the core company record, including company number, status, incorporation information, company type, SIC codes and related company-level profile fields.
Filings
/filing-history
Filing History
Used to retrieve recent filing-history items and provide context around documents and events recorded for the company.
Charges
/charges
Company Charges
Requested where the company profile indicates relevant charge information, such as registered charges or mortgages.
Insolvency
/insolvency
Insolvency Information
Requested where the company profile indicates insolvency history and used to present the insolvency cases returned for that company.
Report content
What Information We May Present
Company Identity
Registered company name, company number, company type and incorporation information.
Company Status
The company status returned on the Companies House profile, such as active, dissolved or another supported status.
Previous Company Names
Former registered company names and their effective dates where previous-name information is available.
Business Activity
SIC codes and other company-profile fields that describe the registered nature of the company's activities.
Company-Level Filtering
The interface deliberately excludes natural-person records and other person-level details from the report.
Filings, Charges & Insolvency
Selected filing history, registered charges and company insolvency information where the relevant public resources are available.
Company-only presentation
Person-Level Information Is Excluded
Company-Level Fields
Reports focus on company identity, status, incorporation information, SIC codes, previous company names, filing dates and categories, charge status and dates, and insolvency case types and dates.
Natural-Person Details
The service does not provide person-name search or natural-person profile records, and it excludes person-level addresses, insolvency-practitioner details, persons entitled to charges, and filing descriptions that may contain personal names.
Public Register Data Has Important Limits
Companies House now has statutory objectives and enhanced powers to improve the accuracy and integrity of the register, including powers to query information, reject certain filings and remove or annotate information in appropriate cases. These reforms improve register quality, but public register data should still be reviewed in context and should not be treated as an independent guarantee that every recorded fact is accurate or complete.
Check Company UK does not independently verify each filing, charge or insolvency entry before displaying selected company-level information returned by the Companies House API.
Information can also change over time as companies submit new filings or Companies House updates the register.
For decisions involving significant legal, financial or credit risk, consider reviewing the official record directly and using additional appropriate verification or professional advice.Processing
How the Data Reaches Your Report
Server-to-Server Request
Check Company UK sends the relevant request from the application server to the Companies House public data API.
Structured API Response
Companies House returns structured data for the requested resource, subject to the information available for that company record.
Readable Presentation
The application selects and formats relevant fields into a report designed to be easier for a general user to understand.
Official resources
Check the Official Source
Companies House – Find and Update Company Information
Search the official public Companies House register directly.
Companies House Public Data API
Official technical reference for the public API resources used by the service.
See How the Data Is Used
Read how Check Company UK turns public Companies House data into a simpler company-checking workflow.