01 · Product name
Companies House
The UK register of companies.
Published by Companies House.
In short
Companies House is the UK registrar. The public service at find-and-update.company-information.service.gov.uk opened the overview for TESCO PLC, company number 00445790, on 18 Oct 2026. Status was Active. Type was Public limited company. Incorporated on 27 November 1947. The registered office was Tesco House, Shire Park, Kestrel Way, Welwyn Garden City, AL7 1GA. SIC 47110. Last accounts were made up to 28 February 2026. The developer guidelines say the API allows 600 requests in five minutes. A filing is the company's submission to the registrar, not a conclusion you add.
Product pricing strategy
02
Free
The company overview and the filing history for 00445790 did not show a price on 18 Oct 2026. The get-started page for the API describes a registered key and does not print a pound amount. The developer guidelines print a rate: 600 requests within five minutes. That is a throttle, not a tariff. Do not convert it into a monthly bill. Do not copy an OpenCorporates API price onto the register. If a later Companies House product page prints a charge for a bulk product, cite that page. This listing's public path was the website, and the website did not ask for a card.
Utility and features
03
The Find and update company information service is the public Companies House website. The overview for 00445790 showed the previous names TESCO STORES (HOLDINGS) PUBLIC LIMITED COMPANY and TESCO STORES (HOLDINGS) LIMITED, with the dates the register records for those names. The filing history, opened the same day, listed an MR01 registration of a charge on 16 October 2026, a CS01 confirmation statement on 2 July 2026, and AA accounts on 27 June 2026. The page says Companies House does not check the accuracy of the information filed. That sentence is the limit on every row.
- 00445790 is Tesco PLC. Active public limited company, incorporated 27 November 1947, office in Welwyn Garden City, SIC 47110.
- Filings have types and dates. The history showed an MR01 on 16 October 2026, a CS01 on 2 July 2026, and accounts on 27 June 2026.
- 600 requests per five minutes. That is the developer guidelines' API rate. The public website pages did not print a fee.
The developer hub says you register a user account to use the REST API, and that each request carries an API key, a stream key, or an OAuth token. The developer guidelines say you can make up to 600 requests within a five-minute period, and that the limit resets at the end of that period. They also say applications that regularly exceed the limit can be banned. No pound price was printed on the overview, the filing history, or the get-started page. The website search is the page this listing used. The API quota is a rate, not a fee this listing found.
- 1
Open the company by number when you have one, and read status, type, and office from that overview.
- 2
Use filing history for the documents, and note the filing type.
- 3
If you script the API, stay inside 600 requests per five minutes and keep the key out of the page.
Caveats
04
The register says it does not check the accuracy of what was filed. An active status, a SIC code, and an address are what the company or its agent submitted, as the register showed them on 18 Oct 2026. They can be amended by a later filing. The accounts made up to 28 February 2026 are not the same sentence as OpenCorporates' latest-accounts date of 2026-02-28 for the same number, and the incorporation date that Companies House prints was behind a login on OpenCorporates. Quote the page you opened.
The people tab lists officers. This listing did not capture it, because an officer page can carry a personal address. Use the filing history when the question is what was filed, and open an officer only when you are allowed to record that person. The API key is a credential. The guidelines tell you not to embed it in public code.
Screenshots
05
Potential use cases
06
- You have company number 00445790 and a profile from somewhere else. Open the Companies House overview and read it yourself. On 18 Oct 2026 it showed TESCO PLC, Active, public limited company, incorporated 27 November 1947, office in Welwyn Garden City, SIC 47110, accounts made up to 28 February 2026. The page says the registrar does not check accuracy.
- A charge or a confirmation statement is the question. Use filing history, not the overview. The history opened the same day listed an MR01 on 16 October 2026, a CS01 on 2 July 2026, and AA accounts on 27 June 2026. Quote the filing type and the date. Previous names on the overview are the register's history, not a second company.
- A script needs the API. Register a key and stay inside the developer guidelines: up to 600 requests within five minutes. That line is a throttle. The get-started page did not print a pound fee. Do not embed the key in a public repository. Do not copy an OpenCorporates API price onto this register.
Hard cases
The case where the first result is easy to over-read.
An officer address lands in the note
The people tab can show a personal address. This listing did not capture that tab. If the question is what the company filed, use the overview and the filing history. Open an officer only when you are allowed to record that person, and do not paste a home address into a public page.
Practitioners using it
Posts on X from people describing a concrete use. The quote is the post. Likes and reposts are the counts saved with it, not a live total. A label marks a creator, a maintainer, a vendor, a partner, a data partner, or an investor.
I’ve just had a look at the last Net World Sports accounts on Companies House. They are doing really well but the directors statement is a bit unorthodox to say the least.
Questions
Is Companies House free?
The overview and filing history opened without a price. The API page requires a registered key and states 600 requests in five minutes. No pound fee was printed on those pages.
Does Companies House verify the filing?
The service says Companies House does not check the accuracy of the information filed. A row is what was submitted, not an audit.
Citations
07
Titled sources. These public pages are what the quotes on this listing come from.
Product
Find and update company information
https://find-and-update.company-information.service.gov.uk/Product
TESCO PLC at Companies House
https://find-and-update.company-information.service.gov.uk/company/00445790Pricing
Companies House developer guidelines
https://developer.company-information.service.gov.uk/developer-guidelines