# Information **URL:** http://forum.companieshouse.gov.uk/c/information/25.md [Latest](http://forum.companieshouse.gov.uk/latest.md) · [Categories](http://forum.companieshouse.gov.uk/categories.md) --- ## [About the Information category](http://forum.companieshouse.gov.uk/t/about-the-information-category/1844)
**Author:** [@mfairhurst](http://forum.companieshouse.gov.uk/u/mfairhurst)\ **Replies:** 0
\[Replace this first paragraph with a short description of your new category. This guidance will appear in the category selection area, so try to keep it below 200 characters. Until you edit this text or create topics, th… --- ## [Commercial use of Companies House Public Data API data](http://forum.companieshouse.gov.uk/t/commercial-use-of-companies-house-public-data-api-data/13124)
**Author:** [@Galacrity](http://forum.companieshouse.gov.uk/u/Galacrity)\ **Replies:** 0\ **Last updated:** [November 6, 2026, 2:38pm UTC](http://forum.companieshouse.gov.uk/t/commercial-use-of-companies-house-public-data-api-data/13124 "2026-11-06T14:38:18Z")
Hello, I am developing a tool for financial that will use data from the Companies House Public Data API. I would like written confirmation of the terms before I build further. Could you please confirm: Whether data … --- ## [Open-source PHP XML Gateway accounts filing implementation](http://forum.companieshouse.gov.uk/t/open-source-php-xml-gateway-accounts-filing-implementation/12953)
**Author:** [@jason.davey](http://forum.companieshouse.gov.uk/u/jason.davey)\ **Replies:** 0\ **Last updated:** [August 24, 2026, 4:20pm UTC](http://forum.companieshouse.gov.uk/t/open-source-php-xml-gateway-accounts-filing-implementation/12953 "2026-08-24T16:20:21Z")
I have published an open-source PHP reference implementation showing how a micro-entity accounts filing can be prepared as iXBRL and submitted through the Companies House XML Gateway. The project is intended to help dev… --- ## [Parsing identity\_verification\_details (ECCTA) - the two shapes it comes in](http://forum.companieshouse.gov.uk/t/parsing-identity-verification-details-eccta-the-two-shapes-it-comes-in/12897)
**Author:** [@cavitnation](http://forum.companieshouse.gov.uk/u/cavitnation)\ **Replies:** 0\ **Last updated:** [July 23, 2026, 12:42pm UTC](http://forum.companieshouse.gov.uk/t/parsing-identity-verification-details-eccta-the-two-shapes-it-comes-in/12897 "2026-07-23T12:42:55Z")
We have been surfacing Companies House identity verification across a few million officer records, and hit a couple of things that might save others some time. The field comes in two distinct shapes identity\_verificati… --- ## [A corrected OpenAPI 3.1 spec for the Public Data API (MIT licensed), plus a generated TypeScript client](http://forum.companieshouse.gov.uk/t/a-corrected-openapi-3-1-spec-for-the-public-data-api-mit-licensed-plus-a-generated-typescript-client/12878)
**Author:** [@x11](http://forum.companieshouse.gov.uk/u/x11)\ **Replies:** 0\ **Last updated:** [July 14, 2026, 12:52pm UTC](http://forum.companieshouse.gov.uk/t/a-corrected-openapi-3-1-spec-for-the-public-data-api-mit-licensed-plus-a-generated-typescript-client/12878 "2026-07-14T12:52:50Z")
Like several people here (the localhost $ref threads especially), we hit problems generating a client from the official Swagger 2.0 spec. We ended up with hundreds of lines of repair code fixing recurring classes of defe… --- ## [Shareholder info from Companies House](http://forum.companieshouse.gov.uk/t/shareholder-info-from-companies-house/12872)
**Author:** [@radhika.sharma](http://forum.companieshouse.gov.uk/u/radhika.sharma)\ **Replies:** 1\ **Last updated:** [July 10, 2026, 11:54am UTC](http://forum.companieshouse.gov.uk/t/shareholder-info-from-companies-house/12872 "2026-07-10T11:54:12Z")
Is it possible to obtain shareholder information from Companies House — specifically the names of shareholders along with the number and class of shares they hold? Does Companies House maintain this data in a structured… --- ## [Mising XBRL Tags](http://forum.companieshouse.gov.uk/t/mising-xbrl-tags/12798)
**Author:** [@abhisheksrivastav209](http://forum.companieshouse.gov.uk/u/abhisheksrivastav209)\ **Replies:** 2\ **Last updated:** [June 16, 2026, 12:48pm UTC](http://forum.companieshouse.gov.uk/t/mising-xbrl-tags/12798 "2026-06-16T12:48:53Z")
We noticed that some tags are missing in your XBRL files. Kindly review and ensure proper tagging in future submissions. Please give this matter your attention to avoid any discrepancies. --- ## [Will There Be an eVisa API in 2025?](http://forum.companieshouse.gov.uk/t/will-there-be-an-evisa-api-in-2025/8314)
**Author:** [@daniel.ahmetaj0](http://forum.companieshouse.gov.uk/u/daniel.ahmetaj0)\ **Replies:** 3\ **Last updated:** [June 1, 2026, 8:49am UTC](http://forum.companieshouse.gov.uk/t/will-there-be-an-evisa-api-in-2025/8314 "2026-06-01T08:49:06Z")
Hi everyone, With the UK government transitioning to a digital immigration status system (eVisa) by 2025, I’m curious if anyone knows whether there will be an API available to integrate with this new system? If there i… --- ## [Question for Devs](http://forum.companieshouse.gov.uk/t/question-for-devs/12752)
**Author:** [@CHQuestions](http://forum.companieshouse.gov.uk/u/CHQuestions)\ **Replies:** 0\ **Last updated:** [April 14, 2026, 9:31am UTC](http://forum.companieshouse.gov.uk/t/question-for-devs/12752 "2026-04-14T09:31:18Z")
Hi, Is there any way I can see / talk to someone about potential functionality of the Companies House API data? I contacted the enquiries email, and they said devs monitor this site. We are financial company looking to… --- ## [Emergency Maintenance Window](http://forum.companieshouse.gov.uk/t/emergency-maintenance-window/12722)
**Author:** [@cphillips4](http://forum.companieshouse.gov.uk/u/cphillips4)\ **Replies:** 0\ **Last updated:** [March 25, 2026, 12:40pm UTC](http://forum.companieshouse.gov.uk/t/emergency-maintenance-window/12722 "2026-03-25T12:40:32Z")
Apologies, we have an emergency maintenance window booked in for today Wednesday 25th March from 12:30 until 17:30 25th March. During the window please be aware of possible disruption to WebFiling and XML. We apologise… --- ## [Upcoming planned maintenance](http://forum.companieshouse.gov.uk/t/upcoming-planned-maintenance/12642)
**Author:** [@lukedunsmore](http://forum.companieshouse.gov.uk/u/lukedunsmore)\ **Replies:** 0\ **Last updated:** [January 30, 2026, 11:48am UTC](http://forum.companieshouse.gov.uk/t/upcoming-planned-maintenance/12642 "2026-01-30T11:48:05Z")
Is the upcoming planned maintenance to the find and update company information service going to impact the Companies House API? --- ## [API rate limit increase / Other Data Products?](http://forum.companieshouse.gov.uk/t/api-rate-limit-increase-other-data-products/12530)
**Author:** [@adam](http://forum.companieshouse.gov.uk/u/adam)\ **Replies:** 0\ **Last updated:** [December 9, 2025, 11:00am UTC](http://forum.companieshouse.gov.uk/t/api-rate-limit-increase-other-data-products/12530 "2025-12-09T11:00:52Z")
I contacted the enquiries email as I am looking to find out pricing for an enterprise data service, by which I mean API rates limit increase and if there are any flat files (like the monthly snapshot) that are available … --- ## [Scheduled Maintenance - 9th December 2025](http://forum.companieshouse.gov.uk/t/scheduled-maintenance-9th-december-2025/12521)
**Author:** [@sramankutty](http://forum.companieshouse.gov.uk/u/sramankutty)\ **Replies:** 0\ **Last updated:** [December 8, 2025, 11:01am UTC](http://forum.companieshouse.gov.uk/t/scheduled-maintenance-9th-december-2025/12521 "2025-12-08T11:01:49Z")
Dear Users, We will be performing scheduled maintenance on the forum to enhance your user experience and ensure the platform’s seamless operation. Maintenance Schedule: Start Time : 09/12/2025 06:00 PM End Time : 09/… --- ## [New Tool: Visualising external risks in CH Daily Bulk Data](http://forum.companieshouse.gov.uk/t/new-tool-visualising-external-risks-in-ch-daily-bulk-data/12519)
**Author:** [@greaves.sean](http://forum.companieshouse.gov.uk/u/greaves.sean)\ **Replies:** 0\ **Last updated:** [December 7, 2025, 10:28am UTC](http://forum.companieshouse.gov.uk/t/new-tool-visualising-external-risks-in-ch-daily-bulk-data/12519 "2025-12-07T10:28:48Z")
Hi all, I’ve built a tool called Risks to British Business for visualising external risks mentioned within filings included in the Companies House daily bulk data releases. It may be of interest to some in this forum. W… --- ## [IDV obligations as ACSP formations agent](http://forum.companieshouse.gov.uk/t/idv-obligations-as-acsp-formations-agent/12405)
**Author:** [@Countingup](http://forum.companieshouse.gov.uk/u/Countingup)\ **Replies:** 1\ **Last updated:** [November 14, 2025, 11:20am UTC](http://forum.companieshouse.gov.uk/t/idv-obligations-as-acsp-formations-agent/12405 "2025-11-14T11:20:27Z")
Hi, We are a registered ACSP and act as a formations agent for our customers. We only form companies and only for single shareholders, we do not offer additional filing services. We currently ID check all of our custome… --- ## [Which Prod is PSC](http://forum.companieshouse.gov.uk/t/which-prod-is-psc/12254)
**Author:** [@paul\_green24](http://forum.companieshouse.gov.uk/u/paul_green24)\ **Replies:** 1\ **Last updated:** [October 20, 2025, 11:25am UTC](http://forum.companieshouse.gov.uk/t/which-prod-is-psc/12254 "2025-10-20T11:25:05Z")
Hi All, Currently using the CH Bulk data portal and i’m struggling to figure out which Prod number relates to Person with Significant Control. Can someone point me in the right direction? Cheers --- ## [Accounts iXBRL Fields](http://forum.companieshouse.gov.uk/t/accounts-ixbrl-fields/12236)
**Author:** [@brady](http://forum.companieshouse.gov.uk/u/brady)\ **Replies:** 0\ **Last updated:** [October 15, 2025, 11:46am UTC](http://forum.companieshouse.gov.uk/t/accounts-ixbrl-fields/12236 "2025-10-15T11:46:01Z")
Hi, We are looking to ingest the iXBRL accounts submitted from the bulk files. Is there a template for all potential fields that could be in the accounts? Looking to be able to set a database up with all potential fiel… --- ## [Request for Dummy Company Number and Authentication Code for API Testing](http://forum.companieshouse.gov.uk/t/request-for-dummy-company-number-and-authentication-code-for-api-testing/12232)
**Author:** [@productivelydev](http://forum.companieshouse.gov.uk/u/productivelydev)\ **Replies:** 0\ **Last updated:** [October 14, 2025, 2:34pm UTC](http://forum.companieshouse.gov.uk/t/request-for-dummy-company-number-and-authentication-code-for-api-testing/12232 "2025-10-14T14:34:45Z")
Hi Team, I’ve successfully completed the update address scenario using the Companies House API. To test the complete procedure and confirm everything works end-to-end, I need access to a dummy company number and a corr… --- ## [Authentication key query](http://forum.companieshouse.gov.uk/t/authentication-key-query/12104)
**Author:** [@yuvraj.chalake](http://forum.companieshouse.gov.uk/u/yuvraj.chalake)\ **Replies:** 0\ **Last updated:** [September 12, 2025, 10:18am UTC](http://forum.companieshouse.gov.uk/t/authentication-key-query/12104 "2025-09-12T10:18:43Z")
Hi Team, Kindly request you to provide the information on below point 1: Can we use single Authentication key to fetch/pull the multiple Assets in streaming API’s. eg . Auth key use for Compnay register = abcd-abcd-… --- ## [What is the application and approval process for becoming a Companies House software filing partner?](http://forum.companieshouse.gov.uk/t/what-is-the-application-and-approval-process-for-becoming-a-companies-house-software-filing-partner/11903)
**Author:** [@sanjay](http://forum.companieshouse.gov.uk/u/sanjay)\ **Replies:** 4\ **Last updated:** [July 31, 2025, 1:05pm UTC](http://forum.companieshouse.gov.uk/t/what-is-the-application-and-approval-process-for-becoming-a-companies-house-software-filing-partner/11903 "2025-07-31T13:05:53Z")
We are building an accounts production and filing platform tailored for UK businesses and accountancy firms. In light of this, we kindly request your guidance and documentation on the following: The application and app… --- ## [Maximum delay before the data is available for a date](http://forum.companieshouse.gov.uk/t/maximum-delay-before-the-data-is-available-for-a-date/11777)
**Author:** [@sergiu](http://forum.companieshouse.gov.uk/u/sergiu)\ **Replies:** 3\ **Last updated:** [July 7, 2025, 6:49am UTC](http://forum.companieshouse.gov.uk/t/maximum-delay-before-the-data-is-available-for-a-date/11777 "2025-07-07T06:49:41Z")
Hello, What would be the maximum delay for a company registered at an X date before that company’s data becomes available in the Companies House database to be retrieved by API? For example: If today 01/07/2025, I ext… --- ## [Application Limits](http://forum.companieshouse.gov.uk/t/application-limits/11675)
**Author:** [@dimitrioskazantzis99](http://forum.companieshouse.gov.uk/u/dimitrioskazantzis99)\ **Replies:** 1\ **Last updated:** [June 17, 2025, 10:52am UTC](http://forum.companieshouse.gov.uk/t/application-limits/11675 "2025-06-17T10:52:00Z")
I have a couple of questions I was hoping you could help with: Application Limits: How many live applications can we create and maintain under a single developer account? Enterprise Authentication: Is there a scala… --- ## [Service availability & incidents](http://forum.companieshouse.gov.uk/t/service-availability-incidents/11484)
**Author:** [@steph](http://forum.companieshouse.gov.uk/u/steph)\ **Replies:** 2\ **Last updated:** [May 7, 2025, 4:01pm UTC](http://forum.companieshouse.gov.uk/t/service-availability-incidents/11484 "2025-05-07T16:01:18Z")
Please can you advise what the availability is of the Companies House, in particular the APIs. What is the essential maintenance schedule? What is the incident SLAs? What is the best route to report issues with an API… --- ## [Company Number Format and Suffixed Letters](http://forum.companieshouse.gov.uk/t/company-number-format-and-suffixed-letters/4922)
**Author:** [@C\_L](http://forum.companieshouse.gov.uk/u/C_L)\ **Replies:** 5\ **Last updated:** [April 11, 2025, 1:56pm UTC](http://forum.companieshouse.gov.uk/t/company-number-format-and-suffixed-letters/4922 "2025-04-11T13:56:32Z")
Hi, Thanks to various sites and official documentation, I had the understanding a UK Company (Registration) Number could be one of the three following formats. 8 numbers, 00000000 1 letter prefix followed by 7 numbers… --- ## [Registering an application redirectURI return HTTP 403](http://forum.companieshouse.gov.uk/t/registering-an-application-redirecturi-return-http-403/11289)
**Author:** [@abugya](http://forum.companieshouse.gov.uk/u/abugya)\ **Replies:** 0\ **Last updated:** [March 20, 2025, 10:00am UTC](http://forum.companieshouse.gov.uk/t/registering-an-application-redirecturi-return-http-403/11289 "2025-03-20T10:00:27Z")
Hi! I have registered a test application for testing the OAuth2 authentication. I have created a web type key, but when I want to add a redirectURI for it, the browser returns 403 forbidden. If the URI starts with http:… --- ## [How can I get email id of directors?](http://forum.companieshouse.gov.uk/t/how-can-i-get-email-id-of-directors/11284)
**Author:** [@deepak.roy](http://forum.companieshouse.gov.uk/u/deepak.roy)\ **Replies:** 1\ **Last updated:** [March 19, 2025, 9:50pm UTC](http://forum.companieshouse.gov.uk/t/how-can-i-get-email-id-of-directors/11284 "2025-03-19T21:50:04Z")
Any suggestions how can I get email id of the directors? --- ## [Scheduled Maintenance - 9th March 2025](http://forum.companieshouse.gov.uk/t/scheduled-maintenance-9th-march-2025/11191)
**Author:** [@sramankutty](http://forum.companieshouse.gov.uk/u/sramankutty)\ **Replies:** 0\ **Last updated:** [March 6, 2025, 5:36pm UTC](http://forum.companieshouse.gov.uk/t/scheduled-maintenance-9th-march-2025/11191 "2025-03-06T17:36:02Z")
Dear Users, We will be performing scheduled maintenance on the forum to enhance your user experience and ensure the platform’s seamless operation. Maintenance Schedule: Start Time : 09/03/2025 06:00 AM End Time :… --- ## [Extracting data from scanned PDFs](http://forum.companieshouse.gov.uk/t/extracting-data-from-scanned-pdfs/6706)
**Author:** [@greaves.sean](http://forum.companieshouse.gov.uk/u/greaves.sean)\ **Replies:** 3\ **Last updated:** [March 5, 2025, 7:07pm UTC](http://forum.companieshouse.gov.uk/t/extracting-data-from-scanned-pdfs/6706 "2025-03-05T19:07:13Z")
Hi Companies House team and developers, I’m interested in extracting quantitative data from scanned PDFs and wanted to make sure I fully understand the data Companies House has access to. I’m wondering if you might be a… --- ## [Companies reporting increased demand due to war and rising geopolitical tensions](http://forum.companieshouse.gov.uk/t/companies-reporting-increased-demand-due-to-war-and-rising-geopolitical-tensions/11151)
**Author:** [@greaves.sean](http://forum.companieshouse.gov.uk/u/greaves.sean)\ **Replies:** 0\ **Last updated:** [February 27, 2025, 5:30pm UTC](http://forum.companieshouse.gov.uk/t/companies-reporting-increased-demand-due-to-war-and-rising-geopolitical-tensions/11151 "2025-02-27T17:30:31Z")
I wanted to share a recent blog post based on some research conducted at the Autonomy Institute. We downloaded and processed all of the 2024 electronically-filed annual reports for mentions of increased demand or financi… --- ## [How to definitively identify company officers across snapshot (Prod195) and streaming api data?](http://forum.companieshouse.gov.uk/t/how-to-definitively-identify-company-officers-across-snapshot-prod195-and-streaming-api-data/10740)
**Author:** [@huwlthomas](http://forum.companieshouse.gov.uk/u/huwlthomas)\ **Replies:** 2\ **Last updated:** [January 20, 2025, 7:43pm UTC](http://forum.companieshouse.gov.uk/t/how-to-definitively-identify-company-officers-across-snapshot-prod195-and-streaming-api-data/10740 "2025-01-20T19:43:05Z")
Hello Companies House community, I’m working on a project that processes both the snapshot (Prod195) and streaming data feeds for company officers (directors/secretaries). My understanding is that the Person\_Number fiel… [Next page](http://forum.companieshouse.gov.uk/c/information/25.md?page=1)