Advanced Search API and company_name

We noticed that the advanced search API has been published (Yay!).

However, we couldn’t find a doc reference on how to use the search parameters, especially company_name

For example, we tried the following

https://api.company-information.service.gov.uk/advanced-search/companies?company_name=biffa+waste+services

which returns 10000 results, all of them irrelevant.

This is the equivalent of: Search results - Advanced company search - Find and update company information - GOV.UK

which in turn returns the correct 3 results.

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You can do this using the query:
https://api.company-information.service.gov.uk/advanced-search/companies?company_name_includes=biffa+waste+services

This is not documented so may well change but is what is called if you look at the network activity from the search page.

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Any news on the API address search?

It’d be really good if the documentation could be updated to reflect that compnay_name_includes is the correct route, not company_name as I spent quite a lot of time trying to bug fix my code as I got the same results every time with company_name.

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