This website appears to have a company number registered at Companies House in the UK.
https://www.gov.uk/government/organisations/companies-house
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Get access to data on 356,413 websites Companies House Customers. We know of 356,413 live websites using Companies House and an additional 0 sites that used Companies House historically and 8,809 websites in the United States.
Get a list of 356,413 websites using Companies House which includes location information, hosting data, contact details, 356,413 currently live websites and an additional 435,237 domains that redirect to sites in this list. 0 sites that used this technology previouslyand 8,809 websites in the United States currently using Companies House.
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These are sites that we think might use Companies House in the future because of their similarity to other sites that already do.