The register
The register no longer lists Dover Holdings UK Ltd in London; its last appearance was 30 October 2026. That is not a mark against it: licences lapse, names change, businesses merge. Its rating on the register is Worker (A rating).
Companies House lists the business as Dover Holdings UK Ltd, company number 16422840, a private limited company. Registered office: C/- Sable International, 5th Floor, 18 St. Swithin's Lane, London, EC4N 8AD, EC4N 8AD. By its SIC codes the business is in mining and quarrying.
For a candidate this means one less obstacle: Dover Holdings UK Ltd already has the licence most employers would have to apply for. The rest is the ordinary job of getting the interview.