The register
The register lists Doves Contract Cleaning Ltd in London as a licensed sponsor on Skilled Worker, an entry that goes back to at least 2026. The register records its rating as Worker (A rating).
Companies House lists it as Doves Contract Cleaning Ltd, number 05424711, incorporated 2005: 21 years of filings behind the name. Registered office: 11 Castle Mews, London, N12 9EH, N12 9EH. By its SIC codes the business is in security, cleaning and facilities.
Holding a licence is the expensive, slow part done. For Doves Contract Cleaning Ltd the question each time is only whether the role and the pay fit the current rules, and that is checked per vacancy.