The register
The register lists Alta Advisers Limited 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).
Alta Advisers Limited is the registered name (Companies House number 03150197), a private limited company on the register since 1996. The registered office is at Elsley House, 24-30 Great Titchfield Street, London, W1W 8BF, W1W 8BF. Its filed activity puts it in finance and insurance. It has traded under other names before, including Law 702 Limited.
Holding a licence is the expensive, slow part done. For Alta Advisers Limited the question each time is only whether the role and the pay fit the current rules, and that is checked per vacancy.