The register
The register lists Alderson Digital Ltd in London as a licensed sponsor on Skilled Worker, an entry that goes back to at least 2026. Rating on the current register: Worker (A rating).
Alderson Digital Ltd is the registered name (Companies House number 11165336), a private limited company on the register since 2018. Registered office: 309 Hoe Street, London, E17 9BG, E17 9BG. Its filed activity puts it in finance and insurance.
A licence says an organisation may sponsor; it does not say it is hiring today. The way to find out is the same as for any employer: the careers page, the job boards, and a direct approach with a UK-style CV that says early that sponsorship would be needed.