The register
The register lists The Admirable Crichton in London as a licensed sponsor on Skilled Worker, an entry that goes back to at least 2026. Its rating on the register is Worker (A rating).
Companies House lists it as Admirable Crichton Limited(the), number 01792084, incorporated 1984: 42 years of filings behind the name. The registered office is at C/O Uhy Hacker Young Llp Quadrant House, 4 Thomas More Square, London, E1W 1YW, E1W 1YW. By its SIC codes the business is in hospitality.
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.