The register
The register lists Clementine Communications in Parsons Green 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 Clementine Communications Limited, number 05697471, incorporated 2006: 20 years of filings behind the name. Registered office: 52 New Kings Road, London, SW6 4LS, SW6 4LS. Its filed activity puts it in professional and technical services.
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.