The register
Tonkin Liu Limited is licensed to sponsor workers on Skilled Worker. The organisation is based in London and has held its place on the register since at least 2026. Rating on the current register: Worker (A rating).
Companies House lists it as Tonkin Liu Ltd, number 03406375, incorporated 1997: 29 years of filings behind the name. Registered office: 5 Wilmington Square, London, WC1X 0ES, WC1X 0ES. By its SIC codes the business is in professional and technical services. It has traded under other names before, including Tonkin Architects Limited, Hosedeep Limited.
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.