The register
The register lists Tang Technology Consultancy 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).
Tang Technology Consultancy Ltd is the registered name (Companies House number 14107150), a private limited company on the register since 2022. The registered office is at 163 City Road, London, EC1V 1NR, EC1V 1NR. By its SIC codes the business is in it, software and media.
Holding a licence is the expensive, slow part done. For Tang Technology Consultancy Ltd the question each time is only whether the role and the pay fit the current rules, and that is checked per vacancy.