The register
The Carlton Tower Limited, London, holds a Home Office sponsor licence covering 2 routes: Global Business Mobility: Senior or Specialist Worker and Skilled Worker. It has been on the register since at least 2026. Rating on the current register: Worker (A rating).
At Companies House the business is Carlton Tower Limited(the) (company number 01575177), a private limited company incorporated in 1981, 45 years ago. Registered office: Floor 8, 71 Queen Victoria Street, London, EC4V 4AY, EC4V 4AY. By its SIC codes the business is in hospitality. It has traded under other names before, including Canten Limited.
Holding a licence is the expensive, slow part done. For The Carlton Tower Limited the question each time is only whether the role and the pay fit the current rules, and that is checked per vacancy.