The register
The register lists Cast Connex UK Limited in London as a licensed sponsor on Global Business Mobility: UK Expansion Worker and Skilled Worker and Global Business Mobility: Senior or Specialist Worker, 3 routes in all, and has done since at least 2026. Its rating on the register is Worker (A rating).
Cast Connex UK Ltd is the registered name (Companies House number 14425883), a private limited company on the register since 2022. Registered office: 5 New Street Square, London, EC4A 3TW, EC4A 3TW. By its SIC codes the business is in professional and technical services.
Holding a licence is the expensive, slow part done. For Cast Connex UK Limited the question each time is only whether the role and the pay fit the current rules, and that is checked per vacancy.