The register
The register lists Rockliffe Hall in Darlington, Durham as a licensed sponsor on Skilled Worker, an entry that goes back to at least 2026. Rating on the current register: Worker (A rating).
At Companies House the business is Rockliffe Hall Limited (company number 05972297), a private limited company incorporated in 2006, 20 years ago. Registered office: Rockliffe Hall, Hurworth On Tees, Darlington, County Durham, DL2 2DU, DL2 2DU. Its filed activity puts it in hospitality. It has traded under other names before, including Rockcliffe Hall Limited.
Holding a licence is the expensive, slow part done. For Rockliffe Hall the question each time is only whether the role and the pay fit the current rules, and that is checked per vacancy.