The register
The register lists St John's International School in Sidmouth, East Devon 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 St John's International School Limited (company number 07999804), a private limited company incorporated in 2012, 14 years ago. The registered office is at 3rd Floor 2 Glass Wharf, Bristol, BS2 0EL, BS2 0EL. Its filed activity puts it in education. It has traded under other names before, including Buildings for Education Ltd.
Holding a licence is the expensive, slow part done. For St John's International School the question each time is only whether the role and the pay fit the current rules, and that is checked per vacancy.