The register
The register lists Marymount International School in Kingston upon Thames, Surrey as a licensed sponsor on Skilled Worker, an entry that goes back to at least 2026. Its rating on the register is Worker (A rating).
Companies House lists it as Marymount International School, number 05325717, incorporated 2005: 21 years of filings behind the name. The registered office is at Marymount International School, 65 George Road, Kingston Upon Thames, Surrey, KT2 7PE, KT2 7PE. Its filed activity puts it in education.
Holding a licence is the expensive, slow part done. For Marymount International School the question each time is only whether the role and the pay fit the current rules, and that is checked per vacancy.