The register
The Montessori School, Balham, London, holds a Home Office sponsor licence on the Skilled Worker route, and has been on the register since at least 2026. Rating on the current register: Worker (A rating).
Companies House lists it as The Montessori School Limited, number 02932587, incorporated 1994: 32 years of filings behind the name. Registered office: 102 Chestnut Grove, Balham, London, SW12 8JJ, SW12 8JJ. Its filed activity puts it in education. It has traded under other names before, including Frances Wainwright Limited.
For a candidate this means one less obstacle: The Montessori School already has the licence most employers would have to apply for. The rest is the ordinary job of getting the interview.