The register
The register lists ES Training Limited in London, Choose County as a licensed sponsor on Skilled Worker, an entry that goes back to at least 2026. Rating on the current register: Worker (A rating).
Companies House lists it as ES Training Ltd, number 13858902, incorporated 2022: 4 years of filings behind the name. Registered office: Lynwood House 373/375 Station Road, Harrow, Middlesex, HA1 2AW, HA1 2AW. By its SIC codes the business is in education.
For a candidate this means one less obstacle: ES Training Limited already has the licence most employers would have to apply for. The rest is the ordinary job of getting the interview.