The register
The register lists Entree 2008 LTD in London 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 Entree 2008 Ltd, number 11998212, incorporated 2019: 7 years of filings behind the name. Registered office: 1st Floor Kirkland House, 11-15 Peterborough Road, Harrow, Middlesex, HA1 2AX, HA1 2AX. Its filed activity puts it in hospitality.
Holding a licence is the expensive, slow part done. For Entree 2008 LTD the question each time is only whether the role and the pay fit the current rules, and that is checked per vacancy.