The register
The register lists Smile 360 in Harrow, Middlesex 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 Smile 360 Ltd (company number 12749226), a private limited company incorporated in 2020, 6 years ago. The registered office is at Smile 360 Dental Practice, 404 Alexandra Avenue, Harrow, Middlesex, HA2 9TR, HA2 9TR. By its SIC codes the business is in health care.
Holding a licence is the expensive, slow part done. For Smile 360 the question each time is only whether the role and the pay fit the current rules, and that is checked per vacancy.