The register
The register lists Quest Accounting Services Ltd in Milton Keynes 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 Quest Accounting Services Limited, number 04707203, incorporated 2003: 23 years of filings behind the name. The registered office is at Suite 106, The Pinnacle 170 Midsummer Boulevard, Milton Keynes, MK9 1BP, MK9 1BP. By its SIC codes the business is in professional and technical services.
Holding a licence is the expensive, slow part done. For Quest Accounting Services Ltd the question each time is only whether the role and the pay fit the current rules, and that is checked per vacancy.