The register
The register lists R20 Advisory Limited in London as a licensed sponsor on Skilled Worker, an entry that goes back to at least 2026. Its rating on the register is Worker (A rating).
At Companies House the business is R20 Advisory Limited (company number 07542121), a private limited company incorporated in 2011, 15 years ago. The registered office is at 5th Floor Leconfield House, Curzon Street, London, W1J 5JA, W1J 5JA. Its filed activity puts it in professional and technical services.
For a candidate this means one less obstacle: R20 Advisory Limited already has the licence most employers would have to apply for. The rest is the ordinary job of getting the interview.