The register
The register lists S&Z LTD in Barnsley, South Yorkshire 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).
Companies House lists it as S&Z LTD, number 11399383, incorporated 2018: 8 years of filings behind the name. Registered office: 4 Peel Square, Barnsley, South Yorkshire, S70 1YA, S70 1YA. Its filed activity puts it in retail.
Holding a licence is the expensive, slow part done. For S&Z LTD the question each time is only whether the role and the pay fit the current rules, and that is checked per vacancy.