The register
The register lists Mini Supermarket in Whiston 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 Mini Supermarket(UK) Ltd (company number 12594938), a private limited company incorporated in 2020, 6 years ago. The registered office is at 178 Narborough Road, Leicester, LE3 0BU, LE3 0BU. Its filed activity puts it in retail.
A licence says an organisation may sponsor; it does not say it is hiring today. The way to find out is the same as for any employer: the careers page, the job boards, and a direct approach with a UK-style CV that says early that sponsorship would be needed.