The register
The register lists SRJ Superstores Ltd in Houghton Le Spring as a licensed sponsor on Skilled Worker, an entry that goes back to at least 2026. Rating on the current register: Worker (A rating).
Srj Superstores Ltd is the registered name (Companies House number 15131644), a private limited company on the register since 2023. Registered office: Northview Service Station, Dairy Lane, Houghton Le Spring, DH4 5NW, DH4 5NW. By its SIC codes the business is 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.