The register
The register lists Empire Double Glazing Ltd in Slough as a licensed sponsor on Skilled Worker, an entry that goes back to at least 2026. The register records its rating as Worker (A rating).
At Companies House the business is Empire Double Glazing Ltd (company number 11681283), a private limited company incorporated in 2018, 7 years ago. Registered office: Unit 4d Station Road, Langley, Slough, SL3 6EG, SL3 6EG. By its SIC codes the business is in construction.
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.