The register
The register lists Thames Valley Insulation Limited in Slough 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 Thames Valley Insulation Limited (company number 10358805), a private limited company incorporated in 2016, 10 years ago. Registered office: Unit 8, Elderway Waterside Drive, Langley, Slough, SL3 6EP, SL3 6EP. Its filed activity puts it in construction. It has traded under other names before, including Thames Valley Insuilation Limited.
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.