The register
SIG plc is licensed to sponsor workers on Skilled Worker. The organisation is based in Sheffield and has held its place on the register since at least 2026. The register records its rating as Worker (A rating).
SIG PLC is the registered name (Companies House number 00998314), a public limited company on the register since 1970. Registered office: Adsetts House 16 Europa View, Sheffield Business Park, Sheffield, S9 1XH, S9 1XH. By its SIC codes the business is in professional and technical services. It has traded under other names before, including Sheffield Insulations Group PLC, Sheffield Insulating Company Limited(the).
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.