The register
BTU Installation and Maintenance Ltd, Guildford, Surrey, holds a Home Office sponsor licence on the Skilled Worker route, and has been on the register since at least 2026. Its rating on the register is Worker (A rating).
Btu (installation & Maintenance) Limited is the registered name (Companies House number 01561231), a private limited company on the register since 1981. Registered office: 38 Weyside Road, Guildford, Surrey, GU1 1JB, GU1 1JB. Its filed activity puts it in construction. It has traded under other names before, including B.T.U. (maintenance) 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.