The register
The register lists Wartsila UK Ltd in Fareham, Hampshire as a licensed sponsor on Global Business Mobility: Senior or Specialist Worker and Skilled Worker, 2 routes in all, and has done since at least 2026. Rating on the current register: Worker (A rating).
Wartsila UK Limited is the registered name (Companies House number 01004816), a private limited company on the register since 1971. Registered office: Spinnaker House, Waterside Gardens, Fareham, PO16 8SD, PO16 8SD. By its SIC codes the business is in repair and installation of machinery. It has traded under other names before, including Deep Sea Seals 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.