The register
Harbour Energy Plc, London, holds a Home Office sponsor licence covering 2 routes: Skilled Worker and Global Business Mobility: Senior or Specialist Worker. It has been on the register since at least 2026. Its rating on the register is Worker (A rating).
At Companies House the business is Harbour Energy PLC (company number SC234781), a public limited company incorporated in 2002, 24 years ago. The registered office is at 4th Floor, Saltire Court, 20 Castle Terrace, Edinburgh, EH1 2EN, EH1 2EN. Its filed activity puts it in professional and technical services. It has traded under other names before, including Premier Oil PLC, Premier Oil Group PLC.
Holding a licence is the expensive, slow part done. For Harbour Energy Plc the question each time is only whether the role and the pay fit the current rules, and that is checked per vacancy.