The register
WPP 2005 Limited, 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. The register records its rating as Worker (A rating).
Companies House lists it as Wpp 2005 Limited, number 01003653, incorporated 1971: 55 years of filings behind the name. Registered office: Sea Containers House, 18 Upper Ground, London, SE1 9GL, SE1 9GL. Its filed activity puts it in professional and technical services. It has traded under other names before, including WPP 2005 PLC, Wpp Group PLC..
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.