Here's 114 companies formerly nationalised in the UK: https://en.wikipedia.org/wiki/Category:Former_nationalised_i...

or currently nationalised: https://en.wikipedia.org/wiki/State-owned_enterprises_of_the...

Electric, Gas distribution, British Petroleum, British Telecom, Bank of England, other banks like Bradford & Bingley, Royal Mail, regional water companies, shipbuilding, aeroplane, car, iron, and steel manufacturing, nuclear power, canals and waterways, coal mining, munitions factories, pubs, zinc smelting, airlines, Ordnance Survey Mapping, National Highways, BBC and Channel 4 broadcasting, The Crown Estate, Nuclear Laboratory, UK Hydrographic office, Meteorological Office, Genomics England, Student Loans Company, Civil Aviation Authority, Porton Biopharma...