Tube Lines Ltd.'s business has gone down the tube -- just where it is supposed to be. Through its 30-year contract with London Underground, the company maintains and improves London's larger underground rail lines (Jubilee, Northern, and Piccadilly). In addition to maintenance operations, the company provides distribution, emergency services, and training programs to London Underground; it has also upgraded about 100 of its rail stations. Transport for London, the government agency that runs the London Underground, bought the Tube Lines shares owned by construction and rail specialists Amey and Bechtel in 2010 for about £400 million (about $580 million), returning Tube Lines to public ownership.

Key financials for Tube Lines Ltd.

Key people and executives for Tube Lines Ltd.

Top competitors of Tube Lines Ltd.

• Balfour Beatty
• Bridgen Holdings
• Carillion

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Hoover's Industries

• Transportation Services
  • Rail Infrastructure Management Services(primary)

• Construction
  • Commercial & Heavy Construction
    • Highway, Street, and Bridge Construction