William John Tanner

Network Rail Infrastructure Ltd. engages in the business of owning, operating, and developing railway infrastructure. The company was founded on February 28, 1994 and is headquartered in London, the United Kingdom.

Network Rail Ltd. provides railroad passenger and freight services. It develops and maintains rail tracks, signaling systems, rail bridges, tunnels, level crossings, viaducts, and stations in the United Kingdom. The company was founded on March 22, 2002 and is headquartered in London, the United Kingdom.

London Underground Ltd. provides underground transportation services. The company's trains serve around 275 stations through a network of more than 250 miles of railway. The company was established in 1985 and is headquartered in London, UK.

Part of Alstom SA, Crossfleet Ltd. is a British company that manufactures railroad rolling stocks. The company is based in Derby, UK. Crossfleet was founded in 1998.

Part of Alstom SA, Bombardier Transportation (Rolling Stock) UK Ltd. is a company that designs and manufactures electrical systems, looms, harnesses and cubicles. The company is based in Derby, UK and was founded in 1994.

Part of Alstom SA, Bombardier Transportation (Holdings) UK Ltd. is a holding company that oversees subsidiaries involved in the manufacturing, repair, and maintenance of railway rolling stocks. The company is based in Derby, UK and was founded in 1983.