Severfield plc is a York based structural steel contractor. By turnover it is the largest in the UK, with a capacity of 130,000 tons per year, and a further 20,000 tons in the EU. Landmark works include London's 2012 Olympic Stadium, The Shard, Wimbledon Centre Court roof, Emirates Stadium and Paris Philharmonic Hall. The firm has acquired businesses across structural steel market sectors within the UK and EU, and it participates with JSW Group in a Mumbai based joint venture that fabricates 100,000 tons of structural steel per annum. Severfield owns 50% of Construction Metal Forming Ltd which in 2023, claimed to be the UK's largest supplier of steel decking. Wikipedia