Carillion plc was a British multinational construction and facilities management services company headquartered in Wolverhampton in the United Kingdom, prior to its liquidation in January 2018. Carillion was created in July 1999, following a demerger from Tarmac. It grew through a series of acquisitions to become the second largest construction company in the United Kingdom, was listed on the London Stock Exchange, and in 2016 had some 43,000 employees. Concerns about Carillion's debt situation were raised in 2015, and after the company experienced financial difficulties in 2017, it went into compulsory liquidation on 15 January 2018, the most drastic procedure in UK insolvency law, with liabilities of almost £7 billion. In the United Kingdom, the insolvency caused project shutdowns and delays in the UK and overseas, job losses, financial losses to clients, joint venture partners and lenders, to Carillion's 30,000 suppliers, and to 27,000 pensioners, and could cost UK taxpayers up to £180M. Wikipedia