Carillion plc was a British multinational construction and facilities management services company headquartered in Wolverhampton in the United Kingdom, prior to its liquidation – officially, “the largest ever trading liquidation in the UK” – which began 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,[7] was listed on the London Stock Exchange, and in 2016 had some 43,000 employees (18,257 of them in the United Kingdom). 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.

Former type:     Public limited company

Traded as:           LSE: CLLN

Industry:              Construction, civil engineering, Facilities management

Predecessor:     Tarmac Group, Alfred McAlpine

Founded:            1999; 21 years ago (demerger from Tarmac) 1903; 117 years ago (founding of Tarmac) Defunct   15 January 2018 (Compulsory liquidation commenced)

Headquarters:   Wolverhampton, West Midlands, United Kingdom

Website:              pwc.co.uk/carillion