Carillion
British construction, infrastructure and facilities-management group that entered compulsory liquidation in January 2018.
Last updated August 22, 2026
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Overview
Carillion plc was a British multinational construction, infrastructure and facilities-management group headquartered in Wolverhampton. It was formed in July 1999 through the demerger of Tarmac’s construction contracting and professional-services activities, while Tarmac retained its heavy building-materials operations. The new company adopted the name Carillion to establish a distinct identity separate from its former parent and gradually repositioned itself from traditional construction toward integrated support services, facilities management, infrastructure maintenance and public-sector outsourcing. During the 2000s and early 2010s, Carillion expanded through acquisitions. Its portfolio came to include rail maintenance, planned maintenance, construction, facilities management, energy-efficiency services, remote-site support and Canadian power-transmission operations. Purchases such as Mowlem and Alfred McAlpine significantly increased its scale in the United Kingdom, while acquisitions and investments in Canada and the Middle East broadened its international reach. The group worked for government departments, local authorities, transport operators, hospitals, schools, utilities, commercial customers and private finance initiative partners. It also held interests in development and specialist-support businesses. Carillion was listed on the London Stock Exchange and became one of the United Kingdom’s largest construction and outsourcing companies. In 2016 it employed approximately 43,000 people worldwide, including more than 18,000 in the United Kingdom. Its business model depended heavily on winning large, long-term contracts and managing cash flows across complex construction, maintenance and public-service arrangements. Analysts and investors increasingly questioned its debt levels, supplier-payment practices, use of reverse factoring, weak cash generation and exposure to loss-making projects. Short interest in the company increased substantially during 2015 and 2016. The crisis became public in July 2017, when Carillion announced an impairment charge of approximately £845 million, principally connected with troubled UK private-finance projects and Middle Eastern work. Chief executive Richard Howson stepped down, and Keith Cochrane became interim chief executive. A further disclosure in September 2017 revealed losses of about £1.15 billion for the first half of the year. The company was downgraded from the FTSE 250, sought refinancing, sold or prepared to sell assets, and warned that it might breach banking covenants. By November 2017 it expected substantially higher debt and was seeking a recapitalisation, but negotiations with the government and other stakeholders did not produce a rescue package. Carillion entered compulsory liquidation on 15 January 2018, rather than administration. The collapse was one of the largest and most consequential failures in modern British corporate history. It disrupted or transferred public and private projects, affected thousands of employees and subcontractors, exposed suppliers to significant unpaid bills, and created losses for pensioners, lenders, joint-venture partners and public-sector clients. The Official Receiver and PricewaterhouseCoopers managed the liquidation process, which involved numerous UK and overseas subsidiaries. Parliamentary and regulatory investigations examined the company’s directors, auditors, accounting practices, pension arrangements, government procurement and the broader model of outsourcing public services. The failure also stimulated proposals concerning audit reform, director accountability, payment practices and public procurement.
History
Carillion originated in the 1999 demerger of Tarmac. Tarmac separated its construction contracting and professional-services activities from its core heavy building-materials business, creating a newly listed company with a separate corporate identity. The name Carillion was selected to distance the group from its materials heritage and signal a broader services orientation. Neville Simms became the first executive chairman, while John McDonough, appointed chief executive in 2001, led the company’s expansion into facilities management. The group developed through a sequence of acquisitions and operating investments. In 2001 it acquired the remaining interest in GT Rail Maintenance, creating Carillion Rail. Citex Management Services followed in 2002, and Planned Maintenance Group in 2005. The 2006 acquisition of Mowlem and the 2008 purchase of Alfred McAlpine substantially strengthened Carillion’s construction, infrastructure and support-services businesses. Its international presence expanded when it acquired Canadian contractor Vanbots Construction in 2008. In 2011 Carillion bought Eaga, an energy-efficiency business, although changes to UK green-energy subsidies later forced a restructuring of that operation. Further diversification followed. Carillion acquired a minority interest in The Bouchier Group in Canada in 2012, bought the facilities-management business of John Laing in 2013, and invested in Canadian transmission and distribution through Rokstad Power Corporation in 2014. It also acquired the Outland Group in 2015 and took a majority stake in Manchester developer Ask Real Estate in 2016. In 2014 Carillion attempted to combine with rival Balfour Beatty. Balfour Beatty rejected three proposals, including an offer valuing it at approximately £2.1 billion, and Carillion abandoned the approach. By the middle of the 2010s, Carillion had become a major UK contractor and outsourced-services provider. Its activities covered construction, rail, utilities, facilities management, healthcare support, education, defence-related services, local-government work and other public-sector contracts. The group’s scale and contract backlog supported an image of strategic importance, but the business also carried considerable execution and financing risk. Analysts raised concerns in 2015 about debt, extended supplier-payment terms and reverse factoring. Short selling increased, and the share price weakened as investors questioned the quality of reported profits and the company’s cash conversion. The company’s financial condition deteriorated sharply in 2017. A July trading statement identified approximately £845 million in impairments, largely from three loss-making UK private-finance projects and Middle Eastern work. Richard Howson left the chief executive position, Keith Cochrane took interim leadership, and several directors departed during an attempted refinancing. In September, Carillion reported losses of roughly £1.15 billion for the first half of the year and acknowledged that it had accepted projects at inadequate margins while underestimating contractual and delivery risks. It was removed from the FTSE 250 and began considering asset sales, including interests in Canadian operations, healthcare facilities management and property development. In November 2017 Carillion warned that it could breach banking covenants and that year-end debt could approach £925 million. Government discussions continued because the company delivered or supported important public services, but no rescue agreement was reached. On 15 January 2018 Carillion announced that it had no viable alternative to compulsory liquidation. The UK government provided funding to the Official Receiver to maintain essential services during the transition, and PwC was appointed to assist with the liquidation. The collapse affected a large network of subsidiaries, employees, pensioners, suppliers, lenders, clients and joint-venture partners. Several projects were delayed, suspended or transferred, while Canadian and other overseas entities pursued local insolvency or liquidation processes. The Official Receiver described the trading liquidation as the largest of its kind in the United Kingdom. Parliamentary committees concluded that the failure reflected not only company-specific governance and accounting problems but also weaknesses in audit, regulation, pension oversight, public procurement and the use of private contractors to deliver public services. The episode became a major case study in the risks of highly leveraged, contract-dependent outsourcing groups.
- 2018
Compulsory liquidation
[1]Carillion enters compulsory liquidation on 15 January after failing to secure financing.
- 2017
Large impairment and profit crisis
[1]Carillion announces major impairments, leadership changes and later losses exceeding £1 billion.
- 2014
Abandoned Balfour Beatty merger approach
[1]After three rejected proposals, Carillion ends its attempt to merge with Balfour Beatty.
- 2008
Alfred McAlpine acquisition
[1]The acquisition further increases Carillion’s scale across construction and infrastructure services.
- 2006
Mowlem acquisition
[1]Carillion acquires Mowlem, materially expanding its UK construction and support-services capabilities.
- 2001
Carillion Rail is established
[1]Carillion acquires the remaining interest in GT Rail Maintenance and forms Carillion Rail.
- 1999
Carillion is created through the demerger of Tarmac activities
[1]Tarmac separates its construction contracting and professional-services businesses from its heavy building-materials operations, forming Carillion.
Products and positioning
Large-scale infrastructure, construction and outsourced public-service provider
Construction services · 1999
Construction and civil engineering
Carillion delivered building, civil-engineering and infrastructure projects for public and private clients. Its work included complex, long-duration contracts whose profitability depended on accurate cost estimates, effective project control and management of contractual risk.
Facilities management · 2001
Facilities management and support services
Facilities management was a central growth area, covering the operation, maintenance and support of buildings and estates. Customers included government bodies, healthcare organisations, transport operators and commercial clients.
Rail infrastructure · 2001
Carillion Rail
Carillion Rail carried out track renewals and related contract work for the UK rail network, including work associated with Network Rail.
Energy services · 2011
Energy-efficiency services
Through Eaga, Carillion provided energy-efficiency and related household or public-policy services. The business was later rationalised after changes to UK support for renewable-energy installations affected market conditions.
Industrial support services · 2015
Remote-site support
Carillion’s Canadian interests included specialist accommodation, camps, catering and related support for remote industrial locations, including the Athabasca oil-sands region.
Controversies
2018
Parliamentary investigations into the collapse
Parliamentary committees examined Carillion’s governance, accounting, director conduct, audit, pension oversight and the government’s approach to outsourcing. Reports criticised the company’s pursuit of cash and contracts and raised broader concerns about public procurement.
2009
Consulting Association blacklisting
Carillion was identified as a subscriber to the Consulting Association, an illegal construction-industry blacklist. The company stated that the relevant history was substantially connected with predecessor or acquired businesses and later made submissions concerning its involvement.
Brand decisions
2018
Enter compulsory liquidationOtherBackground
Weekend negotiations concerning debt, pensions, government contracts and emergency funding did not produce an agreement.
Action taken
Carillion issued notice to the London Stock Exchange and sought the appointment of the Official Receiver and special managers.
Aftermath
The liquidation disrupted projects, affected suppliers and employees, and prompted extensive parliamentary and regulatory scrutiny.
2017
Attempted refinancing and asset disposalsStrategyBackground
Large project impairments, weak cash generation and rising debt threatened banking covenants and the company’s ability to continue operating.
Action taken
Carillion sought recapitalisation, considered selling overseas and support-services operations, and changed senior leadership.
Aftermath
The measures failed to secure a rescue, and the company entered compulsory liquidation in January 2018.
2014
End the proposed Balfour Beatty mergerM&ABackground
Carillion sought to combine with a major UK construction rival through three proposals, but Balfour Beatty rejected them.
Action taken
Carillion abandoned the approach after Balfour Beatty declined to extend negotiations.
Aftermath
Carillion remained independent and continued its acquisition-led strategy until its later financial crisis.
Recent events
- 2018
Carillion enters compulsory liquidation[1]
Bankruptcy
After weekend negotiations failed to secure funding, Carillion entered compulsory liquidation on 15 January 2018.
- 2017
Carillion announces major construction impairment and leadership change[1]
Leadership change · Other
A trading update disclosed an impairment charge of approximately £845 million and Richard Howson left the chief executive role.
- 2017
Carillion reports losses of about £1.15 billion[1]
Other
The company disclosed further write-downs and sought to refinance after severe deterioration in its financial position.
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