On January 15, 2018, Carillion — one of Britain’s largest construction and outsourcing companies — collapsed into compulsory liquidation with debts of approximately £7 billion and a pension deficit of nearly £2.6 billion. The company had been managing hospitals, schools, prisons, and military housing across the United Kingdom, and its sudden demise left 43,000 jobs in jeopardy and threw public services into chaos. It was the largest corporate failure in British history.
Building an Outsourcing Giant
Carillion was created in 1999 when Tarmac, the construction materials company, demerged its construction services division. Under a series of ambitious CEOs, Carillion grew rapidly through acquisitions and contract wins, becoming one of the UK government’s most important strategic suppliers. The company managed maintenance for hundreds of schools and hospitals, operated prisons, maintained military bases, and built major infrastructure projects including sections of the HS2 high-speed railway.
By 2016, Carillion had annual revenues of £5.2 billion, employed 43,000 people worldwide, and was involved in over 450 public-sector contracts. The UK government had made it a cornerstone of its outsourcing strategy, awarding Carillion contracts even as the company’s financial health deteriorated.
The Business Model Problem
Carillion’s fundamental problem was a business model built on wafer-thin margins and aggressive accounting. Construction and outsourcing contracts typically operate on margins of 3-5%, meaning any cost overruns or delays could quickly turn a profitable project into a losing one. Carillion offset this by taking on ever more contracts, using the cash flow from new projects to cover losses on old ones.
The company also employed aggressive accounting practices to mask its deteriorating performance. Revenue and profits were recognized early on long-term contracts through optimistic assumptions about costs and completion timelines. When contracts went sour, the write-downs were delayed as long as possible, creating a growing gap between the company’s reported health and its actual condition.
The Warning Signs
The signs of trouble were visible well before Carillion’s collapse. The company’s debt had been growing for years. Its pension deficit was ballooning. Short sellers — investors who bet on stocks declining — had been targeting Carillion since 2013. The company consistently paid dividends it couldn’t afford, distributing £376 million to shareholders between 2012 and 2016 while generating only £159 million in cash from operations.
In July 2017, Carillion issued a profit warning that revealed £845 million in contract write-downs — a staggering figure that indicated years of accumulated problems suddenly surfacing. The share price crashed by 70%. Two more profit warnings followed in quick succession, each revealing additional losses that management had previously concealed.
The Government’s Role
One of the most troubling aspects of the Carillion collapse was the UK government’s continued reliance on the company even after clear warning signs emerged. Between the first profit warning in July 2017 and the company’s collapse in January 2018, the government awarded Carillion additional contracts worth hundreds of millions of pounds, including a £1.4 billion HS2 railway contract awarded just weeks before the profit warning.
A parliamentary investigation later concluded that the government had been “negligent” in its oversight of Carillion. The Cabinet Office’s risk assessment processes had failed to identify the growing danger, and ministers had continued to use Carillion as a strategic supplier despite mounting evidence of financial distress.
The Collapse
Carillion spent its final months desperately seeking a rescue. The company asked the government for a bailout. It explored mergers with competitors. It negotiated with its banks for additional funding. All efforts failed. On January 15, 2018, after the government refused to provide emergency funding, Carillion entered compulsory liquidation — the most dramatic form of corporate death, where a company ceases operations immediately.
The liquidation triggered a massive logistical challenge. The company’s 43,000 employees faced immediate uncertainty. Hundreds of public-sector contracts needed to be transferred to alternative providers. Subcontractors and suppliers, many of them small businesses, were owed hundreds of millions of pounds they would never receive.
The Investigations
Parliamentary committees described Carillion as a “story of recklessness, hubris and greed” and condemned the company’s directors for enriching themselves while the company disintegrated. Former CEO Richard Howson received a salary of £1.5 million per year plus bonuses, even as Carillion’s problems mounted. The company’s auditor, KPMG, was also criticized for signing off on Carillion’s accounts for 19 years without raising material concerns.
The Financial Reporting Council investigated KPMG’s audit of Carillion and eventually fined the firm £21.2 million — a record penalty at the time. The Insolvency Service pursued disqualification proceedings against former directors for their roles in the company’s failures.
Lessons from Carillion
Carillion’s collapse exposed fundamental problems with the UK’s model of outsourcing public services to private companies. The government’s dependence on a small number of large contractors had created systemic risk — when one failed, there was no easy substitute. The aggressive accounting practices that disguised Carillion’s true condition had been enabled by auditors who failed in their gatekeeping role.
The case raised urgent questions about whether essential public services — hospitals, schools, prisons, military installations — should be entrusted to profit-driven companies operating on thin margins with high leverage. The answer, for many observers, was that the British outsourcing model needed fundamental reform to protect both the public interest and the workers who deliver critical services.