Despite continued economic turmoil, the release of pent-up demand got the industry…
Top UK contractors
What are the UK's largest construction companies by turnover? Find out with the CN100 rankings and read the latest contractor news by company

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The CN 100
Balfour Beatty
‘Worrying’ rise in migrant worker exploitation on building sites
Migrant workers are at an increased risk of exploitation on construction sites,…
Balfour Beatty shareholders revolt over CFO pay package
Nearly a third of Balfour Beatty’s shareholders rebelled against a pay package…
‘Positive momentum’ drives Balfour Beatty cash forecast towards £1bn
Balfour Beatty expects cash to near £1bn at the end of 2025,…
Balfour Beatty rules out New Hospital Programme bids
Balfour Beatty will not seek a main contractor role in the rejigged…
Bouygues
German woe returns Bouygues E&S to the red
A loss-making contract in Germany has tipped Bouygues Energies & Services (E&S)…
Bouygues UK wins £119m contract to build two campuses
Bouygues UK has been awarded a £119m contract to build two new…
Bouygues surges to league summit with green energy job
A major green energy contract helped propel Bouygues to the top of…
Bouygues bags green energy terminal job
Associated British Ports (ABP) has appointed Bouygues Travaux Publics to deliver its…
Costain
Clay investigations at proposed £2.2bn reservoir site will cut long-term costs
Tier one contractor Costain is conducting intensive clay investigations at a proposed…
Costain in ‘best shape’ as profit jumps
Pre-tax profit at major infrastructure contractor Costain has soared by almost 20…
Costain predicts margin growth after order book swells
Costain has boosted its order book by £1.5bn, the firm has revealed.…
People moves: Costain appoints, Briggs promotes and more
The first full working week of 2025 has seen a flurry of…
Galliford Try
Cost of Somerset bypass spirals to £105m
The cost of a long-delayed bypass in Somerset is expected to top…
Galliford Try subsidiary set for Scottish school job
Morrison Construction has been named as preferred contractor for a school renovation…
Galliford Try battles claim with ‘business-threatening’ implications for industry
A fire safety court case brought against Galliford Try could establish how…
Infrastructure surge drives half-year profit at Galliford Try
Infrastructure contract framework wins have spurred revenue and profit at tier one…
ISG
Former ISG employees launch legal action over redundancies
More than two thirds of ISG’s former staff are pursuing legal claims…
Revealed: 11 ISG firms went into liquidation
Eleven firms in the ISG family – including the UK holding company…
ISG-linked modular firm owed £70m to supply chain at time of collapse
A modular specialist owned by ISG’s parent firm, Cathexis, owed £70m to…
Ex-ISG film studio project officially scrapped
Plans for the UK’s largest film studio, which would have been built…
Kier
‘Worrying’ rise in migrant worker exploitation on building sites
Migrant workers are at an increased risk of exploitation on construction sites,…
Nottinghamshire diagnostic centre delayed by asbestos
The opening of a diagnostic centre that is being built by Kier…
HS2 faces multimillion-pound hit after planning permission rejection
A planning decision to block HS2 from upgrading a crucial farm lane…
Kier wins £41m delayed school rebuild contract
Kier has won a £41m contract for a major school project as…
Laing O'Rourke
Laing O’Rourke founder to become chairman
Ray O’Rourke, the founder and ex-chief executive of Laing O’Rourke, will take…
Laing O’Rourke hands over Everton stadium
Laing O’Rourke has officially handed the Everton FC’s new stadium over to…
Laing O’Rourke CFO to join plastics specialist
Laing O’Rourke’s chief financial officer (CFO) is set to leave the firm…
‘Evolution, not revolution’: What Laing O’Rourke’s new CEO will bring from Australia
He may have spent 13 years running Laing O’Rourke’s operations in Australia,…
Mace
Three arrests in Microsoft data centre build bribery investigation
Three people have been arrested as part of a Serious Fraud Office…
Mace: surging labour costs set to push up tender prices
Tender prices are set to rise on the back of mounting labour…
Mace to lead £600m Euston Tower revamp
Mace is to redevelop Euston Tower in central London for developer British…
Mace wins £140m airport pier extension job
Mace has officially won a £140m job to deliver a 180-metre extension…
Morgan Sindall
‘Worrying’ rise in migrant worker exploitation on building sites
Migrant workers are at an increased risk of exploitation on construction sites,…
Morgan Sindall school job moves ahead despite potential cost hike
A school that is being delivered in South Wales by Morgan Sindall…
Morgan Sindall finally to replace Willmott Dixon on troubled Newcastle job
Newcastle City Council expects to sign a deal “shortly” with Morgan Sindall…
Morgan Sindall lands £61m Liverpool lab
Morgan Sindall has been named as the preferred contractor to build a…
Multiplex
Profit falls at Multiplex despite higher turnover
Pre-tax profit at Multiplex Construction Europe fell by more than a third…
Costain tops December league table with HS2 work
A single mammoth contract for HS2 work propelled Costain to the top…
Multiplex lands St John’s Wood Square shell and core
Multiplex has won the shell and core contract on the £450m St…
Multiplex starts fifth building on £1.3bn Glasgow Uni revamp
Multiplex is set to start building a £300m learning and research building…
Royal BAM
‘Significant improvement’ in UK construction drives Royal Bam performance
Bam’s parent company has enjoyed a profit boost in the first quarter…
Bam sorry for delayed Scottish leisure centre
Bam has apologised for “technical issues” that have delayed the opening of…
HS2 faces multimillion-pound hit after planning permission rejection
A planning decision to block HS2 from upgrading a crucial farm lane…
Bam scoops £100m Broadgate tower upgrade
British Land has appointed Bam to deliver a £100m overhaul of a…
Sir Robert McAlpine
‘Worrying’ rise in migrant worker exploitation on building sites
Migrant workers are at an increased risk of exploitation on construction sites,…
McAlpine bounces back into black with ‘stable performance’
Sir Robert McAlpine (SRM) has rebounded into the black in its latest…
Gigafactory client seeks access road contractor
The client on a major Sir Robert McAlpine gigafactory job is looking…
‘Deep anger’ over McAlpine’s repeated hotel cladding repairs
Politicians have slammed Sir Robert McAlpine after it had to close a…
Skanska
Skanska joins McAlpine on £1.25bn Port Talbot job
Skanska has been picked to provide design advice and project management for…
People moves: Morgan Sindall chair departs, ex-ISG staff land new roles
Executives and managers at some of the biggest industry names are on…
Data centres propel Skanska Rashleigh Weatherfoil to profit
Data-centre jobs helped mechanical and electrical (M&E) specialist Skanska Rashleigh Weatherfoil to…
Unions agree access to HS2 London tunnel sites
Unions have agreed access to HS2 London tunnel sites, ending a five-year…
Tilbury Douglas
Tilbury Douglas targets £2bn of orders
Tilbury Douglas hopes to grow its orderbook to £2bn, its new chief…
Tilbury Douglas picked for £100m Dorset hospital emergency unit
Tilbury Douglas is to deliver a £100m emergency department and critical care…
Tilbury Douglas lands first contract for Barbican overhaul
Tilbury Douglas has been awarded the first contract for the Barbican Centre’s…
Kier and Galliford Try appointed to £850m utility framework
Seven contractors, including Kier, Galliford Try and Tilbury Douglas, have been appointed…
Vinci
Contractor receives council compensation after houseboats delay £6bn project
A contractor has received more than £60,000 in compensation from a council…
FM Conway chair exits as Vinci takes over
FM Conway executive group chair Joanne Conway has left the company after…
Vinci Construction to acquire FM Conway
Vinci Construction is to acquire infrastructure services business FM Conway, one of…
Vinci losses deepen despite turnover leap
Vinci made a second consecutive loss in the UK last year, despite…
VolkerWessels
VolkerWessels boosts profit as civils work reaps rewards
Projects in the infrastructure and entertainment sectors have delivered a “very strong…
Scottish rail reveals £1.4bn worth of deals
Five contractors including VolkerRail have landed deals worth a total of more…
VolkerFitzpatrick wins £19m Surrey bridge contract
VolkerFitzpatrick has been awarded a £19m contract to build a highway bridge…
Bumper warehouse project pushes contractor to top league spot
Winvic soared to top spot in the November leagues thanks to a…
Wates
‘Worrying’ rise in migrant worker exploitation on building sites
Migrant workers are at an increased risk of exploitation on construction sites,…
Pre-tax profit plunges at Wates despite record turnover
Tier one contractor Wates posted record annual turnover last year although its…
Wates handed £111m Parliament job after tender fails again
Wates has been given the job of repairing Parliament’s crumbling Victora Tower…
Wates plans low on delayed regeneration scheme
A Wates joint venture (JV) has rejigged its approach to kickstarting a…
Wilmott Dixon
Morgan Sindall finally to replace Willmott Dixon on troubled Newcastle job
Newcastle City Council expects to sign a deal “shortly” with Morgan Sindall…
Willmott Dixon scoops £61m barracks expansion
Willmott Dixon has landed a prime defence project to construct 11 buildings…
Willmott Dixon reports loss after supplier collapse cost £13m
Willmott Dixon has suffered a second successive loss after the collapse of…
Contractor duo recognised for gender equality policies
Two of the UK’s biggest construction contractors have won plaudits for promoting…