Top 20 contractors 2017

Ranked by contracting turnover

For contractors, despite the turmoil and delay of the year since Brexit, it is clear that for some at least market conditions are relatively benign.

But for many others market conditions, particularly since the referendum and the slowdown in the London housing market, are not seen as so possible.

See tomorrow's website for the full list of the Top 150 contractors and housebuilders, and our analysis of overall turnover changes since last year and the changes in companies' all important pre-tax margins.

20172016CompanyTotal turnover £000Pre-tax profit £000Year-endContracting £000
11Balfour Beatty 8,683,0008,00015-Dec7,427,000
22Laing O'Rourke2,513,200-245,60015-Mar2,513,200
33Morgan Sindall 2,561,60043,90015-Dec2,336,000
44Carillion 5,214,200146,70015-Dec2,179,000
55Kier 4,211,000-15,40015-Jun2,025,300
67Keller 1,780,00073,90015-Dec1,780,000
79Mace 2,041,05510,73215-Dec1,670,897
811Costain 1,658,00030,90015-Dec1,658,000
98Bam UK1,709,00040,51315-Dec1,623,712
1013Galliford Try2,494,900135,00015-Jun1,492,900
11-Amey Group2,531,94723,64114-Dec1,436,727
1212Interserve 3,685,200-76,40015-Dec1,384,000
1310Skanska UK1,383,50942,08514-Dec1,383,509
15-Multiplex Construction 1,035,89715,96315-Dec1,035,897
1618Bowmer & Kirkland930,66861,47315-Aug930,668
1714Wates Construction 1,531,91035,47115-Dec891,457
1815Willmott Dixon1,222,99931,14915-Dec888,893
1920Sir Robert McAlpine869,60910,23415-Oct813,472


The data in these tables is provided to Building by construction data firm Barbour ABI and is based upon the most recent accounts filed for each of the relevant companies. Housebuilders, building main contractors, civil engineering contractors, fit-out contractors, other subcontractors and “hard” FM/building services management companies have been included. Where firms are owned by international companies, then the data is from the relevant UK subsidiary business /businesses. Data for the sectoral breakdown of turnover has been included where supplied. Any queries regarding the data should be directed to Barbour ABI. To contact, call 0151-3533 500, email or visit