Laing O’Rourke soared to the top of the contracts league rankings after winning a £919m order to deliver an animal diseases super-lab at the government’s flagship Weybridge biosecurity campus in Surrey.

Design work for the mega contract is already underway, with most construction expected to ramp up between 2027 and 2032.

Multiplex ranked second with the next biggest order in June from developer Endurance Land for a London office project worth £300m at Old Street Roundabout in London.

Top 10  – work won in June

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According to data compiled by Barbour ABI, the top 50 contractors saw the value of new orders jump by two thirds to £3.8bn, supported by Laing O’Rourke’s mega order.

The tables for most successful work-winning firms over the last 12 months saw Mace and McAlpine maintain first and second ranking respectively with Kier entering the top 3.

Top 5  – Total wins 12 months to June

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