French giant Bouygues saw its group construction order book bolstered by the Leadbitter acquisition earlier this year.
Revealing its results for the six months to June 30, the French parent company said construction revenue rose to £4.2 billion compared with £4bn in the same period last year. International construction revenue, outside of France, was up from £1.76bn to £1.8bn, with operating profit up from £127.5 million to £146m.
The overall order book stood at £13.7bn, half of which is in France and 20 per cent of which is in the rest of Western Europe. It includes the French Ministry of Defence headquarters in Balard, a public private partnership deal worth £886m.
Bouygues took a 51 per cent stake in UK construction and house building firm Leadbitter earlier this year. Bouygues said £411m of its order book related to Leadbitter at the date of acquisition.
Its infrastructure firm Colas saw improved profits in H1 2011 after a difficult 2010, when there was a 20 per cent slump in profits. The first half of 2011 saw an 8 per cent boost in sales to £4.78bn - up 15 per cent in France but down 3 per cent in international markets - and a net profit of £1.77m.
Overall, the construction and media giant reported an increase in sales of 4 per cent, up from £12.9bn to £13.5bn. Operating profit grew from £618m to £666m.
French real estate arm Bouygues Immobilier saw a 16 per cent drop in revenue, with commercial sales down 47 per cent and residential down 6 per cent after a record year in 2010.