Northern Ireland construction group John Graham has increased its turnover slightly, from £211m to £218m, for the year ended 31 March 2011.
Pre-tax profit was down to £4m from £4.4m in the previous year.
John Graham has divisions in building, civil engineering, highways maintenance, facilities management, and also has a public-private partnership arm. It operates across the UK and Ireland.
The firm is based in Dromore in County Down and employs around 1,000 people.
One of John Graham's most high-profile recent projects was the building of the Peace Bridge across the River Foyle.
The contractor is also working on a project to build a radioactive waste disposal facility at the Dounreay site in Scotland.
John Graham said it had secured most of the budgeted workload for next year.
The directors said the performance in 2011 had been satisfactory given the current economic conditions but that the outlook for the construction sector "remains challenging".