Revenue was down marginally at £400.7m (2010: £408.0m).
Profit before tax also fell by small amount to £23.5m (2010: £24.9m).
The firm said considered the financial performance to be “a good result in the current economic climate”.
It added: “The global and UK economies continued to be challenging through 2010 and this is reflected by most of our customers seeking substantial operational cost reductions across all industry sectors. We have responded to deliver the efficiencies being sought while maintaining our profitability through several process improvements and iniatitives.
“Although the worldwide recession is expected to dominate the immediate economic climate, the company's prospects for 2012 and beyond are viewed as both positive and challenging, with the securing of one of the three major tunnelling packages on Crossrail being particularly important.”
J Murphy operates as a civil engineering contractor primarily in the water, energy, and rail infrastructure sectors. It operates throughout the UK through autonomous regional offices.