The share of group revenue from outside of Europe and North America has already increased from 9% to 13%. The target is to take this to 25%, said chief executive Ian Tyler.
As well as entering Brazil and India, Balfour Beatty aims to grow its position in South Africa, Australia and Canada.
Mr Tyler added: "While pursuing this strategy, we will continue to shift our capital into professional services, and we remain confident of achieving our 6-7% margin target for this business by 2015.”
The export drive will be funded by the disposal of £200m-worth of PFI assets.