Public sector consultancy Tribal Group will look to enhance its business overseas as burgeoning government deficits crimp growth in the UK and competition heats up from professional services firms seeking new opportunities outside the private sector.

Peter Martin, chief executive, said that Tribal’s non-UK revenue would rise from 4 per cent of the total last year and 6 per cent in the first six months of this year to greater than 15 per cent over the next three years.