EBITDA1 increased 36% to $3.4m with margins rising to 26% from 24%.

Chief executive Keith Neilson said: "We have been pleased with our strong performance in the first half of this year, which has seen the broadening of our product set, the increase of our customer base and the strengthening of our market position.

"Legislative and fiscal pressures are continuing to focus our customers on revenue integrity, a niche of the US IT healthcare market, of which we are at the forefront.

"These market dynamics combined with the quality of our software and our focus on customer support means we have secured another record half of sales, the main benefit of which will be seen in future years."

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