The company, part of Lagan Construction Group, will carry out work in Gibraltar and Cyprus for Defence Infrastructure Organisation - with the work valued at a combined £31m.

It is also Florida-bound after winning a deal with the US Naval Facilities Engineering Command for runway repairs at a field in Milton in the state.

The contracts are the latest in a long line of big-money airfield and runway deals for the business - now regarded as an international specialist in airport jobs.

Lagan Construction Group is based in Belfast and employs 900 people after a merger earlier this year. In its latest accounts for year ending March 31, 2014, the company had pre-tax profits of £4.8m.

It is understood airport work accounts for around a quarter of the company's profits.

Chief executive Colin Loughran said: "Having completed projects on over 50 airports across five continents, airport infrastructure works are a core part of our business and our teams are experienced in providing the engineering skills and technologies necessary to deliver both airside and groundside support facilities."

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