Here are some of the biggest players in the construction business within the Middle East:
Consolidated Contractors Company
With annual revenues of more than US$5.2bn (Dh19.09bn) last year, Consolidated Contractors Company  is the largest construction company in the Middle East. It is currently headquartered in Athens, having moved there from Beirut in 1975 after the outbreak of the Lebanese civil war.
It won its first major contract in 1950, to build pipelines from Kirkuk in Iraq to the Mediterranean coast. Since then its portfolio of projects have included some of the major airport construction contracts in the Arab world. It is involved in the building of the new Muscat International Airport in Oman and the new Tripoli International Airport in Libya, both of them won as joint ventures with its partner, TAV. It also has won work as a sub-contractor on the new Doha International Airport.
Its other major projects have included the construction of the huge Qatargas terminal at Ras Laffan, which now handles the equivalent of 30 per cent of the world's liquid natural gas, and Dubai Mall, a project equivalent in size to 50 football pitches. The company has offices and projects in more than 40 countries, and a workforce of more than 150,000.
TAV Construction , Turkey's leading construction group with projects worth more than $10.4bn on its books, specialises in futuristic and ultra-modern airports. Its first major contract was the Istanbul Atatürk International Airport in 1997. As a result, according to the company's history, "Foreseeing the tremendous growth of the aviation and travel sectors both in Turkey and internationally, coupled with the demand for new airports of the highest quality and technology, the founders of the company established the aim … to become the leading brand in airport construction".
In 2010, the international construction journal Engineering News Record ranked TAV the fourth-largest construction company in the world specialising in airport construction. TAV is already at work on the Midfield Terminal at Abu Dhabi International Airport, carrying out foundations work on the site.
Arabtec Construction , one of the largest construction companies in the UAE, was established in Dubai in 1975. Its projects include work on the tallest building in the world, the Burj Khalifa, and Terminal 1 at Dubai International Airport Other major high-profile projects under way include the 80-storey Okhta Centre in St Petersburg, Russia, which will be the tallest building in Europe, the Infinity Tower and Dubai Sports City.
Arabtec, which employs more than 40,000 people, has contracts in housing, sports facilities and office complexes. It has units based in Abu Dhabi, Jordan, Pakistan, Qatar, Russia, Saudi Arabia and Syria.