The company will develop 3 Theme districts of the Expo site that are expected to house as many as 136 pavilions for the Expo, according to a media report.
Dubai firm Al Futtaim owns 51% of Al Futtaim Carillion while 49% is owned by Carillion Construction Overseas Ltd, part of the Carillion group, according to the venture's website.
The contract, the first of $3 billion of construction deals that Dubai plans to award for the Expo in 2017, was won in a competitive procurement process, the government said.
Expo 2020 Dubai will host around 180 nations and an international audience of millions.
The contract will include the construction of 147,000 sqm of single story basements and 98 pavilion buildings of up to storeys high, totalling a gross area of 220,000 sqm together with 99,000 sqm of external works. The contract will begin in March 2017 and is scheduled for full completion in mid-2019.
The Theme districts of Expo 2020 Dubai are being designed to quality standards and this development will achieve LEED Gold certification, as well as ensuring that Worker Welfare standards for all involved are exemplary and will set new industry benchmark standards.