Qatari Diar was founded by the Qatar Investment Authority in 2005. It has a shared capital of $8.1 billion and 50 investment projects under development in 20 countries, valued at a total of $35 billion as of 2022. In November 2022, Qatari Diar opened Lusail Boulevard and Al Sa’ad Plaza, which accommodated more than 60,000 people daily during the FIFA World Cup Qatar 2022. Its ongoing projects include Diar Ras Al Hadd in Oman and CityGate in Egypt. In February 2023, the company started construction of a new phase of the CityGate project in New Cairo, with total investments of $57.3 million. Al Attiyah is also the deputy chairman and board member of Katara Hospitality since March 2021.