5. Abdulla bin Ahmad Al Ghurair & family

GLOBAL RANK: 1,111

NET WORTH 2021: $2.8 billion CHANGE: –$900 million

AGE: Unknown COUNTRY: U.A.E. SECTOR: Diversified

Abdulla Al Ghurair founded Mashreq Bank, a leading U.A.E. bank, in 1967. He stepped down as chairman in October 2019, but remains a board member. His eponymous holding company has interests in food, construction and real estate; non-family members are part of the leadership team. His construction company did the exterior cladding of Burj Khalifa, the world’s tallest building, and helped build the Dubai Metro. His brother Saif Al Ghurair, who passed away in August 2019, was also a billionaire.