DP WORLD: The P&O owner is one of the world’s largest port operators and among the crown jewels of Dubai.

STANDARD CHARTERED: Istithmar World Capital (IWC) bought a 2.7 per cent stake worth about $1bn (£606m) in October, 2006.

MGM MIRAGE: In 2007, Dubai World invested about $5bn in casino operator MGM by buying shares and half of an $8.5bn Las Vegas project.

BARNEYS: IWC bought US luxury retail chain Barneys for $942m in 2007.

PERELLA WEINBERG: It also invested about $100m into the boutique investment bank in 2006.

CIRQUE DU SOLEIL: Property developer Nakheel and IWC bought a 20 per cent stake in Montreal-based international circus touring company in June 2008 and had planned to build a theatre with the group on its main palm-shaped island.

TURNBERRY GOLF COURSE: Bought in November 2008 for about $100m.

QUEEN ELIZABETH 2 LINER: The ship’s future has been under scrutiny since it docked at Port Rashid in Dubai last year for refurbishment.

ATLANTIS DUBAI: The resort, which opened last year to a $50m firework display, is a joint venture with South African tycoon Sol Kerzner.

EMIRATES: The airline, whose chairman also chairs Dubai’s supreme fiscal committee, has $55bn of orders of planes from Boeing and Airbus.

DUBAI ALUMINIUM: Established in 1979, it has become one of the world's largest producers and exporters.