Today, Saudi Arabia's Tadawul stock exchange opens up to foreign investors for the first time. Worth more than $500bn (£323bn), it represents a huge opportunity for those with an eye for the Middle East's biggest economy.
For a number of years, Saudi Arabia has embarked on an ambitious investment plan in order to diversify the economy away from oil revenues and create employment for its very young population – of which more than 50 per cent are under 20 years old.
Saudi Basic Industries Corporation (SABIC)
National Shipping Company of Saudi Arabia (Bahri)
Saudi Telecom Company
National Commercial Bank