What is the one piece of advice successful entrepreneurs from across the world would offer to young people interested in starting their own business?
Born in poverty in Syria, he is now a billionaire whose firm provides building equipment.
Founder of the first company to make ready-made Arabic coffee and Arabic coffee machines.
His company Indigo invented the first digital printer. He now works with nanotechnology
Co-founder of Ambassador Theatre Group, which owns 39 theatres throughout the world.
He started Oando, an energy firm valued at $5bn.
The CEO and President of Sercomm, a leading technology equipment supplier.
Founder of MB Telecom and a serial inventor. His security scanners are used worldwide.
Twenty-five years experience of helping entrepreneurs to grow their businesses.
He started ding* the mobile phone top up company, which had revenues of $248m in 2014.
His company Hansae makes clothes for the likes of Nike and Abercombie & Fitch.
CEO of the Linamar Corporation, an auto parts manufacturer which has sales of $3.2bn.
Started International Volunteer HQ, which offers overseas volunteer programmes.
Founder of Medivation, a company which finds new treatments for diseases.
Her S’well water bottles are sold in 10,000 retail outlets in 25 countries.
Started TBC bank with $500, which now has over 2,500 employees and has $3bn in assets.
Founder of the HitFox Group, which helps build new companies and supports entrepreneurs.
Started HotLand chain of fast food restaurants which had a turnover $233m in 2014