Ingvar Kamprad
Net worth: $31 billion

World’s richest retailer and founder of furniture store Ikea.

Kamprad began to develop a business as a young boy, selling matches to neighbors from his bicycle. He found that he could buy matches in bulk very cheaply from Stockholm, sell them individually at a low price and still make a good profit. From matches, he expanded to selling fish, Christmas tree decorations, seeds and later ball-point pens and pencils. When Kamprad was 17, his father gave him a reward for succeeding in his studies. He used this money to establish what has grown into IKEA.

The acronym IKEA is made up of the initials of his name (Ingvar Kamprad) plus those of Elmtaryd, the family farm where he was born; and the nearby village Agunnaryd.

Kamprad has admitted that his dyslexia played a large part in the inner workings of the company. For example, the Swedish-sounding names of the furniture sold by IKEA were originally chosen by Kamprad because he had difficulty remembering numeral stock-keeping units.

Reputed to be quite frugal: flies economy class, frequents inexpensive restaurants, furnishes his home with Ikea ware.