Net Worth: $22 billion
(Down $9 billion from last year, up from the No. 7 richest in 2008.)
Age 83. Divorced, remarried; four children.
Opened first Ikea store 50 years ago; store's name is a combination of initials of his first and last name, his family farm and the nearest village. Retired in 1986; company's "senior adviser" still reportedly works tirelessly on his brand.More on Ingvar KampradNext: The No. 4 Richest