In 1979, which company did this American billionaire businessman born in 1954 establish?
Ken Grossman Ken Grossman (born 11 November 1954) is an American billionaire businessman, founder of Sierra Nevada Brewing Company.
Karl-Johan Persson Karl-Johan Erling Göran Persson (born 23 March 1975) is a Swedish billionaire businessman, the chief executive officer (CEO) and president of the fashion company Hennes & Mauritz (H&M), which was founded by his grandfather Erling Persson. As of April 2017, according to "Forbes", he has a net worth of US$1.93 billion.