Top 20 billionaires and their wives and girlfriends

12. David Koch and Julia Koch


David Koch, the VP of Koch Industries tied the knot with Julia Koch. David was the VP of Koch Industries with a net worth of $63.1 billion in 2016. Julia Koch was an intern in the fashion house when David Koch first saw her but by the year 1996, they got married.  

Julia Margaret Flesher Koch born April 12, 1962, is an American socialite and philanthropist who is one of the richest women in the world. She inherited her fortune from her husband, David Koch, who died in 2019. As of August 2022, Forbes estimated her and her family's net worth at $57.9 billion.

She spent her early childhood in Indianola, Iowa, then when she was eight years old her family moved to Arkansas, where her parents started a clothing store called Peggy Frederic's, which she contemplates a beautiful, beautiful shop. By 1998, her mother still lived in Conway but her father had moved back to Indianola.