Meet Julia Flesher Koch, the billionaire philanthropist who's one of the world's richest women
The widow of industrialist David Koch inherited billions after his death. She now has a sprawling real estate portfolio and is a philanthropist.
Julia Flesher Koch, the widow of billionaire industrialist David Koch, is one of the wealthiest women globally, with an estimated net worth of $84.6 billion, according to Forbes in 2026. The late David Koch was worth $42.5 billion at the time of his death in August 2019, making him one of the richest people on the planet. Julia and David were married for 23 years before his passing.
After his death, Julia Flesher Koch inherited a 42% stake in Koch, Inc., which she shares with her children. The couple had three offspring together: David Jr., Mary Julia, and John Mark. Born in Iowa, Julia moved to New York in 1984 and became part of the city's elite society. She initially met David Koch on a blind date arranged by friends in 1991, but it wasn't until six months later that they began dating.
They married in May 1996 at David's home in the Hamptons. Julia Flesher Koch has been an active philanthropist and has also dived into sports ownership.
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