David Koch at a Glance
- Categories: Business > Billionaires, Business
- Net Worth: $58 Billion
- Birthdate: May 3, 1940 - Aug 23, 2019 (79 years old)
- Birthplace: Wichita
- Gender: Male
- Profession: Businessperson, Political activist, Chemical engineer, Philanthropist
- Nationality: United States of America
David Koch’s Net Worth: A Deep Dive into the Billionaire’s Fortune
Early Life and Koch Industries
David Koch was a prominent American businessman and philanthropist who left a significant mark on the business world. Born on May 3, 1940, in Wichita, Kansas, David was a key figure in the privately-held Koch Industries. He passed away on August 23, 2019, at the age of 79, leaving behind a legacy of business acumen and considerable wealth. His estimated net worth at the time of his death was an impressive $58 billion.
David’s journey to becoming one of the wealthiest individuals in the world was intertwined with his role as a co-owner of Koch Industries. Along with his older brother, Charles Koch, he played a crucial role in shaping the company into the vast conglomerate it is today.
Koch Industries: A Diversified Empire
Koch Industries, under the leadership of David and Charles Koch, evolved from its initial focus on oil refining and chemicals into a highly diversified company with interests spanning various sectors. Today, Koch Industries stands as the second-largest privately held company in the United States, second only to Cargill, generating massive annual revenues. The company’s wide-ranging interests include:
- Pollution control equipment and technologies
- Polymers and fibers
- Minerals
- Fertilizers
- Commodity trading and services
- Forest and consumer products
- Ranching
Furthermore, Koch Industries owns and operates a portfolio of well-known brands, including Stainmaster carpet, Lycra spandex fiber, Quilted Northern tissue, and Dixie Cup, solidifying its presence in the consumer market.

Jamie McCarthy/Getty Images
Wealth at Death and Ranking
David Koch’s $58 billion net worth at the time of his passing in 2019 placed him among the world’s wealthiest individuals. This substantial fortune secured him a tie (with his brother, Charles) for 8th place on the list of the richest people globally, reflecting his significant influence and success in business.
Philanthropic Endeavors
Beyond his business achievements, David Koch was known for his significant philanthropic contributions. He donated hundreds of millions of dollars to various charitable organizations and institutions, demonstrating his commitment to giving back to society. Some of his notable contributions include:
- Lincoln Center
- Memorial Sloan Kettering Cancer Center
- A fertility clinic at New York-Presbyterian Hospital
- The American Museum of Natural History’s David H. Koch Dinosaur Wing
The New York State Theater at Lincoln Center, home of the New York City Ballet, was renamed the David H. Koch Theater in 2008, following a $100 million donation for its renovation. Condé Nast Portfolio once described David Koch as “one of the most generous but low-key philanthropists in America,” highlighting his significant impact on various causes. David and Charles Koch were also known to support political advocacy groups, including Americans for Prosperity, and contributed to political campaigns, primarily those of the Republican Party. Notably, David Koch was a survivor of the US Air Flight 1493 crash in 1991.

(Photo by Dia Dipasupil/Getty Images for Lincoln Center)
David Koch Net Worth Breakdown
At the time of his death, David Koch’s wealth was significantly tied to his 42% stake in Koch Industries, making him a major shareholder in the second-largest private company in the United States. Koch Industries reportedly generated annual revenues of up to $100 billion. His investments were diversified across several companies, including:
- Georgia-Pacific
- Invista
- Flint Hills Resources
- Koch Fertilizer
- Koch Pipelines
- Molex
Additionally, David Koch held a stake in his family’s private equity fund, Koch Equity Development, and had cash investments estimated to be worth at least $2 billion.
Real Estate Holdings
David Koch and his family possessed an impressive real estate portfolio that further reflected their wealth. These properties included:
- Aspen, Colorado: In 1989 and 1991, David Koch purchased two adjacent mansions for $4 million. Today, this combined property is valued at a minimum of $20 million.
- Southampton, New York: In 1992, before his marriage, David Koch acquired a seven-bedroom mansion on Meadow Lane for $7.5 million. The current estimated value of this property is between $40 and $50 million.
- Palm Beach, Florida: In 1998, David and Julia Koch purchased a 1920s-era mansion, Villa el Sarmiento, for $10.5 million. This property is now potentially worth over $70 million.
- New York City, New York: In 2004, David and Julia Koch acquired an 18-room duplex co-op apartment at 740 Park Avenue for $17 million. This building has been referred to as “the richest building in the world.” In 2022, the unit was reportedly put on the market with an asking price of at least $60 million. Also, in August 2018, they purchased a townhouse in New York City for $40.25 million.
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Conclusion
David Koch’s life was a testament to his business acumen and philanthropic spirit. His significant contributions to Koch Industries, combined with his generous support of numerous charitable causes, cemented his legacy as one of the most influential figures of his time. His vast real estate holdings and investments further underscore the extent of his wealth and impact on the world.