Billionaire Profile
Julia Koch & family
Global Rank
#24

Image: Tobias Koch | CC BY-SA 3.0 de | via Wikimedia Commons

Julia Koch & family

CEO, Koch
UNITED STATES
Real-Time Net Worth
$81.19B
Estimated based on Koch stock value as of April 20, 2026
0% (24h)
Age
63
Source
Koch, Inc.
Industry
Diversified
Citizenship
UNITED STATES

Biography

Julia Koch is an American socialite and philanthropist, known for inheriting a significant portion of Koch Industries after the death of her husband, David Koch, in 2019. With a current net worth estimated at 81.2 billion USD, she is consistently ranked among the wealthiest women globally. Her wealth primarily stems from Koch Industries, a privately held multinational conglomerate involved in diverse sectors, including oil refining, chemicals, and manufacturing. Before her marriage, Julia worked in the fashion industry. She is actively involved in philanthropy, serving as president of the David H. Koch Foundation and founder of the Julia Koch Family Foundation, supporting causes such as healthcare, education, and the arts. She currently serves on the boards of Koch, Inc., Memorial Sloan Kettering Cancer Center, The Metropolitan Museum of Art, and Venetian Heritage.

Fact Checked
Verified by Editorial Team
Live Data
Updated 4/20/2026

Wealth Over Time

In-Depth Profile

Early Life

Julia Margaret Flesher Koch was born on April 12, 1962, in Indianola, Iowa. Her family owned a furniture store. She spent her early childhood in Iowa and then moved to Conway, Arkansas, where her parents started a clothing store. She graduated from the University of Central Arkansas.

Rise to Success

In 1984, she moved to New York City and worked as an assistant to fashion designer Adolfo. She met David Koch on a blind date in 1991 and married him in 1996. After David Koch's death in 2019, Julia and her three children inherited a 42% stake in Koch Industries.

Key Business Strategies

Julia Koch is a major shareholder in Koch Industries, which operates across various sectors, including energy, chemicals, and manufacturing. She serves on the board of directors of Koch Industries. In 2024, she and her children invested in BSE Global, the parent company of the Brooklyn Nets, New York Liberty, and Barclays Center. In 2025, the family acquired a minority stake in the NFL's New York Giants.

Philanthropy

Julia Koch is the president of the David H. Koch Foundation and has also established the Julia Koch Family Foundation. The foundations support various causes including healthcare, education, and the arts. The Julia Koch Family Foundation made a $75 million gift to establish an ambulatory care center at NYU Langone Health in West Palm Beach, Florida.

Career Milestones

1984

Moved to New York City and began working in the fashion industry

Worked as an assistant to fashion designer Adolfo.

1996

Married David Koch

Married David Koch, aligning with one of America's most influential industrial families.

2019

Inherited stake in Koch Industries

Inherited a 42% stake in Koch Industries following her husband's death.

2024

Invested in BSE Global

Acquired a 15% stake in BSE Global, the parent company of the Brooklyn Nets, New York Liberty, and Barclays Center.

2025

Invested in New York Giants

Acquired a 10% stake in the NFL's New York Giants.

Philanthropy & Social Impact

Philanthropy

David H. Koch Foundation

$200M+

Supports science and medical research, education, and the arts.

Healthcare

Julia Koch Family Foundation

$75M

Gave a $75 million gift for a new ambulatory care center at NYU Langone Health in West Palm Beach, Florida.

Medical Research

Lucile Packard Children's Hospital Stanford

$10M

Established the David & Julia Koch research clinic for allergy and asthma.

Medical Research

NYU Langone

$3M

Gave $3 million for the Julia Flesher Koch Professorship of Orthopedic Surgery, which supports innovative programs in clinical care, education and research.

Education

NYU

$1.4M

Gave $1.4 million to establish the Julia Koch Endowed Scholarship that supports full tuition.

Business Philosophy & Leadership

Notable Quotes

""My family and I are honored to join the Giants organization, a storied franchise with deep roots in New York," said Julia Koch."We look forward to supporting the Mara and Tisch families to advance the team's continued success and appreciate the partnership with two great families.""

Controversies & Challenges

2020

Allegations of mistreatment

A former bodyguard alleged that Julia Koch mistreated her late husband, David Koch.