BillionaireNet
Mars
John Mars
Rank #45
UNITED STATESFood & BeverageCandy, pet food

John Mars

Net Worth
$41.345B
0% (24h)
John Mars is an American businessman, and heir to the Mars, Inc. fortune, primarily known for his involvement in the food and beverage industry. As of December 2025, his net worth is estimated at $41.6 billion. Mars serves as the chairman of Mars, Incorporated, a global leader in confectionery, pet care, and food products. He attended The Hotchkiss School and graduated from Yale University. His career has been marked by a commitment to maintaining the independence of the family business and upholding its values. Mars has three children and is married.

The Full Dossier

Early Life

John Franklyn Mars was born on October 15, 1935, in Arlington, Virginia. He is the son of Forrest Mars Sr. and Audrey Ruth (Meyer). His grandfather, Franklin Clarence Mars, founded Mars, Incorporated, an American candy company.

Rise to Success

John Mars graduated from The Hotchkiss School and Yale University. As a member of the Mars family, he inherited stakes in Mars, Incorporated, along with his siblings. He is the chairman of the company, and he has played a key role in expanding Mars's global presence. In 2017, Mars acquired VCA, Inc., a pet care company, for $7.7 billion.

Key Business Strategies

John Mars has focused on preserving the legacy of Mars, Inc. while expanding into new markets. His leadership has been characterized by a commitment to the company's independence and values. The company has a diverse portfolio, including confectionery, pet care, and food products. In August 2024, Mars agreed to acquire Kellanova for $36 billion, further expanding its snack portfolio.

Philanthropy

John Mars and his wife Adrienne, are noted supporters of the Smithsonian Institution.

Career Timeline

2017

Acquired VCA, Inc.

Mars acquired VCA, Inc., a pet care company, for $7.7 billion.

1999

Inherited Stakes in Mars, Incorporated

John and his siblings inherited stakes in the company when their father died in 1999.

1950s

Attended Yale University

Studied at Yale University.

1958

Married Adrienne Bevis

Married Adrienne Bevis in June 1958.

1953

Graduated from The Hotchkiss School

Completed his secondary education.

Philanthropic Impact

CulturalUndisclosed

Support of the Smithsonian Institution

John Mars and his wife are noted supporters of the Smithsonian Institution.

Wealth Trajectory