06. John Mars

John Mars is one of the heirs to the Mars family fortune, which originated from the Mars, Incorporated, a company known for popular brands like M&M’s, Snickers, and Milky Way.

At the age of 87, he boasts a remarkable net worth of $38.9 billion, predominantly tied to his family’s stake in Mars, Incorporated, a global candy and pet care powerhouse.

John is known for his deep passion for horses and horse racing. For this reason, he has a prominent presence in the equestrian world and has bred champion racehorses.

In addition to his equestrian pursuits, John is dedicated to sustainable farming practices, aligning his interests with the company’s commitment to responsible agriculture.

Moreover, Mars, Inc. also owns a significant pet care business, with popular brands such as Pedigree, Whiskas, and Iams under its umbrella.