David Hoffmann, the recently appointed CEO of Mammoth Holdings, was born to lead. Since his thirties, he's been in charge of two of the biggest and most popular fast-food chains in the world: McDonald's and Dunkin' Donuts.

Ambitious from an early age, Hoffmann started at McDonald's on the ground floor, flipping burgers at the age of 16. "I am sort of a product of minimum wage. I grew up in the restaurants. That has been my whole life," he recalled in a 2018 interview. But he always knew that education was important too. After earning an accounting degree from Indiana University, he secured his MBA from the University of Chicago. Then, it wasn't long before he was back at his old stomping grounds, this time as a member of McDonald's management training program.

Overall, Hoffmann spent 22 years with McDonald’s Corporation, working his way up from an hourly employee to president of the burger chain’s high-growth markets, including Asia and Eastern Europe. From 2009 to 2015, he held various leadership roles as part of McDonald’s Asia Pacific Middle East Africa (APMEA), serving as president beginning in 2012, and overseeing the operations of 8,900 restaurants across 37 countries.

In 2016, Hoffmann left burgers to try his hand at donuts. Having been recruited by Dunkin' Brands, he served as president of the coffee and doughnut chain's U.S. business, overseeing all domestic operations, marketing, and development. Considered a driving force behind the company's growth during this period, in July 2018 he began serving as the company's CEO — a role he held until December 2020, when Dunkin' Brands was purchased by Inspire Brands for $11 billion.

Now, with decades of experience in the fast-food world, Hoffmann has decided to take on the car wash industry. In late September 2021, he was appointed the chairman and CEO of Mammoth Holdings, the 7th largest conveyor car wash operator in the U.S. The Atlanta-based conveyor car wash operator has 63 locations across the country under names such as QuickWash Express, Finish Line, and Shine On. Much of the appeal for Hoffmann is based on his belief that the car wash industry is "primed for disruption." During a recent interview on Yahoo Finance Live, he explained, "We think the universe of car washes in the U.S. could be double or four times what it is today."

Throughout his career, the C-suite executive has also established a reputation as someone who eagerly gives back to his community. Hoffman has been involved in numerous charities, including food banks, children’s hospitals, and Joy in Childhood — a foundation created by Dunkin’ Donuts to help children suffering from illness or hunger.