Chipotle was founded in 1993 by classically trained chef Steve Ells in Denver, Colorado.
Ells opened the first location using an $85,000 loan from his father.
He initially planned the burrito shop to fund a fine-dining restaurant.
The concept was inspired by large, customizable burritos from San Francisco's Mission District.
Sales exploded quickly, averaging over 1,000 burritos a day within the first month.
McDonald's became a majority investor in 2001, funding aggressive nationwide expansion.
By 2006, McDonald's divested its stake, and Chipotle launched a highly successful IPO.
The brand gained immense popularity by pioneering the "Food with Integrity" sustainable sourcing philosophy.
Despite a major food safety crisis in 2015, Chipotle successfully overhauled its operations.
Today, the company operates over 3,700 locations and relies heavily on digital ordering.