Shake Shack 

Shake Shack is a fast-casual American chain restaurant, generating $2.2 billion in system sales across 373 US company-owned restaurants ($1.4 billion) and 286 licensed units ($838 million), with the latter largely situated in international markets and travel hubs. The firm derives the bulk of its revenue from the direct sales of higher-end burgers, chicken sandwiches, crinkle fries, shakes, custard, and limited-time offerings, while receiving royalty payments from licensed locations. The brand emphasizes its high-quality ingredients, such as all-natural, along with hormone- and antibiotic-free proteins.