Shake Shack's start as a park cart (2004-2015)
Shake Shack opened in 2004 as a single hot dog cart in New York's Madison Square Park. It grew from that stand into a burger chain that went public in January 2015.
A one-cart operation became a permanent stand, then a chain of locations.
It became a publicly traded restaurant company with outlets worldwide.
A single counter-service permit was the seed of a national brand, the model any small chain's licensed location hopes to follow.
