FLIP Burger Boutique (address and info)
Est. 2008, Atlanta, GA
Number of locations: 4
What they do: Upscale organic beef burgers, as designed by Top Chef winner Richard Blais. Bonus points for tongue-twisting toppings like pomegranate ketchup, pickled shallots, and tempura-fried lemon.
Why they might blow up: Atlanta food writers have cited FLIP as igniting a local burger war, and with battles come larger gains in territory. Despite an upscale vibe, they manage to keep most burgers under 10 bucks. And of course, it doesn't hurt to have a Top Chef on board.