Fast-casual concept Dog Haus has grown from 8 units in 2015 to 21 in 2017, a two-year growth rate of 163 percent.

Chicken Salad Chick has grown from 29 units in 2015 to 65 in 2017, a two-year growth rate of 124 percent.

Rock ‘n’ roll themed restaurant Rock & Brews has grown from 8 units in 2015 to 17 in 2017, including its seasonal Stub Hub Center Stadium location. That's a two-year unit growth rate of 113 percent.

Large-format eatery and entertainment concept Punch Bowl Social has grown from 4 units in 2015 to 8 in 2017, a two-year growth rate of 100 percent.

Cafeteria-style concept Lemonade has grown from 16 units in 2015 to 27 in 2017, a two-year growth rate of 68.8 percent.

Street-style taco place R Taco (formerly Rusty Taco) has grown from 9 units in 2015 to 15 in 2017, a two-year growth rate of 66.7 percent.

Casual-dining brand Eureka has grown from 14 units in 2015 to 21 in 2017, a two-year growth rate of 50 percent.

Fast-casual concept Native Foods Café, which has an entirely plant-based menu, was one of the few Breakout Brands whose unit base shrunk since it was selected. The chain went from 26 units in 2015 to 14 in 2017, a two-year decline of 46.2 percent.

Spanish chain 100 Montaditos also faced challenges since it was named a 2015 Breakout Brand. It has gone from 17 units in 2015 to 5* in 2017, a two-year decline of 70.6 percent.

Vegan concept By CHLOE has grown from 1 unit in 2016 to 4* in 2017, not including the Sweets by CHLOE Bakery opened in 2016, for a year-over-year unit growth rate of 300 percent.

Automat Eatsa has grown from 2 units in 2016 to 8 in 2017, a year-over-year growth rate of 300 percent.

Fast-casual Sweetfin Poke has grown from 1 unit in 2016 to 3 in 2017, a year-over-year growth rate of 200 percent.

Fast-casual healthful restaurant Flower Child has grown from 3 units in 2016 to 6 in 2017, a year-over-year growth rate of 100 percent.

Cuban concept Havana 1957 has grown from 4 units in 2016 to 5* in 2017, a year-over-year growth rate of 25 percent.

Xi’an Famous Foods, a Chinese restaurant specializing in the cuisine of ancient Chinese capital of Xi’an, has grown from 9 units in 2016 to 11 in 2017, a year-over-year growth rate of 22.2 percent.

Restaurant, coffee shop and wine bar 3 Arts Club Cafe has maintained 1 unit from early 2016 to early 2017.

Roaster and retailer Intelligentsia Coffee also had flat unit growth, holding steady at 10* units from early 2016 to early 2017.

Fine-dining brand Uchi has maintained 3 units from 2016 to 2017. Unit count figure excludes the Uchiko and Top Knot concepts.

Tava Kitchen was the only 2016 Breakout Brand that did not add new units in its first year after being selected. The brand went from 3 units in early 2016 to 2* units in 2017, a year-over-year decline of 33.3 percent.