Total revenues (MM)Total revenue growth
Systemwide restaurantsAvg sales per square foot
Avg restaurant gross sq ftTotal employment
Corporate NameSonic Corp.
SectorQuick Service Restaurants
HeadquartersOklahoma City, OK
Primary SIC Code5812 – Eating Places
Primary NAICS Code722111 – Limited-Service Restaurants
Fiscal Year EndedAugust 31, 2017

Sonic operates and franchises the largest chain of drive-in restaurants in the US, which offer specialty drinks, ice cream desserts, made-to-order sandwiches and hamburgers, a variety of hot dogs, hand-battered onion rings, tater tots and wraps, and a verity of breakfast items. As of May 31, 2018, there are 3,589 restaurants (3,410 franchised and 179 company-operated) in 45 states.