Sonic Corp is on the Cruelty Free Investing list for exploiting animals because the company sells food items that contain meat, dairy and other animal products, as a part of their daily operations.
Sonic Corp. operates and franchises the chain of drive-thru restaurants (Sonic Drive-Ins) in the United States. As of August 31, 2016, 3,557 Sonic Drive-Ins were in operation from coast to coast in 45 states, consisting of 345 Company drive-thrus and 3,212 franchise drive-thrus. [Source: Reuters]
Company Website: https://www.sonicdrivein.com