Guernsey manages three distinct businesses, which operate under the Sonic, Little Caesars, Take-5-Oil Change, and Meineke brands.

Guernsey Sonic

Year of Inception: 2021
Type: Equity
Status: Active
Brand: Sonic
Number of Locations: 87
Markets: Louisiana, Texas, Illinois, Idaho & Washington
Headquartered: Las Vegas, NV
Brand President: Jacques Grondin

Mac Foods Group

Year of Inception: 2018
Type: Equity
Status: Active
Brand: Little Caesars
Number of Locations: 38
Markets: Michigan
Headquartered: Davidson, Michigan
Brand President: Kyle Plumb

High Road Auto Group

Year of Inception: 2022
Type: Equity
Status: Active
Brand: Take-5-Oil Change & Meineke
Number of Locations: 10
Markets: New Jersey
Headquartered: Lawnside, NJ
Brand President: John Plum