Southern Tire Mart is the nation's #1 truck retreader in North America since 2007, the #1 Commercial tire dealer in the US since 2008, and the #1 commercial tire dealer since 2012. With over 200 retail and maintenance locations, STM is laser-focused on growth.  STM acquired the six Utah locations in 2023. STM and Southern Tire Mart at Pilot Flying J combine to provide quality tires and services to all vehicles from coast to coast. This family-owned company is involved in all aspects of the tire industry, operating 24 Bandag retread plants and 13 wholesale locations.

Southern Tire Mart is the cornerstone of Duff Capital Investors – over 20 businesses from trucking, tires, and automotive to construction, energy, and chemicals.