The Greenbriar Equity Group of Rye, NY has acquired the Tire Works, Ramona Tire and BrakeMax retail tire and service chains, which together operate approximately 50 shops across the Southwest. They are part of a new platform company called GB Auto Service Inc. Details of Greenbriar’s acquisition have not been disclosed.

Greenbriar focuses on privately negotiated investments in the global transportation industry, with an emphasis on both manufacturers and service providers. Since its founding in 1999, Greenbriar says it has raised over $2.50 billion in committed capital across three funds.

It is no stranger to the automotive industry. Among its current investments are the Morgan Auto Group, an auto dealership network based in Florida; and Muth Mirror Systems, a supplier of mirror-based blind spot detection displays. Among its prior investments are American Tire Distributors; Tinnerman Palnut Engineered Products, a producer of engineered spring steel and plastic fastening products; and PetroChoice, a distributor of passenger vehicle lubricants.