ALLDATA LLC is a source of automotive OEM (Original Equipment Manufacturer) information. ALLDATA provides vehicle manufacturers' diagnostic and repair information.
The company was founded in 1986 in Elk Grove, California by entrepreneur Rod Georgiu and a team of computer and automotive professionals. As computer technology took hold, ALLDATA began compiling OEM information. In 1996, ALLDATA was purchased by AutoZone to provide service & repair information in addition to the automotive parts and accessories sold at AutoZone's retail stores.