Bergmeister grew up with motorsport in his family: his father Willi Bergmeister owned a workshop and dealership where Michael Schumacher served his apprenticeship as a car mechanic in the 1980s. Jörg's brother Tim won the ADAC GT Masters title in 2008, and nephew Jakob has also pursued racing. Bergmeister studied economics and holds a degree in the subject — an unusual academic background among professional racing drivers. He stands at 6 feet 4 inches, making him one of the tallest sports car drivers at the top level of the sport.
Bergmeister began single-seater racing in 1992 in Formula König, taking third place, before winning the series outright in 1993. A year in Deutsche Formula Renault followed in 1994, then a second-place finish in Formula Opel in 1995 and sixth in the Formula Opel Euroseries in 1997. From 1996 he simultaneously entered the Porsche Carrera Cup, where he progressively improved: ninth in 1998, third in 1999, and winner of the Carrera Cup in 2000. He added the Porsche Supercup title in 2001.
Bergmeister's career in North America, primarily with Flying Lizard Motorsports, defined his legacy. He became a dominant force in the GT2 class of the American Le Mans Series:
2005: GT2 class championship
2006: GT2 class championship
2008: GT2 class championship
2009: GT2 class championship
2010: GT class championship
This run of five ALMS class titles — all in Porsche 911 machinery — established him as the pre-eminent Porsche GT driver in North American prototype and GT racing during the mid-2000s to early 2010s.
The 24 Hours of Daytona provided Bergmeister with some of his most celebrated results. He took GT class wins at Daytona in 2002, and the overall victory in 2003, driving a Porsche 911 GT3-RS, a result that elevated him to the elite of American endurance racing. He added another GT class victory in 2009. A further Daytona win in the GT class came with TRG, marking another chapter in his long association with the event.
Bergmeister also competed at the 24 Hours of Le Mans, taking a GT class victory in 2004. He continued to appear at Le Mans throughout his career with Flying Lizard Motorsports, and from 2010 also competed in the FIA GT2 European Championship with BMS Scuderia Italia.
In 2006, Bergmeister added a Grand-American Rolex Series Daytona Prototype championship to his CV, demonstrating versatility beyond GT machinery. He also won the 24 Hours of Spa in 2010 in a Porsche 911 GT3-RSR. Following the conclusion of his active racing career, he transitioned into a role as a Porsche brand ambassador.
Bergmeister's record of five ALMS class championships and an outright 24 Hours of Daytona victory represents the most decorated North American GT career of any Porsche driver in the mid-2000s era. His combination of technical understanding, developed partly through his family's mechanical background, and consistent pace over long stints made him the model of a modern factory GT driver. His work with Flying Lizard Motorsports in the American Le Mans Series helped cement Porsche's reputation in North American endurance racing during the period preceding the IMSA SportsCar Championship's formation.