BMW operates an automobile production plant in Regensburg; the Regensburg BMW plant produces 3-series, 1-series and Z4 vehicles. Other major employers are Siemens, with its subsidiary, Osram Opto-Semiconductors, and Siemens VDO (now Continental AG), with the headquarters of its car component business. Infineon, the former Siemens semiconductor branch, has a medium-sized factory in Regensburg. Other well known companies, such as Maschinenfabrik Reinhausen, Toshiba, and Krones, have built plants in or near Regensburg. Amazon located its first German customer service centre in Regensburg.
The University of Regensburg and mercantile trade also play major roles in Regensburg's economy. Some high tech biotech companies were also founded in Regensburg and have their headquarters and laboratories in the city's "BioPark".
CipSoft GmbH is a video game company that is based in Regensburg.
OTTI, the Eastern Bavaria Technology Transfer-Institut e.V., is headquartered in Regensburg
