Michael Kerker

profine GmbH develops, manufactures and markets PVC window and door frames. Its products include window, residential door, shutter systems, and PVC sheets. The company was founded in 2003 and is headquartered in Troisdorf, Germany.

HT TROPLAST GmbH manufactures plastic and synthetic profiles for windows and doors. The firm manufactures synthetic profiles for windows and doors. It also supplies PVC-U sheets. The company is headquartered in Berlin, Germany.

Württembergische Versicherung AG engages in the provision of property and casualty insurance services. It operates through the following segments: Automotive, Private Clients, and Corporate Clients. The Automotive segment comprises automotive liability, automotive insurance, motor vehicle accident insurance, as well as traffic service insurance. The Private Clients segment focuses on residential building, household contents, general accident insurance, legal protection, and private liability business. The Corporate Clients segment specializes in commercial and industrial property and liability. The company was founded in 1828 and is headquartered in Stuttgart, Germany.

VR-Bank Ludwigsburg eG engages in the provision of banking services. Its services include block card and online banking; career and training; remote maintenance; stock market information; and service orders. The company is headquartered in Ludwigsburg, Germany.