Wiesner Prüftechnik GmbH develops and manufactures customized and intelligent solutions in industrial leak and flow testing technology. They serve customers in the industrial, medical technology, and automotive sectors, offering a wide range of testing devices and comprehensive services including consulting, maintenance, calibration, and contract testing. The company, originally Dr. Wiesner Steuerungstechnik GmbH, has been in business since 1968 and rebranded to Wiesner Prüftechnik GmbH in 2025.