We revolutionize the interaction between human and machine - HMI.

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At ddm hopt+schuler, we take pride in being a family-owned business with a history spanning over 50 years. Located at our headquarter in Rottweil we specialize in the development and production of solutions in three key product areas: ticket systems, switches, as well as contact and contactless card readers are reliable and innovative solutions highly regarded worldwide.What sets us apart is our commitment to ensuring that our solutions not only perform efficiently but also provide a positive user experience. Our extensive experience comes from a multitude of global projects, challenges, and satisfied clients.We consider ourselves as designers, developers, and manufacturers (ddm).