I would like to invite cordial start-ups, established companies and research institutions to present innovative solutions within the framework of an Open Innovation Challenge . These calls are organized by Ariane in cooperation with the Enterprise Europe Network, in Lower Saxony more information about the EEN is presented at www.een-niedersachsen.de. The Open Challenges are looking for innovative new solutions in the areas of Materials, Process & Structural Design, Artificial Intelligence and Drives / Propulsion. Application forms can be obtained from NBank, EEN Lower Saxony, e-mail: joerg.buesel@nbank.de. Telephone inquiries are welcome at T. 0511-30031-9371.