The case describes Siemens, a worldwide innovator in the Energy, Healthcare, Industry, and Infrastructure & Cities sectors, and its efforts to develop and commercialize new R&D through open innovation, including internal and external crowdsourcing contests. Emphasis is placed on exploring actual open innovation initiatives within Siemens and their outcomes. These include creating internal social- and knowledge-sharing networks and utilzing third party platforms to host internal and external contests. Industries discussed include energy, green technology, infrastructure and cities, and sustainability. In addition, the importance of fostering a collaborative online environment and protecting intellectual property is explored.