As the organizations are moving from more traditional "closed innovation" to "open innovation", different methods and tools are being developed and used to take full advantage of open innovation. One such tool "open innovation portals" that are now used by many companies as they offer cost effective and easier access to many innovators all around the world. In previous studies, open innovation concept and open innovation tools in the world were examined. Then, an open innovation survey was conducted in top Turkish companies and the needs for open innovation were discussed with relevant stakeholders. Following detailed studies, an open innovation portal structure is designed using Quality Function Deployment (QFD) method. QFD allows to "listen to the voice of customers" where the design characteristics of products/services and customer requirements are mainly detected. It is used in the systematic design phase to evaluate the requirements of relevant stakeholders. The purpose is to follow the product development process of QFD to assure systematic innovation that the stakeholders for open innovation are identified, stakeholder needs are fully elicited and the identified needs are satisfied by the design structure. The resulting portal design has been currently put into practice by an innovation management system software company which is funded by the Turkish Ministry of Science, Industry and Technology. (C) 2015 The Authors. Published by Elsevier Ltd.