Our paper B. Vogel-Heuser, E.-M. Neumann, A. Zoitl, A. M. Gutierrez Fernandez, R. Rabiser, and H. S. Fadhlillah, "An International Case Study on Control Software Development in Large-Scale Plant Manufacturing Companies of One Industrial Sector at Different Locations, opens an external URL in a new window", which resulted from a collaboration of the CD lab with TU Munich (AIS, Prof. Birgit Vogel-Heuser) was now published as part of the Proceedings of the 47th Annual Conference of the IEEE Industrial Electronics Society (IECON). In this paper, we report the results of an international questionnaire study focusing on control software development in large manufactoring companies.