Quantum Software Consortium (QSC) is a Gravitation Project of QuSoft (University of Amsterdam, Centrum Wiskunde & Informatica), Leiden University and QuTech (Delft University of Technology, Netherlands Organization for Applied Scientific Research). Developing new quantum software, by exploiting the counterintuitive effects of quantum mechanics, requires a unison of ideas from computer science, mathematics, and quantum physics. Large-scale efforts in the Netherlands and around the world are in progress to develop quantum technologies, as a full-blown quantum computer and large-scale quantum internet will have unprecedented computational and communication abilities. In order to achieve this move forward, forces must be combined. Therefore QSC is building a new research community in the Netherlands in Quantum Information Science.