The City-Business Collaboration Accelerator (CiBiX) is a platform to increase engagement and collaboration between cities and businesses on city-led urban sustainability challenges. Through CiBiX, ICLEI provides a neutral platform that enables local government to take an active role in presenting their challenges to relevant private sector experts. Together they are able to participate in an early-engagement workshop that helps the city to receive new contributions as well as identify potential solutions and partnerships which they can choose to further explore. For businesses, it provides a strong networking opportunity to connect with local governments and learn exactly what their needs are in a particular sector or challenge scenario. The CiBiX Platform encourages cities to frame their urban challenges with a private sector engagement perspective- helping them to take the first step towards exploring potential partnerships relevant for their needs. The first service is a short-form ideation and early engagement workshop to stimulate an open and transparent interactive dialogue between a lead city and well-matched private sector representatives with a sustainability challenge framing.