The target of ULTIMATE project is to act as a catalyst for “Water Smart Industrial Symbiosis” (WSIS) in which water/wastewater plays a key role both as a reusable resource and as a vector for energy and materials to be extracted, treated, stored and reused within a dynamic socio-economic and business oriented industrial ecosystem. Effective communication and dissemination of the progress and results of ULTIMATE is of major importance to maximise the impact of the project and achieve long-lasting results. D6.1 ‘Dissemination, Communication & Collaboration Master Plan’ is a framework for communication, dissemination and collaboration planned within ULTIMATE that empowers all partners to engage with multiple audiences during the lifecycle of the project. It describes the overall communication strategy of the consortium, and functions as a guide for project partners when publishing about or on behalf of the project. This baseline document for communication and dissemination activities will be updated twice during the project lifetime – in M25 and M40, as the project partners get new insights about the major target groups and stakeholders, identify early adopters and further synergy partners. Almost all project partners have been allocated resources in the WP6 to communicate, connect, create synergies, and support learning and policy making in order to maximise the visibility of the project. WP6 will be coordinated by the European Science Communication Institute (ESCI), with substantial strategic input from KWR and WE, plus support from all partners.