This OpenAIRE1 report is based on input from the publishing and library community collected during and in connection with the OpenAIRE workshop on “Sustainable non-APC Open Access Publishing Models”, held at Bielefeld University on February 26-27, 2019.2 It seeks to: - Showcase and review selected non-APC and collaborative publication models in the context of the current Open Access publishing landscape. - Suggest a set of recommendations aimed at research funders, policymakers and the publishing community, for moving towards a more sustainable and diverse Open Access publishing future, one where collaborative and non-APC publishing could represent a viable, cost and resource effective alternative to APC-based business models for Open Access publishing. In the current landscape collaborative and non-APC Open Access publishing channels are facing several challenges: Predictable access to funding and resources to finance these models and medium to long term planning and stability. Moreover, visibility and reputation of these channels compete with APC-based and subscription channels for the research community’s perception of quality and prestige as well as for the awareness of research funders and institutions.