This deliverable describes the activities and main results of PHUSICO's Policy Business Forum (PBF), whose overall aim was to explore innovative ways to strengthen the science-policy-business nexus to exploit opportunities and overcome barriers in NBS implementation. Moreover, its specific aims were to deliberate on possible improvements of existing policies, instruments, and initiatives to improve NBS implementation, and to propose new ideas for governance and policy structures that can lead to greater success on NBS acceptance and application. The PBF included NBS experts and knowledgeable stakeholders at the national, European and international scales. During the PHUSICOS project, over 70 stakeholders were involved in PBF deliberations through interviews, web meetings/e-consultations, and workshops. The key themes discussed in the deliberations included governance innovation for NBS, the role of the public and private sectors in mainstreaming NBS, and capacity-building.