Presentation from the Key Impact Pathways for Open Science webinar, that took place as part of the PathOS training series. The session, featuring Lennart Stoy (TGB), Antónia Correia and Pedro Principe (UMINHO), explored the pathways through which Open Science practices create impact. Part of the webinar focused on key findings from the case study, which examined the role of the Portuguese Open Access publication infrastructure (RCAAP) in fostering collaboration between academia and industry. The session concluded with a discussion on future directions and policy implications for enhancing open science's impact, followed by a live Q&A session with the speakers. More about PathOS Training is available here.Watch the recording from the webinar here.