Through a dedicated gender capacity-building programme, RE4GREEN strengthened consortium partners’ understanding of feminist and ecofeminist perspectives in research and innovation for the Green Transition. Drawing on an intersectional approach, the programme explored the links between gender, environmental justice, research ethics, and structural inequalities, while encouraging critical reflection on issues such as coloniality, inclusivity, and power dynamics in research. Through tailored training sessions, factsheets, a gender glossary, and practical guidance tools, partners were equipped to integrate gender-responsive and inclusive practices into their work, contributing to a more ethical, equitable, and socially just Green Transition.