The Social Sciences & Humanities for Climate, Energy aNd Transport Research Excellence (SSH CENTRE) project brings together 13 leading organisations from across the EU, including: 3 universities, 4 research institutions, 2 stakeholder network organisations, and 4 R&I and communications SMEs. Our partners bring world-leading expertise across SSH and STEM disciplines applied to climate, energy and mobility, covering neutrality, community-led initiatives, heating and cooling, circular economy and sufficiency, and digital technologies. Partners will reach 228,880+ stakeholders by leveraging their significant experience in transdisciplinarity and citizen engagement, and networks that span academia, policymakers at various levels, the private sector, civil society and citizens. Our objectives directly address the call challenge with an aim to support cross-sectoral collaborations and empowerment of citizens and networks towards the development of socially innovative solutions for the EU’s climate transition. Issues related to Open Science, inclusivity and diversity – especially with regards Southern and Eastern Europe and different career stages – are at the heart of the project. SSH CENTRE will meet its objectives through a set of 7 carefully-designed Work Packages. Key activities involve: development of novel SSH-STEM collaborations to facilitate the delivery of the EU Green Deal; SSH knowledge brokerage to support regions in transition; and the effective design of strategies for citizen engagement in EU R&I activities. Outputs include action-led agendas and building stakeholder synergies through regular Policy Insight events. The high-profile virtual SSH CENTRE, and its 660+ members, will thus represent a ‘go-to' gateway for Cluster 5 SSH research excellence, delivering inclusive governance and engagement approaches. The Centre will generate and share best practice for SSH policy advice, overcoming fragmentation to accelerate the EU’s journey to a sustainable future.