The document discusses an EOSC-Pillar survey that aims to gather information from various stakeholder groups about national research data infrastructures and services across Europe. The survey covers topics like business models, access policies, and data management. It was designed by a multi-disciplinary team to collect tailored information from groups like e-infrastructures, research institutions, and funding bodies. The first usage of the survey results will be by the EOSC Executive Board's Landscape Working Group to analyze the existing national landscape of research data activities, initiatives, funding, and policies.