The Make Data Count Summit took place in Washington DC on 12-13 September 2023 as a forum for dedicated discussion on data metrics and the evaluation of data usage. The event brought together representatives across research and research-supporting organizations, government and policy institutions, and infrastructure providers to discuss immediate needs to drive broader development and adoption of data metrics. We include the slides for the talks presented at the event: Welcome by Iratxe Puebla, DataCite ‘Defining the Need for Open Data Metrics’ by Daniella Lowenberg, University of California Office of the President ‘Forging the path forward: Global Data Citation Corpus’ by Matt Buys, DataCite and Carly Strasser, Chan Zuckerberg Initiative ‘Democratizing Data’ by Julia Lane, NYU Wagner Graduate School of Public Service ‘Five years since the US Evidence-act’ by Nancy Potok, NAPx Consulting and New York University ‘Meaningful Data Metrics: The State of Evidence from Bibliometrics Studies on Data Reuse’ by Stefanie Haustein, University of Ottawa and ScholCommLab, Nicolas Robinson-Garcia, University of Granada, Mike Thelwall, University of Sheffield, and Thed van Leeuwen, Centre for Science and Technology Studies, Leiden University