The European Social Survey (ESS) is a recurring cross-national survey that measures attitudes in 36 countries across Europe. It has completed 8 rounds of surveys since 2002, collecting over 380,000 interviews. The ESS is working to increase access and collaboration around social survey data through initiatives like the EOSC pilot project and SSHOC project, which aim to publish ESS data with APIs and metadata standards to support findability and reuse. The ESS also collaborates directly with related studies in different countries to align methods and standards to increase the scientific impact of comparative social research.