The NanoCommons deliverable D2.1 – 1st annual conference and nanoexploitation day, stakeholder workshop and user call is now available to view online. The report is available under the Creative Commons Attribution 4.0 International Licence (CC BY 4.0). This deliverable is part of Work Package 2 (WP2) Networking Activity 1: Community building, and it presents the actions performed by the NanoCommons consortium to address the need to build a nanoinformatics for safety community and bring together researchers from the different fields of nanosafety research in order to collectively move the field forward and bridge the gap between academic nanosafety informatics research and industry / regulatory adoption of the various nanoinformatics tools and approaches developed and/or made accessible via NanoCommons. The community approach will facilitate two-way communication between the various stakeholders and drive the co-development of nanoinformatics solutions for nanomaterials safety assessment and facilitate safe design of nanomaterials.