Deliverable 2.2 is part of Work Package 2 (WP2) ‘Community building’. WP2 supports the overall objective of NanoCommons to deliver a sustainable and openly accessible nanoinformatics framework (knowledgebase and integrated computational tools, supported by expert advice, data interpretation and training) by building a nanoinformatics for safety community by bringing together scientists from different fields of nanosafety research bridging the gap towards industry and regulatory stakeholders to collectively move forward the field. The community building actions, namely a first set of stakeholder workshops to analyse their needs and to gather feedback on usability of the NanoCommons platform, delivered to date are reported here. Because Deliverable 2.2 builds on Deliverable 2.1 only the new community building activities (since January 2019) are reported here; D2.2 also indicates next steps and planned actions for the next phase of the project.