The Internet of Things (IoT) continues to evolve rapidly, driven by advances in edge computing and swarm intelligence which enables digital innovation across various sectors worldwide, including mobility, energy, agriculture, manufacturing and more. Over the past two decades, IoT and edge computing have emerged as a critical component of the twin Green and Digital transition, revolutionising business models, technological advancements, and service offerings. The advancement of edge computing and its potential to transform various sectors requires a robust and harmonized approach to standardisation across domains. Geopolitical and competitive challenges further underscore the need for a unified approach to IoT standardisation. By fostering collaboration and knowledge sharing, we can navigate these challenges effectively and ensure that European interests are safeguarded in the global IoT landscape. A common angle on standardisation at the international level should be thought of by collaborating with relevant international entities in the definition/creation of international standards in key emerging technologies, shaping the future of industries and technology users worldwide with a special focus on like-minded countries. This joint workshop, organised by the European Commission with the collaboration of CEI-Sphere and INSTAR, aims to reflect on gaps in standardisation across different domains and relevant industry stakeholders, address the critical questions around international standardization activities and the EU involvement in them, foster cross-fertilization between ongoing projects in IoT and edge computing, and facilitate roadmap brainstorming. The workshop aims to promote a common angle on standardisation at the international level by collaborating with relevant international entities in the definition/creation of international standards in key emerging technologies. Key standardisation committees and initiatives, such as ISO/IEC JTC 1/SC 41 (SC41) and SAREF, will be at the forefront of discussions, with a focus on accelerating and streamlining standardization work across projects. The document provides the presentations used on the second day of the workshop. Discover more: https://eucloudedgeiot.eu/event/workshop-crossdomain-standardisation-instar/