In recent years, there has been an increasing focus on energy technology innovation as a means to reach energy policy goals and meet ambitious climate targets. International collaboration in research, development and demonstration can play an important role in identifying priorities, challenges and innovation gaps, as well as sharing best practices to improve performance, reduce costs and deploy key energy technologies. Given the growing complexity and interconnection of energy systems, co‑operation and networking can increase effectiveness, facilitate action and maximise the impact of innovation efforts. Many partnerships around the world were designed to accelerate energy innovation, such as the IEA Technology Collaboration Programmes (TCPs) or more recently Mission Innovation (MI). Important contributions are also being made regionally, for example under the EU framework, and through initiatives with a mandate broader than innovation, for example the Clean Energy Ministerial (CEM). However, despite the central role of innovation in global energy transitions and the potential of international collaboration, there is limited information available on the full landscape of multilateral initiatives and how they interact. As a result, the IEA is seeking to map and analyse energy technology innovation efforts, facilitate communication, and foster strategic engagement across platforms and mechanisms. This immediate analysis aims to: inform discussions on how to support efficient co‑operation and information sharing across various mechanisms; compare the structure and activities of four selected mechanisms: TCPs, MI, CEM and the European Technology and Innovation Platforms (ETIPs); and lay out opportunities for future work.