On 30 July, Japan officially became associated with Horizon Europe. With a population of 123 million, Japan is now the most populous country involved in this initiative, enriching Europe’s network of scientific collaboration with one of the world’s most advanced research and innovation ecosystems.
This agreement enables Japanese researchers and organisations to participate in Horizon Europe on equal terms with those from EU Member States and other associated countries. They will have the opportunity to lead and join international research consortia, access EU funding, and collaborate with prominent research institutions to address pressing global challenges.
“Science thrives when talent, ideas and innovation cross borders. As Horizon Europe’s 23rd associated country, Japan strengthens a growing global community that believes openness, excellence and international cooperation are essential to turning research into innovation and innovation into prosperity,” said Ekaterina Zaharieva, Commissioner for Startups, Research and Innovation.
Horizon Europe, with a budget of €93.5 billion for 2021–2027, is the EU’s key research and innovation programme. Japan has joined as the 23rd associated country, further strengthening a partnership that began in 2011. This collaboration explores synergies in various fields, benefiting both EU and Japanese citizens.
Negotiations on Japan’s accession were successfully concluded by the European Commission and the Government of Japan in December 2025. Following these negotiations, transitional arrangements have been in place since January 2026, allowing Japanese entities to apply for Horizon Europe Pillar II calls and to be evaluated as prospective beneficiaries. Japan’s association marks a significant advancement in the EU–Japan Strategic Partnership and highlights a shared commitment to scientific excellence, innovation, and open, rules-based international research collaboration.
The EU and Japan are poised to enhance further their cooperation in addressing common global challenges, particularly in the digital transition, health, and technologies that promote climate neutrality. Japan’s association encompasses Horizon Europe Pillar II, which has a budget of €52.4 billion. This pillar funds multinational research and innovation projects to tackle major societal challenges in climate, energy, health, and the digital economy.
Furthermore, Japan will contribute financially to the programme’s budget to support the participation of its entities. In addition, Japanese participants will retain access to other components of Horizon Europe available to third countries, including the Excellent Science and Innovative Europe pillars, as well as Marie Skłodowska-Curie Actions, which support doctoral education, postdoctoral training, and international research collaboration.
