The Plattform Lernende Systeme has published a detailed map of Aritificial Intelligence (AI) research institutions in Germany. It provides a powerful database to look for potential cooperation partners in Germany and allows filtering by topic and type of institution.
Link to the map on German AI research: https://www.plattform-lernende-systeme.de/map-on-ai-map.html?FIT=1
Information about the Japanese AI research landscape can be also found on the website of the AI Japan R&D Network: https://www.ai-japan.go.jp/en