Around 650 Japanese companies are present in the area, with new arrivals including tech startups and noodle makers.
North Rhine-Westphalia has been a magnet for Japanese companies for over half a century, due to its strategic location in Western Europe.
North Rhine-Westphalia is Germany's most populous state, with about 18 million residents, and stands at the heart of the German economy.
The state generated €871.9 billion ($1.01 trillion) in gross domestic product in 2024, about 20% of the national total.
Germany has overtaken Japan to become the world's third-largest economy.
Author's summary: Japanese firms expand in North Rhine-Westphalia.