The United Kingdom (“UK”) has the second-largest economy in Europe after Germany, with a nominal GDP of GBP 2.749 trillion in 2024 and plays an important role in Japan-UK relations. Even after Brexit, direct investment from Japan exceeded JPY 1.8 trillion in 2023 and further increased to over JPY 2.7 trillion in 2024. In addition, more than 950 Japanese companies have established operations in the UK, and there are currently 64,000 Japanese nationals residing in the country.
The legal systems of the UK and Ireland are distinguished by their foundation in common law, which is similar to that of the United States. This contrasts with the legal systems of Japan and continental European countries, which are based on civil law. While many areas of UK law remain subject to laws and regulations substantially equivalent to EU directives and regulations, the UK has also implemented a significant number of its own laws and regulations post-Brexit, which require careful attention.
In 2025, our firm established its London office as its first permanent presence in Europe. The London office works seamlessly with the European Practice Group to respond promptly to the diverse legal needs of Japanese and international companies. Through maintaining strong relationships with leading law firms across the UK and continental Europe, we provide well-informed advice based on current local developments and market trends.
Kyohei Mizukoshi, Natsumi Tada, Sofía Terol Cháfer (Uría Menéndez) (Co-author)
(April 2022)
Hironobu Tsukamoto, Makoto Ohnuma, Mayuko Tsujimoto (Comment)
Misaki Sumida (Co-author)
Misaki Sumida (Co-author)