JETRO states that investment from the Middle East into Japan has been steadily expanding, primarily driven by sovereign wealth funds. A JETRO official named PIF, QIA and Mubadala as expanding in the Japanese market. No source cited here gives a Gulf-origin deal value for Japan.
Which Gulf funds are expanding
At a Dubai forum co-hosted with Japan Exchange Group, a JETRO official named PIF, QIA and Mubadala as expanding in gaming, finance, digital infrastructure and clean energy. JETRO’s own wording is that Middle East investment into Japan is "primarily driven by sovereign wealth funds".
The evidence is qualitative. JETRO names funds and sectors, not amounts.
Mubadala and the Akita data-centre report
The Taipei Times reported on 7 August 2026, citing Bloomberg, that Mubadala was weighing up to ¥1 trillion (US$6.33 billion) for a 500 MW data-centre project in Akita Prefecture. A Mubadala spokesperson declined to comment. This is a report of a possible investment, not an announced deal.
Who leads cross-border deals
JETRO’s latest Invest Japan report says cross-border M&A in Japan was mainly led by European and US funds. It does not name Gulf investors as lead.
JPMorgan’s mid-year outlook says sovereign funds are often cornerstone partners in large transactions, particularly in infrastructure and technology. That is a global statement, not a Gulf-specific one.
Greenfield investment at a record
JETRO reports greenfield investment in Japan at a record US$31.6 billion, up 15.4%, with data-centre projects prominent. The report does not break this figure down by investor origin.
Japan-wide totals: context only
Two Japan-wide M&A totals for 2025 circulate: US$385.9 billion, which JPMorgan’s Japan page gives as Japan-related M&A citing Dealogic, and US$359 billion (¥60 trillion), which a Financier Worldwide panellist attributes to a JPMorgan estimate. Neither page explains the gap, and Financier Worldwide states no database or screen for its figure. Both cover all buyers, so a Gulf pitch must not quote either as a Gulf figure.
Data limits
- No page cited here gives M&A value by acquirer nationality. The Financier Worldwide piece is a panellist’s comment, not a dataset.
- Japan’s inward FDI stock stood at 53.3 trillion yen at the end of 2024. That is a stock at a different date from the 2025 deal flows above.
- The government raised its 2030 inward FDI stock target from 100 trillion to 120 trillion yen. That is a policy target, not a forecast.
- JETRO says the government amended the inward investment cabinet order in April 2025, adding sectors that need prior notification and screening. The page does not give transaction counts.
- The Akita report rests on press coverage; the Mubadala spokesperson declined to comment.
- The sources do not give Japan deals by acquirer nationality or direct investment by country from Japanese official statistics.
Editorial assessment
The points that follow are an interpretation by the desk; the sources do not draw them.
- The public sources show intent from Gulf funds, not volumes. Fundraisers should bring their own Gulf-origin deal data for Japan.
- The Akita project is a press report of a possible investment, not a confirmed one.
- The Japan-wide totals are context only: US$385.9 billion is attributed to Dealogic, is "Japan-related" and carries an as-of date; US$359 billion is Financier Worldwide’s attribution.