T4IS2026 Strategy Dialogue: 'Capital Without Borders?' — Japan's Deep-Tech Discount and the $550 Billion US-Japan Initiative

Key Takeaways from the Release:

- The actual binding constraints for cross-border investment were not capital or the quality of the thesis, but 'trust.' The room converged on the point that interpersonal and organizational trust is the real bottleneck. - The 'Japanese deep-tech discount' exists but is situational. The moment a Japanese founder incorporates in Delaware and operates as a US company founded by Japanese individuals, the discount largely disappears. - Standard US mechanisms, such as SAFEs and convertible notes, do not exist as off-the-shelf products in Japan. Moving from Japan to the US is a hand-crafted process for each case. - The $550 billion US-Japan strategic investment initiative was announced without a concrete execution plan. 'There is money. Now, what do we do?' was a shared reaction from both sides. The view was expressed that the announcement is a political signal, not a means of deployment. - The accelerator for cross-border investment was not capital, but talent. The thesis of 'Returnees'—that the strongest Japanese founders and operators are those who have lived abroad—was presented.

Session Overview:

Socius Inc. (Headquarters: Chuo-ku, Tokyo; Representative Director: Sera In) held a private session, 'Strategy Dialogue,' at the invitation-only executive summit 'Tech for Impact Summit 2026' (https://tech4impactsummit.com/ja), held at Kioi Conference, Tokyo Garden Terrace Kioicho on April 26, 2026. This release summarizes the discussion of one of these sessions, 'Capital Without Borders?'

This session was conducted under the Chatham House Rule. Therefore, this release records the themes, points of discussion, and proposals, and does not attribute specific statements to individuals or organizations. The speakers of this session who agreed to have their profiles disclosed can be confirmed on the official session page (https://tech4impactsummit.com/ja/sessions/capital-without-borders/).

Participants included leaders in cross-border venture and growth investment, with primary corridors in the US, Japan, and the EU, also incorporating perspectives from South Korea, Taiwan, Southeast Asia, and Africa. The discussion included B2B funds from Silicon Valley, Japanese automotive CVCs, observers from Japanese PEs, CVCs of Korean gaming companies, generalist venture bases in the US, bilingual B2B ventures rooted in Japan, Taiwanese serial entrepreneurs, regional funds in Southeast Asia, and founders of African health-tech companies expanding into emerging markets as partners of Japanese VCs. The realities of cross-border investment in the current geopolitical environment were discussed.

Discussion Highlights:

1. Real Cross-Border Cases—What worked and what didn't?

The session began with each participant bringing specific cases as a basis for learning, rather than abstract principles. A B2B platform headquartered in Southeast Asia initially planned European expansion prior to entering the US, but changed course when it became clear that US revenue growth was significantly faster, and the founder moved to the US. The lesson shown was an explicit benchmark filter that required competitiveness against Silicon Valley alternatives globally for every dollar invested outside the US.

A deep-tech satellite imagery company in Europe was invested in about seven years ago by a fund with Japanese LPs, overriding strong opposition from the Japanese investment committee at the time ('There are many Silicon Valley alternatives, so why invest in a European company?'). This case recently generated a multi-year commercial contract with a Japanese heavy industry corporate LP. However, this came after seven to eight years of relationship building. On the other hand, an investment in a US mobility company by a Japanese CVC during the pandemic, although the strategic partnership plot was strong on paper, suffered in actual execution due to a lack of resources, leadership changes within the CVC, and shallow accountability for post-investment integration.

2. Trust as a Binding Constraint for Cross-Border Investment

The room converged on the point that interpersonal and organizational trust, not capital or thesis quality, is the true bottleneck. A US participant spoke about a deliberate effort to build relationships with Japanese LPs over roughly 10 years.

Another observation was presented by a participant from Taiwan. Chinese software companies, due to concerns over data sovereignty...