Kyoto Fusioneering Secures 25.7 Billion Yen in Series D Funding to Accelerate Fusion Commercialization

Overview of the Funding

Kyoto Fusioneering has secured a total of 25.72 billion yen (including credit and loan facilities) in the first close of its Series D round. The funding breakdown consists of 16.72 billion yen in equity and 9 billion yen in debt finance. This brings the company's cumulative equity funding to 32.98 billion yen.

About Kyoto Fusioneering

Kyoto Fusioneering is a technology company developing essential core systems for the commercialization of fusion energy, including plasma heating devices, tritium fuel cycles, tritium breeding blankets, and thermal cycles. Operating independently of specific reactor designs, the company provides integrated technological solutions for fusion power demonstration projects and commercial plants worldwide.

Purpose of Funding and Future Outlook

The newly raised capital will be allocated primarily to the following three initiatives:

1. Accelerating the "UNITY™ Program" Integrated Demonstration: Advancing tests across three global hubs in Japan, Canada, and the United States to drive development toward power generation demonstration.

2. Establishing Mass Production for Gyrotrons: Strengthening the supply capacity of its world-class plasma heating systems, the "Gyrotron," with the goal of achieving short-term revenues on the scale of 10 billion yen.

3. Accelerating Global Business Expansion: Strengthening operational frameworks across its offices in five countries to build supply chains and play a central role in industrialization.

List of Underwriters (Investors)

This funding round saw participation from policy and infrastructure-related institutions such as the Green Transformation (GX) Promotion Organization, the Development Bank of Japan, and East Japan Railway Company, alongside global investors including IMM Investment Japan, SiteGround Capital, and Minerva Growth Partners. Existing investors such as SMBC Venture Capital, JIC Venture Growth Investments, and MUFG Bank also made follow-on investments.