Articles from Helical Fusion Co., Ltd.
Helical Fusion Co., Ltd. (Head Office: Chuo-ku, Tokyo; CEO: Takaya Taguchi; hereafter “Helical Fusion”), which is developing a next-generation energy source using Japan’s original Helical Stellarator technology to realize commercially viable fusion power plant in the 2030s, announced the completion of its Series A Extension round, raising approximately USD 5.5 million (≈ JPY 870 million).
By Helical Fusion Co., Ltd. · Via Business Wire · December 4, 2025
Helical Fusion Co., Ltd., a world-leading developer of the Helical Stellarator, has completed a critical performance test of a high-temperature superconducting (HTS) coil—a core component of commercial fusion reactors. The company has now commenced manufacturing and construction of its integrated demonstration device, Helix HARUKA.
By Helical Fusion Co., Ltd. · Via Business Wire · October 26, 2025
Helical Fusion Co., Ltd. (“Helical Fusion”), a private fusion energy developer based in Japan, has closed its Series A round, securing JPY 2.3 billion (USD 15 million) in funding. This brings total capital—including grants and loans—to JPY 5.2 billion (USD 35 million), accelerating the “Helix Program”, a roadmap toward a steady-state net power fusion plant in the 2030s.
By Helical Fusion Co., Ltd. · Via Business Wire · July 10, 2025

Helical Fusion has entered a partnership agreement with the National Institute for Fusion Science (NIFS) in March 2024. NIFS has established the "HF Collaboration Research Group" with activities starting in April, special experimental research space has been dedicated onsite at NIFS, which already houses the world's largest superconductor and fusion experimental facility, for Helical Fusion.
With its support from NIFS, Helical Fusion will accelerate the realization of the world's first commercial fusion reactor.
By Helical Fusion Co., Ltd. · Via Business Wire · May 13, 2024

Oct 13th 2023, Helical Fusion Co., Ltd. has been selected by the Japanese Ministry of Education, Culture, Sports, Science and Technology (MEXT) for its total $43 million (JPY 6.5 billion) Small Business Innovation Research*(SBIR) program to develop cutting-edge fusion technologies.
By Helical Fusion Co., Ltd. · Via Business Wire · October 17, 2023

Helical Fusion Co., Ltd. (Head Office: Chuo-ku, Tokyo; CEO: Takaya Taguchi), which aims to develop a helical fusion reactor, has raised funds for the development of a fusion reactor and related technologies with SBI Investment Co., Ltd. as the lead investor.
By Helical Fusion CO., LTD. · Via Business Wire · April 5, 2023
