Helical Fusion secures USD 5.5M in a Series A Extension round to enhance development of its fusion power technology, bringing total funding to USD 38M.
Amount Raised
$5.5 Million
Round Type
Series A
TokyoManufacturingEnergyRenewable EnergyInvestors
Description
Helical Fusion Co., Ltd. has completed a Series A Extension round, raising USD 5.5 million, expanding its total funding to USD 38 million. The investment includes participation from individual and corporate investors. This funding will accelerate the development of its Helix Program, aimed at creating a commercially viable fusion power plant
Quick answer
Helical Fusion raised $5.5 Million in a Series A round, dated December 5, 2025. Investors: Ecrowd NEXT. Helical Fusion is based in Tokyo, Tokyo, Japan.
- How much did Helical Fusion raise?
- Helical Fusion raised $5.5 Million in a Series A round on December 5, 2025.
- Who invested in Helical Fusion?
- Ecrowd NEXT is named as investors in this round.
- What does Helical Fusion do?
- Helical Fusion is a private fusion energy developer based in Japan, focusing on commercial fusion with a stellarator design.
- Where is Helical Fusion based and how big is it?
- Helical Fusion is based in Tokyo, Tokyo, Japan. Fundz records about 19 employees.
- Who are the decision-makers at Helical Fusion?
- Fundz holds 1 contact at Helical Fusion, including the Co-founder, CEO. Names and contact details are shown to Fundz members.
Source: Fundz verified event record.
Who else raised in Energy and Renewable Energy around the same time
Companies in the same sectors as Helical Fusion that raised within 45 days of this round, from Fundz verified event records.
- CoolSem Technologies raised an undisclosed amount (Pre-Seed) on January 19, 2026.
- Mangrove Lithium raised $85M (Funding Round) on January 15, 2026.
- Amprius Technologies raised $98M (Post-IPO Equity) on January 12, 2026.
- Inox Clean Energy raised $345M on January 8, 2026.
- Energy Vault raised $15M (Convertible Note) on January 2, 2026.
- AMPERA raised $20M on December 31, 2025.
Who to call at Helical Fusion, and when
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- An alert the day Helical Fusion raises, hires an executive or expands, scored against what you sell
- The decision-makers there, with verified emails
- Who you already know at Helical Fusion, from your own LinkedIn network
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