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Startups

Coverage of startups working on fusion energy


Thea Energy Stands Out Among Latest INFUSE Recipients

Sep 15, 2025

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6 min read

Thea Energy Stands Out Among Latest INFUSE Recipients

The stellarator startup secured three awards, more than any other private venture.

General Atomics Invests $20M to Advance Fusion Fuel Cycle Project

Sep 1, 2025

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5 min read

General Atomics Invests $20M to Advance Fusion Fuel Cycle Project

Fusion Fuel Cycles Inc., a joint venture between Canadian Nuclear Laboratories and Kyoto Fusioneering, will use the capital to develop its UNITY-2 facility.

General Fusion’s $22M Lifeline

Aug 25, 2025

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6 min read

General Fusion’s $22M Lifeline

It's a highly dilutive insider round that ensures the startup's near-term survival.

MiRESSO Secures Funding to Scale Beryllium Production

Aug 11, 2025

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5 min read

MiRESSO Secures Funding to Scale Beryllium Production

The Japanese fusion startup has secured an additional ¥1.83 billion (~$12 million) to develop and expand its beryllium refining technology.

Europe Commits €202M to Fusion Materials Research

Jul 21, 2025

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5 min read

Europe Commits €202M to Fusion Materials Research

The milestone cements IFMIF-DONES as a cornerstone of Europe’s fusion roadmap.

Helical Fusion’s Series A Fuels Japan’s Stellarator Ambitions

Jul 14, 2025

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5 min read

Helical Fusion’s Series A Fuels Japan’s Stellarator Ambitions

With support from 21 investors, the round reflects the expanding diversity of stellarator approaches.

Europe’s Largest Private Fusion Raise

Jun 16, 2025

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5 min read

Europe’s Largest Private Fusion Raise

Proxima Fusion's €130 million Series A represents the largest private fusion round in European history.

CFS’s Billion-Dollar Play for the Grid

May 19, 2025

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5 min read

CFS’s Billion-Dollar Play for the Grid

Commonwealth Fusion Systems is raising a massive Series B2 extension round to finance its first commercial fusion power plant.

General Fusion Faces Tough Choices

May 12, 2025

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5 min read

General Fusion Faces Tough Choices

The company has slashed staff and scaled back operations to conserve cash, and is openly seeking new investment or even a potential buyer.

Avalanche Energy Signals Progress with FusionWERX

Apr 14, 2025

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4 min read

Avalanche Energy Signals Progress with FusionWERX

The announcement comes as the startup enters its next fundraising cycle.

Focused Energy's $150M Fundraise

Apr 7, 2025

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5 min read

Focused Energy's $150M Fundraise

The raise would support a new Bay Area laser facility and progress toward key milestones.

Behind Type One Energy’s Big Week of Partnerships

Feb 17, 2025

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4 min read

Behind Type One Energy’s Big Week of Partnerships

After inking a slew of partnerships, what comes next?

Breaking Down Helion's $425M Fundraise

Feb 3, 2025

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4 min read

Breaking Down Helion's $425M Fundraise

New investors, a lofty valuation, and even higher expectations.

Tiger Global vs. General Catalyst: the future of private investment in fusion

Jan 6, 2025

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4 min read

Tiger Global vs. General Catalyst: the future of private investment in fusion

Exploring two different approaches to early-stage investment in fusion startups

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