Commonwealth Fusion Systems

CFS is building a mission-driven team of top talent from around the world committed to delivering clean, limitless fusion energy to the world. A career at CFS is more than a job, it’s a mission to develop a fundamentally new source of clean energy to combat climate change. CFS team members thrive in a fast-paced, dynamic environment and have demonstrated exceptional results through a range of different pursuits. We all align with our company values of integrity, execution, impact, and self-criti

Google and Commonwealth Fusion Systems (CFS) announced a new global milestone, a bold partnership to develop, deploy and scale clean, secure fusion power. We expect it’ll cement CFS leadership in commercializing the technology.

A: Fusion, the physical process that powers the sun, occurs when light atoms like hydrogen combine to form heavier atoms like helium. That releases tremendous amounts of energy. Fusion is hard to reproduce on Earth, but CFS machines use a design called a tokamak to do so. Fusion releases no carbon dioxide or other greenhouse gases. Because fusion is clean, reliable, and safe, with abundant fuel, it could be the last energy source humanity needs.

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Fusion power will draw together many technologies, from cryogenics and artificial intelligence to neutron detectors and high-voltage transistors. It will also draw together many types of people and organizations, from many backgrounds and across many locations — from U.S. National Labs with billion-dollar budgets to foreign research organizations to three-person startups.

The world's largest and leading commercial fusion energy company

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The world's largest and leading commercial fusion energy company

Realta Fusion announces a partnership with Madison Gas and Electric to explore a 200-megawatt fusion power plant in Wisconsin. The agreement includes an undisclosed equity investment, access to interconnection sites, engineering and technical assistance, and financing for the eventual plant; the partners are exploring construction in the mid-2030s. The deal comes as utilities seek reliable, fossil fuel-free baseload power amid rising electricity demand, including from AI data centers.

Sep 2026 · TechCrunchNews article

Commonwealth Fusion Systems may pursue an IPO within two or three years as it advances its fusion projects. The company appoints former Moderna CFO Lorence Kim, who helped take the biotech company public. CFS targets a Sparc demonstration-reactor launch later this year and scientific breakeven next year, while developing its commercial-scale Arc plant in Virginia for the early 2030s. It has sold Google half the output of its first power plant.

Jul 2026 · TechCrunchNews article

Commonwealth Fusion Systems announces a $1 billion funding round, bringing its total capital raised to $4 billion. The company is building Sparc, its demonstration reactor, and finalizing the design of Arc, a commercial power plant planned for Virginia; it expects Sparc to reach scientific breakeven in 2027. Eni has agreed to buy more than $1 billion of Arc’s electricity, and Google has committed to purchase 200 megawatts.

Jul 2026 · TechCrunchNews article

Gigascale, led by former Meta CTO Mike Schroepfer, raises a $250 million fund to back founders rebuilding the physical economy. It targets energy, grid infrastructure, and critical minerals, while also considering physical AI opportunities. The fund continues Gigascale’s climate-tech strategy and is its first early-stage fund to include institutional investors; the firm’s past investments include Commonwealth Fusion Systems, Heron Power, Mill, and Form Energy.

Jun 2026 · TechCrunchNews article