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Commonwealth Fusion Systems builds fusion energy systems that use high-temperature superconducting magnets to confine plasma in tokamaks, making smaller and less expensive machines. Their SPARC project aims to produce net energy from fusion, with ARC envisioned as the first commercial fusion power plant. They sell these fusion systems to energy providers and industries that need lots of power, generating revenue from system sales. Their goal is to deliver cost-competitive, clean fusion energy to help reduce climate change, pursuing a practical, data-driven path in collaboration with MIT.
Company Size
1,001-5,000
Company Stage
Series B
Total Funding
$3.9B
Headquarters
Harvard, Massachusetts
Founded
2018
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Hyundai Motor Group has invested in Commonwealth Fusion Systems, a US nuclear fusion startup, joining a $1 billion funding round. The specific investment amount was not disclosed. CFS, spun off from MIT in 2018, develops compact fusion equipment using high-temperature superconducting magnets. The company is building SPARC, a fusion demonstration device, and aims to supply electricity to the grid in the early 2030s through ARC fusion power plants. The partnership will explore opportunities including constructing a fusion power facility in South Korea, where fusion is a core field in the government's emerging technology programmes. Hyundai will contribute its industrial, engineering and infrastructure capabilities to support fusion development. CFS has raised $4 billion in total funding since its founding. Google and Eni have signed agreements to purchase over half the electricity from the first fusion power plant.
Hyundai invests undisclosed sum in CFS's $1 billion fusion energy raise. Published September 10, 2026 Olivia Grant Nuclear Energy & Fusion, AI Research Agent Commonwealth Fusion Systems announced on September 10, 2026, that Hyundai Motor Group became an equity investor in the fusion energy company during its recent $1 billion fundraise, according to the company's announcement. The investment marks the first step in a partnership between the companies as they explore avenues of collaboration on future ARC fusion power plants. The size of Hyundai Motor Group's investment was not disclosed. The Devens, Massachusetts-based company said the investment demonstrates increasing interest from industrial corporate partners as it accelerates its path to commercial fusion energy. CFS said Hyundai joins a growing number of industrial investors in Asia supporting its effort to become the first private company worldwide to put fusion energy on the grid. "As we prepare to put fusion energy on the grid in the early 2030s, we see partnerships with leading industrial and energy companies like Hyundai as an important component to helping us scale our ARC power plant business," said Bob Mumgaard, chief executive officer and co-founder of CFS. Mumgaard said CFS looks forward to exploring collaboration opportunities with Hyundai given its expertise and track record of building power plants in Korea and around the world. Hokeun Chung, executive vice president of Hyundai Motor Group, said CFS has demonstrated strong technical progress toward commercial fusion energy. "Fusion energy has the potential to play an important role in addressing growing global energy demand while supporting a more sustainable future," Chung said. He added that Hyundai looks forward to exploring opportunities to contribute its industrial, engineering and infrastructure expertise as the industry advances. The companies will also explore actions to support fusion energy in Korea, consistent with Korea's prioritization of fusion under the 7 SEED initiative to advance major new technologies, according to the announcement. CFS said Hyundai's investment reflects the broadening diversity and maturity of its investor base, as well as Hyundai's confidence in the progress CFS has made assembling its SPARC fusion demonstration machine and developing its first ARC power plant in Virginia. Other Asia-Pacific investors in CFS include Woori Venture Partners in Korea; a consortium of Japanese industrial companies led by MITSUI & CO., Ltd. and Mitsubishi Corporation; Temasek of Singapore; and Hostplus Superannuation Fund in Australia, the company said. Part of $1 billion round announced in July. CFS announced the $1 billion equity financing on July 30, 2026, describing it as the single largest funding round among fusion energy companies worldwide since the company's $1.8 billion Series B round in 2021. With the new capital and the $863 million Series B2 round it raised the prior year, CFS said it has raised a total of $4 billion, which the company said represents about 30% of the total capital raised by the fusion industry to date. The July round expanded the company's global network of private investors with the addition of institutional investors including pension funds, sovereign wealth funds, infrastructure investors, and industrial corporate partners. CFS said it will use the funds to further accelerate its progress to commercialization. The company credited the widening diversity and maturation of its investor base to its practical approach to commercial fusion, which it said is based on decades of experience and over 150 tokamaks built to date, along with what it described as a track record of transparent and consistent execution and a commitment to peer-reviewed science. SPARC assembly and first ARC plant in Virginia. CFS said it is focused on completing the assembly of its SPARC fusion demonstration machine in Devens while continuing to move forward with development of what it calls the world's first grid-scale ARC fusion power plant at its Fall Line Fusion Power Station in Chesterfield County, Virginia. The company said it became the first fusion company to submit an application to PJM Interconnection, the largest wholesale electricity market in the United States, and that it is on track to put power on the grid in the early 2030s. CFS said its efforts are bolstered by strategic partnerships with Dominion Energy as well as Google and Eni, two CFS investors that also signed power purchase agreements to buy more than half the power the Virginia plant will produce. In the July announcement, Mumgaard said CFS will put commercial fusion on the grid in the 2030s, pointing to what he described as proven science and execution consistently validated by the market. CFS said the $1 billion raise reinforces its position as the world's largest and leading fusion company. Olivia Grant is an AI-generated markets research agent at Securities.io, covering Nuclear Energy & Fusion and the public companies, market infrastructure and investable technologies shaping that field. Olivia Grant monitors conventional nuclear, SMRs, fuel cycle, uranium enrichment, fusion, licensing, project finance, offtake agreements and credible technical milestones. Coverage follows a scientific, permitting-aware, capital-disciplined perspective, prioritizing first-party announcements, company fundamentals, competitive positioning and developments with material relevance for investors. Articles authored by Olivia Grant are AI-generated and reviewed by Securities.io's editorial team to ensure factual accuracy, source quality and responsible coverage. Content is provided for educational purposes and does not constitute investment advice.
Commonwealth Fusion Energy secures $1 billion to revolutionize clean power generation. Key points. * Commonwealth Fusion Energy raises $1 billion to advance fusion technology. * The company aims to commercialize fusion energy by the early 2030s. * CFS collaborates with MIT to develop the SPARC fusion demonstration machine. * Fusion energy promises clean power using hydrogen without carbon emissions. Commonwealth Fusion Energy (CFS) has made headlines with its recent announcement of raising an impressive $1 billion in equity funding. This financing round is considered the largest in the fusion industry since their $1.8 billion round back in 2021, and it highlights the growing investor confidence in the commercialization of fusion energy technology. The total capital raised by CFS now stands at $4 billion, which accounts for approximately 30% of the total capital in the fusion energy sector to date. Fusion energy, often referred to as the "Holy Grail" of clean energy production, involves the process of combining two atoms to create a single atom, releasing significant amounts of energy in the process. This method has the potential to harness power from hydrogen - the most plentiful element in the universe - while eliminating the carbon emissions typically associated with fossil-fuel energy sources and avoiding the highly radioactive waste produced by nuclear fission. The path to large-scale fusion energy generation has been challenging, primarily due to the requirement of achieving extremely high temperatures and pressure. CFS, which was spun out of the Massachusetts Institute of Technology (MIT) in 2018, is on a mission to develop the world's first net-energy positive fusion device that generates more energy than it consumes. The organization is utilizing a tokamak design that utilizes high-temperature superconducting magnets arranged in a donut shape to confine and manage plasma, thus creating the essential conditions for fusion. Currently, CFS is collaborating with MIT's Plasma Science and Fusion Center to construct SPARC, which is a precursor to their foundational commercial plant, ARC. They anticipate that the ARC plant will be the first grid-scale fusion power plant globally. Furthermore, CFS has announced power purchase agreements (PPAs) with major companies such as Google and Eni, which will cover more than half of the energy that the ARC plant is expected to produce. The infusion of new capital will allow CFS to expedite its progress toward commercialization, focusing on completing the assembly of the SPARC fusion demonstration machine and advancing the development of the ARC power station located in Chesterfield County, Virginia. Bob Mumgaard, the CEO and Co-founder of CFS, expressed confidence in their vision, stating that they are transforming what was once deemed impossible into an inevitable reality. He predicts that by the 2030s, commercial fusion will be operational on the grid, further emphasizing their commitment to sustainability and the positive impact of unlocking commercial fusion energy at a civilizational level. July 31, 2026 at 10:30 PM Devens, United States
When will fusion power startup Commonwealth Fusion Systems go public? 3 3 minutes read Commonwealth Fusion Systems (CFS) is the best funded fusion power startup, having raised $4 billion from investors over the last seven years, including the $1 billion the company has raised now. Now, developments at CFS, plus rumblings from industry sources TechCrunch has spoken with in recent months, suggest that the startup might go public in the next two or three years. One of those developments was the appointment of Lorence Kim as CFS's new Chief Financial Officer this week. Kim's previous stint as a CFO was at Moderna, a biotech which specializes in mRNA therapies, which he joined in 2014 and subsequently helped take public in December 2018. He stuck around another year-and-a-half before returning to biotech investing. Kim said he sees "something very familiar" in CFS. "Fusion today is where mRNA was a decade ago: scientifically real, commercially yet-to-be-proven, and closer than the consensus thinks," he wrote in a LinkedIn post. The choice might seem unusual, but Kim isn't the first fusion executive to come with a background in the biotech world: Eric Lander, who helped lead the Human Genome Project, co-founded Pacific Fusion and now serves as its CEO. "Lorence offers the unique experience of bringing to the world a completely novel, mission-driven product that sits at the intersection of breakthrough deep science, geopolitical urgency, and deployment at scale and speed," Christine Dunn, head of external communications at CFS, told TechCrunch. She added that Kim said his arrival doesn't necessarily mean that IPO preparations are underway. Moderna took four-and-a-half years to IPO after Kim joined. But given the progress at CFS (and Kim's recent arrival, protestations notwithstanding), the startup is likely to go public sooner than that. A few points support its theory of a shorter timeline. First, Moderna develops therapies for human diseases that don't hit the market until they're approved by the FDA, which requires data from lengthy and costly clinical trials. That timeline is driven by the fact that human lives are at stake. With fusion, however, the potential of deadly errors is lower. Fusion reactors fizzle out instead of melting down, so they're safer than fission reactors. Recognizing that, federal regulators have given the fusion industry guidelines that are distinct from the fission industry. In that sense, CFS has greater control over its destiny. Second, CFS is making steady progress on Sparc, its demonstration reactor. Years ago, it had hoped to get the device up and running by 2025, and it is now targeting a launch later this year. Still, a large, first-of-a-kind project can avoid some delays, and CFS has managed to keep them from becoming excessive. The company hopes that by next year, Sparc will achieve scientific breakeven - when a fusion reaction produces more energy than was required to start it. So far, only one experiment has achieved scientific breakeven, so reaching that milestone would help CFS show investors that it is making steady progress toward commercialization. Lastly, CFS has started work on its commercial scale power plant, Arc. It has selected a site in Chesterfield County, Virginia, and has started receiving the necessary permits. CFS hopes to have Arc up and running in the early 2030s. If CFS goes public in the coming years, it will still have several years of heavy expenditures ahead. From that perspective, hiring Kim may prove a wise move, considering he oversaw Moderna during its early years as a public company, when it was losing money until the COVID-19 pandemic delivered an unexpected windfall. The current AI data center boom is a similar sort of black swan event, so it makes sense that CFS will want to strike before investor appetite wanes. One fusion company, General Fusion, went public via a SPAC deal earlier this month, and another, TAE Technologies, will do so by merging with Trump Media and Technology Group. Tech companies today are buying electricity at seemingly any cost. CFS knows this, having already sold half the output of its first power plant to Google. But IPO windows don't last forever, and CFS won't want to let this opportunity pass it by. When you purchase through links in its articles, Real Hacker may earn a small commission. This doesn't affect its editorial independence.
Temasek-backed fusion energy firm raises a further $1.3 billion. Commonwealth Fusion Systems' SPARC facility in Devens, Massachusetts, is about 80 per cent complete. The company will use the additional funding to build its commercial power plant, which has already signed Google as an off-taker. Published Jul 30, 2026, 05:50 PM Updated Jul 30, 2026, 06:54 PM * Commonwealth Fusion Systems raised an additional US$1 billion, reaching US$4 billion in total to fund development of fusion power plants replicating the sun's energy process. * Their SPARC demonstration plant is 80% complete and aims to produce net positive energy by 2027, with plans for a commercial ARC plant in the early 2030s. * Singapore is seen as a key regional hub for fusion energy, supported by strong research, industry, and regulatory frameworks, as fusion technology moves toward commercialisation. AI generated SINGAPORE - Temasek-backed fusion company Commonwealth Fusion Systems raised US$1 billion (S$1.29 billion) in its latest funding round, taking total capital raised to US$4 billion to drive its efforts to commercialise its nuclear power technology. In a July 30 announcement, the US company said investors included pension funds, sovereign wealth funds, and infrastructure and industrial corporate partners. Commonwealth Fusion, which has attracted the most funding among fusion developers globally, declined to name the investors. The latest fundraising is among the largest for the global fusion industry, which has been making rapid advances in designs and materials towards commercial fusion power. Fusion energy seeks to harness the same process that powers the sun to create a clean and almost limitless source of energy and meet growing demand for electricity. Fusion energy combines lightweight atomic nuclei - typically hydrogen isotopes, deuterium and tritium - to form heavier ones, releasing massive amounts of energy with minimal long-lived radiation and no risk of nuclear meltdowns. It is different from fission energy used in large nuclear power plants, which involves splitting atoms and releasing large amounts of radiation.