![[Commonwealth Fusion Systems Logo.png|300]] Company website: https://cfs.energy ### Introduction Commonwealth Fusion Systems (CFS) was founded in 2018 as a spin-out from the Massachusetts Institute of Technology (MIT), with headquarters in Devens, Massachusetts. Co-founded by Bob Mumgaard, Dennis Whyte, Dan Brunner, Martin Greenwald, Zach Hartwig, and Brandon Sorbom—researchers from MIT's Plasma Science and Fusion Center—the company aims to accelerate the commercialization of fusion energy through innovative high-temperature superconducting (HTS) magnets, building on decades of government-funded tokamak research to create compact, cost-effective fusion systems. CFS's mission is to deliver clean, abundant fusion energy fast enough to address humanity's biggest challenges, particularly climate change, by providing carbon-free power that is safe, secure, and limitless. Key focus areas include developing the SPARC demonstration machine to achieve net energy gain and scaling to the ARC power plant for grid integration, while fostering a global supplier ecosystem and collaborating with research institutions to transition fusion from science to practical energy deployment. ### Key Products and Technology - **SPARC®**: A compact high-field tokamak reactor designed as the world's first net-energy-producing fusion machine; features HTS magnets enabling smaller size and lower costs compared to traditional designs; aims for plasmas that generate more energy than consumed, with a focus on rapid innovation incorporation; applications include demonstrating commercial viability and paving the way for fusion power plants. - **ARC™**: A commercial fusion power plant following SPARC, capable of producing hundreds of megawatts of net electricity for the grid; utilizes tokamak design with HTS magnets for efficiency; emphasizes safety through inherent fusion physics (no meltdown risk) and modularity for mass production; applications span powering homes, businesses, data centers, and communities with decarbonized energy. - **HTS Magnets**: Core enabling technology using Rare Earth Barium Copper Oxide (REBCO) superconductors; strongest fusion magnets developed, operating at high fields (up to 20 tesla) with improved efficiency over low-temperature alternatives; design allows for compact reactors without extensive cryogenic cooling; applications in SPARC, ARC, and broader fusion scaling. - **Alcator C-Mod Basis**: Builds on MIT's record-setting tokamak for plasma pressure; informs SPARC's physics with high-magnetic field confinement; focuses on fuel efficiency via deuterium-tritium reactions and safety through magnetic containment; applications in risk retirement for commercial fusion paths. ### Team and Leadership - **Bob Mumgaard, CEO and Co-founder**: Plasma physicist with a PhD from MIT; led commercialization efforts at MIT's Plasma Science and Fusion Center; drives CFS's strategy for rapid fusion deployment. [@BobMumgaard](https://x.com/BobMumgaard) - **Brandon Sorbom, Chief Science Officer and Co-founder**: Holds a PhD in nuclear science from MIT; specializes in fusion reactor design and magnet technology; oversees scientific advancements in HTS and plasma physics. - **Alex Mozdzanowska, Chief People Officer**: Experienced in scaling high-tech organizations; focuses on talent acquisition and culture to support CFS's growth to over 1,000 employees. - **David Tressler, Chief Financial Officer**: Background in finance for energy and tech firms; manages funding and operations for commercialization. - **Christopher P. Liddell, Board Member**: Former CFO of Microsoft and General Motors, and White House official; provides strategic oversight on scaling and policy. - **Dennis Whyte, Co-founder**: Head of MIT's Plasma Science and Fusion Center; expert in fusion engineering; contributes to technical advisory. ### Recent News and Developments (2025) | Date | Event | Details | |------|--------|---------| | November 1, 2025 | Construction Milestone at Devens Campus | Arrival of a key vacuum vessel component for SPARC, advancing assembly of the prototype fusion machine. | | October 22, 2025 | Partnership with Google DeepMind | Collaboration to apply AI for plasma control and simulation in SPARC, accelerating fusion timelines. | | October 16, 2025 | AI-Driven Fusion Advancement Announced | DeepMind partnership detailed, focusing on reinforcement learning for real-time plasma optimization. | | October 7, 2025 | MIT Prediction Model for Tokamaks | New model to improve plasma behavior predictions during rampdown, potentially benefiting CFS designs. | | September 30, 2025 | DOE Validates Magnet Technology | Independent review confirms CFS's HTS magnets meet performance milestones for SPARC. | | September 25, 2025 | New Customer for Fusion Plant | Agreement to supply power from first commercial plant to a Virginia utility, expanding market reach. | | September 22, 2025 | $1 Billion+ Power Purchase Agreement with Eni | Long-term deal for fusion power, strengthening commercialization path. | | September 2, 2025 | Investment and Collaboration with NTT | Funding and partnership to advance fusion industrialization in Japan. | | August 28, 2025 | $863 Million Series B2 Funding Round | Capital raised to accelerate SPARC construction and ARC development. | | June 30, 2025 | Strategic Partnership with Google | Global agreement for fusion power development and deployment, including investment boost. | | June 23, 2025 | Virtual Tour of Commercial Campus | Showcase of Devens facilities, highlighting progress toward SPARC assembly. | | January 12, 2025 | 2025 Assembly Focus Announced | Emphasis on SPARC prototype construction throughout the year. | ### Partnerships and Collaborations - **Google**: Strategic global partnership signed in June 2025 for developing and scaling fusion power; includes investment and power purchase commitments for data centers. - **Google DeepMind**: October 2025 collaboration using AI models for plasma simulation and control in SPARC, aiming to speed net energy achievement. - **Eni**: Expanded strategic alliance with a $1 billion+ power purchase agreement in September 2025; ongoing since 2018, focusing on fusion commercialization and decarbonized electricity supply. - **NTT Group**: September 2025 investment and collaboration to industrialize fusion in Japan, supporting early commercialization efforts. - **Dominion Energy**: Utility partnership for power from CFS's first commercial plant in Virginia, announced in 2025. - **Materion Corporation**: Supply agreement for beryllium fluoride, essential for fusion energy technology components. - **MIT**: Foundational collaboration on HTS magnet development and plasma research, ongoing since CFS's spin-out. - **SIMIC**: Manufacturing partner for key components like SPARC's vacuum vessel, with executive visits in 2025 to advance production. ### Closing Note With over $2.93 billion in total funding, including a recent $863 million Series B2 round, CFS is in the advanced prototype stage building SPARC for net energy by 2027 and anticipates a positive outlook for commercial ARC plants delivering grid power in the early 2030s. *Report generated November 03, 2025*