Sometimes founders search high and low for the right startup idea, while other times it comes to them. Federico Felici and Jonas Buchli, the visionaries behind Lausanne-based Fusionality, are two of the lucky ones, having identified a critical unmet need at the heart of the global quest for commercial fusion energy. Their new venture, launched this year, aims to provide standardized, specialized control systems and simulation environments that will accelerate the development and deployment of fusion reactors, a sector currently hampered by the bespoke, resource-intensive nature of its core operational technology. The company recently announced a significant $3.7 million (CHF 3 million) pre-seed funding round led by Founderful and Playfair, signaling strong investor confidence in their unique "picks and shovels" approach to the fusion gold rush.
The Foundational Gap in Fusion Development
The genesis of Fusionality can be traced directly to a persistent refrain heard across the nascent fusion power industry. "We would ideally buy many of the components to make our control system, but there isn’t really anybody providing them – and especially there isn’t anybody who speaks the language of fusion," Felici, Fusionality’s CEO, recounted to TechCrunch. This sentiment underscores a significant bottleneck: while numerous startups and national labs are making groundbreaking progress in designing and building fusion reactors, a crucial piece of the operational puzzle – the sophisticated control systems required to manage these complex machines – often remains a costly, custom-built endeavor for each entity.
Fusion power, the Holy Grail of clean energy, promises an almost limitless supply of electricity by replicating the process that powers the sun, fusing light atomic nuclei to release immense energy. This process typically involves heating fuel to extreme temperatures, often hundreds of millions of degrees Celsius, creating a superheated plasma. Maintaining this plasma – controlling its temperature, density, shape, and fuel level – for sustained energy production is an engineering marvel that demands instantaneous, precise decision-making. Any deviation can lead to disruptions, halting the reaction and necessitating complex restart procedures.
For years, both Felici and Buchli, Fusionality’s CTO, have been at the forefront of developing innovative control mechanisms for experimental fusion devices. Felici emphasized their deep understanding of the problem: "We spent quite a lot of our time solving exactly the problems that our customers need to solve." This intimate familiarity with the technical challenges, coupled with the burgeoning commercialization efforts in fusion, created a ripe opportunity. "It felt like the right time," he added, reflecting on the decision to translate their research expertise into a commercial enterprise.
Fusionality’s Strategic Intervention
Fusionality is positioned as a vital component within an emerging supply chain dedicated to serving the rapidly expanding fusion power industry. This ecosystem includes a diverse array of specialized companies, from those developing critical components like Kyoto Fusioneering, which focuses on heat exchangers and other devices to convert fusion energy into grid electricity, to existing manufacturers adapting their high-precision capabilities for fusion applications. However, a glaring void existed for companies specializing in the integrated hardware and software solutions necessary to control the fusion reactors themselves.
The core insight driving Fusionality is the recognition that while each fusion reactor design may be unique, a significant portion of its control system is fundamentally similar. "Across the industry, many companies make their own control systems from scratch," Felici explained. "But actually, 80% of each company’s control system is really exactly the same." This commonality in underlying physics and control principles, despite variations in reactor geometry or confinement approach, represents a massive opportunity for standardization and efficiency.
Fusionality plans to leverage this shared foundation to develop a comprehensive suite of control systems and advanced simulation environments. These modular "Lego blocks," as Felici describes them, can then be fine-tuned and customized by fusion startups to integrate seamlessly with their specific reactor designs. By providing these pre-built, robust, and expertly designed control modules, Fusionality aims to dramatically reduce the development time, cost, and risk associated with bringing new fusion concepts to fruition. This approach not only streamlines engineering efforts but also allows reactor developers to focus their resources on their core innovation – the reactor itself – rather than reinventing essential control infrastructure.
A Deep Dive into the Founders’ Pedigree
The expertise underpinning Fusionality is deeply rooted in cutting-edge fusion research and artificial intelligence. Federico Felici and Jonas Buchli’s collaboration began in a fascinating confluence of academic rigor and technological innovation. They first connected while working on the challenging task of applying artificial intelligence to control an experimental tokamak, a donut-shaped device that uses powerful magnetic fields to confine superheated plasma. Felici was working at EPFL (École Polytechnique Fédérale de Lausanne) in Switzerland, a renowned institution housing one such tokamak and a leading center for fusion research. Buchli, meanwhile, was contributing his expertise from Google DeepMind, a global leader in AI research and development.
This initial collaboration proved fruitful, demonstrating the potential of advanced computational methods in managing the complex dynamics of fusion plasmas. Felici subsequently joined Buchli at Google DeepMind, where he further honed his skills, developing sophisticated simulations and machine learning interfaces specifically tailored for fusion devices. Their combined experience thus spans the critical domains of fusion plasma physics, advanced control theory, and state-of-the-art artificial intelligence – a rare and potent combination that positions Fusionality at the vanguard of this specialized niche.
The Role of AI: A Nuanced Perspective
Given the founders’ background, the role of artificial intelligence in Fusionality’s vision is a natural point of inquiry. Felici offers a nuanced perspective on AI’s current capabilities and future potential in fusion control. While acknowledging that "AI will play an important role in future control systems," he cautions against overstating its immediate readiness for full autonomous control. "I wouldn’t be somebody who advocates for AI to take the role of controlling the entire fusion reactor," he stated.
Instead, Felici envisions AI initially serving as a powerful complementary tool, designed to "complement or enhance or optimize" specific parts of the control system. This could involve leveraging AI for real-time plasma diagnostics, predicting instabilities before they occur, optimizing heating and current drive systems, or refining operational parameters to maximize efficiency and stability. The immense complexity, high stakes, and safety critical nature of fusion reactors necessitate a gradual and carefully validated integration of AI, building trust and robustness incrementally. As more operational data becomes available from experimental and prototype reactors, AI’s role is expected to expand, moving towards more autonomous functions in the long term, but always with human oversight and intervention capabilities.
Focus on Magnetic Confinement and Future Horizons
For its initial market penetration, Fusionality is strategically focusing on magnetic confinement fusion, the most widely pursued approach globally. This method utilizes powerful electromagnets to contain and compress the superheated plasma fuel, keeping it away from the reactor walls and creating conditions ripe for fusion. Tokamaks are the most common magnetic confinement devices, but other designs like stellarators also fall under this umbrella.
The list of magnetic confinement startups is growing rapidly, reflecting significant private investment. Prominent examples include Commonwealth Fusion Systems, which is developing compact, high-field tokamaks; Realta Fusion, exploring innovative magnetic configurations; Proxima Fusion, a European stellarator startup; and Type One Energy, also advancing stellarator technology. By targeting this segment, Fusionality aligns itself with the largest and most well-funded segment of the commercial fusion industry, offering immediate value to a substantial customer base.
While magnetic confinement is the starting point, Felici confirmed Fusionality’s broader ambitions. "Eventually, the company will develop systems for other approaches," he said, hinting at future expansion into areas like inertial confinement fusion (which uses lasers or particle beams to compress and heat fuel pellets) or magneto-inertial fusion, as these technologies mature and gain commercial traction. This long-term vision positions Fusionality as a foundational technology provider across the entire spectrum of fusion energy development.
The Significance of the Pre-Seed Round
The $3.7 million pre-seed funding round from Founderful and Playfair is a crucial validation of Fusionality’s vision and the perceived market need. For a deep tech startup operating in a nascent but capital-intensive sector like fusion, such a substantial early-stage investment underscores strong investor confidence in both the team’s capabilities and the strategic importance of their offering.
Founderful, a Swiss venture capital firm, and Playfair, a UK-based early-stage fund, are known for backing innovative technologies with high growth potential. Their investment in Fusionality reflects a belief that specialized supply chain companies will be instrumental in de-risking and accelerating the path to commercial fusion. This type of funding is not merely capital; it also provides strategic guidance and access to networks, which are invaluable for a young company aiming to integrate into a complex industrial ecosystem.
The funding will enable Fusionality, currently a lean team of seven, to develop a "tightly selected number of technologies," which Felici metaphorically described as their initial "Lego blocks." While he declined to specify the exact technologies, it is reasonable to infer that these will be foundational hardware and software modules, perhaps focusing on critical areas like real-time data acquisition, plasma state estimation, or core control algorithms that are highly transferable across different magnetic confinement devices. "We start with a few of these blocks and then we build out more," Felici explained, outlining a modular and iterative product development strategy. "We have the ambition to serve the really wide range of technology that you need to operate a fusion reactor."
Broader Implications for the Fusion Renaissance
Fusionality’s emergence and successful funding round are indicative of a maturing fusion industry, moving beyond purely scientific exploration towards commercialization. The global fusion energy market is projected to grow significantly in the coming decades, with some estimates placing its value in the hundreds of billions, or even trillions, of dollars once commercial reactors come online. This growth is fueled by massive investments, with private fusion companies alone having attracted over $6 billion in funding since 2021, complementing decades of public sector research.
The transition from individual labs building custom solutions to an integrated ecosystem with specialized vendors is a natural and necessary step for any industry seeking to scale. Fusionality’s role in standardizing control systems is akin to how specialized firms provide avionics for aircraft manufacturers or operating systems for computer hardware companies. By providing robust, off-the-shelf, yet customizable control solutions, Fusionality can significantly reduce the technical hurdles and financial burdens for fusion startups, allowing them to accelerate their development timelines and reduce their time to market.
This specialization also fosters greater reliability and safety. Centralized development of control systems by experts like Fusionality means more rigorous testing, better documentation, and continuous improvement across the industry, rather than fragmented, potentially less robust, custom solutions. Such a development is critical for building public and regulatory confidence in fusion as a safe and reliable energy source.
As the world grapples with climate change and the urgent need for sustainable energy solutions, fusion power holds immense promise. Companies like Fusionality, by tackling critical infrastructure challenges, are not just building a business; they are laying the groundwork for a future where clean, abundant energy is a reality. Their success will not only benefit their customers but will contribute significantly to the global effort to achieve energy independence and decarbonization. The journey to commercial fusion is long and arduous, but with specialized players like Fusionality stepping up to fill crucial gaps, the path ahead appears more defined and achievable.
