The 12 closest competitors and alternatives to Marathon Fusion, Inc. — ranked by similarity to what Marathon Fusion, Inc. actually does, not by market-cap band.
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Marathon Fusion, Inc. designs, engineers, and scales next-generation technologies to enable the deployment of fusion power plants. Headquartered in San Francisco, California, the company recently closed a seed funding round to advance its fusion fuel processing systems.
Marathon Fusion, Inc. is a company headquartered in United States. Its most recent funding round, Seed, raised $5.9M in July 2024. Xcout tracks 2 named people at Marathon Fusion, Inc., including Kyle Schiller (Co-Founder, CEO).
Every round on record:
| Date | Round | Amount | Investors |
|---|---|---|---|
| Seed | $5.9M | 5 named | |
| SEC Form D filing | $5M | — |
Who invested in each round, lead investors, valuations and the co-investor graph — open the full funding history →
Ranked by semantic similarity — how close each company is to Marathon Fusion, Inc. by what it does, using Xcout's live company graph. Click any company for its full profile, or its competitor set.
Energy
Founded in 2019, Marvel Fusion is Europe's leading fusion energy company, with locations in Munich, Germany. The company unites 75 scientists, engineers, and entrepreneurs to advance fusion energy.
Energy
Deuterium Energetics develops and licenses nano confinement fusion technology to provide a renewable and sustainable power source. The company designs and scales customized energy production systems to serve various use cases, including electric vehicle charging stations, neighborhoods, factories, cities, and spacecraft.
Energy
Acceleron Fusion, Inc. is a clean energy company founded in 2023 and based in Cambridge, Massachusetts, focused on developing commercially viable energy solutions.
Energy Transition
Fuse Energy Technologies Corporation is a U.S.-based fusion defense and renewable energy company founded in 2019 and headquartered in San Leandro, California. The company pursues a pulsed power approach to fusion energy by developing arrays of impedance-matched Marx generators to drive MagLIF targets. Additionally, it provides radiation testing services for national security purposes.
Renewable Utilities
General Fusion Group Ltd is focused on developing fusion energy technology based on Magnetized Target Fusion (MTF), which combines magnetic confinement and mechanical compression to achieve fusion conditions. It operates a large-scale demonstration system, Lawson Machine 26 (LM26), intended to validate elements of its technology and support the development of commercial fusion power plants for electricity generation.
Deep Tech
Astral Systems, operating as Astral Neutronics Ltd, is a Bristol, UK-based fusion technology company founded in 2021 that develops compact Multi-State Fusion (MSF) reactors for medical isotopes and energy applications.
Electrical Equipment
Startorus Fusion develops controlled nuclear fusion energy technology utilizing high-field spherical tokamaks and high-temperature superconductors. The company provides specialized products including signal conditioning solutions, plasma diagnostic systems, magnet power supplies, high-temperature superconducting components, and related software and AI tools for research and energy applications.
Close match by what they do
NT-Tao is developing compact 20 MWe fusion systems designed to deliver firm, on-site power for infrastructure that cannot wait for the grid. Headquartered in Hod Hasharon, Israel, the privately held company focuses on compact fusion power solutions.
Energy
Novatron Fusion Group AB is a Swedish fusion energy company headquartered in Stockholm, Sweden. Founded in 2019, the company specializes in developing a novel technological solution aimed at advancing the industrialization of nuclear fusion energy.
Energy
Pacific Fusion is an American energy company focused on developing fusion-based power sources, using a pulser-driven approach to high-yield, high-gain inertial fusion. The company uses an advanced pulsed power driver known as the impedance-matched Marx generator (IMG), which was co-invented by Pacific Fusion's chief technology officer, Keith LeChien.
Energy
Commonwealth Fusion Systems LLC is developing a process that fuses hydrogen nuclei using powerful, high-temperature superconducting magnets.
Fusion Energy
Kyoto Fusioneering Ltd. is a fusion technology company headquartered in Kyoto, Japan, that develops advanced technologies and infrastructure to de-risk fusion energy.
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