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Marathon Fusion

Oakland, US · Founded 2022 · Delaware corporation · 34 employees on LinkedIn · 1 known investors

Marathon Fusion develops fuel cycle technologies for fusion energy, including neutron-driven transmutation to produce radioisotopes and gold, advanced pumping for tritium burn efficiency, and isotope separation for fusion and industrial applications. The company supplies critical materials and processing technologies to the fusion energy industry.

Founders & leadership

Marathon Fusion was founded in 2022 by Adam Rutkowski and Kyle Schiller.

AR
Adam RutkowskiCo-founder
KS
Kyle SchillerCo-founder

Investors · 1

Reported raises · per SEC filings

Form D private placements

$5M disclosed across 1 round · 2022

$5MraisedFeb 2024 · 25 investors · Other Technology
Rule 506(b)
Officers, directors & promoters on the filing
  • Adam RutkowskiExecutive Officer, Director
  • Kyle SchillerExecutive Officer, Director
Amount sold
$5M
First sale
Dec 2022
Incorporated
Corporation, Delaware, 2022
Federal exemptions
06b
Full filing on SEC EDGAR ↗

Source: SEC EDGAR Form D. Amounts as filed; amended filings shown once at their latest values.

Competitors · 8

by search overlap
Pacific Fusion44 shared keywordsPacific Fusion is developing a high-gain pulsed magnetic inertial fusion system designed to achieve net facility gain, using a modular fast electric pulser, a meter-scale fusion chamber, and small fuel containers. The company aims to produce affordable, on-demand fusion power to meet global energy demand and address climate change.
Helion Energy37 shared keywordsHelion develops fusion energy systems designed to generate clean electricity for commercial use. The company builds pulsed magnetic fusion prototypes with applications for industrial and commercial electricity generation.
F35 shared keywordsFuse Energy develops fusion energy technology, with work spanning hardened electronics and radiation testing (HEART) and recycling of radioactive waste, aiming to provide an on-demand clean energy source. It brings together a team across engineering, fusion science, energy policy, and manufacturing.
General Fusion28 shared keywordsGeneral Fusion develops Magnetized Target Fusion (MTF) technology, combining plasma physics, mechanical compression, and liquid metal systems to build a practical, cost-competitive fusion power plant. The company operates large-scale demonstration machines, including LM26 at its Vancouver facility, on a roadmap toward a first fusion plant producing energy in the mid-2030s.
Commonwealth Fusion Systems24 shared keywordsCommonwealth Fusion Systems develops commercial fusion power plants using high-temperature superconducting magnet technology to provide grid-scale energy.
Avalanche Energy20 shared keywordsAvalanche Energy develops compact fusion technology to generate high-energy neutrons for materials testing, radioisotope production, and advanced nuclear battery systems serving defense, space, and commercial power applications. The company also provides high-voltage vacuum components and operates FusionWERX, a commercial-scale fusion testing facility.
Proxima Fusion17 shared keywordsProxima develops stellarator fusion power plants designed to deliver clean, grid-ready electricity. The company builds on stellarator research to commercialize fusion energy for global power generation.
Xcimer17 shared keywordsXcimer is a laser fusion energy company developing a low-cost, high-energy excimer laser architecture. Its Phoenix system, in Denver, is an electron-beam-pumped excimer laser that demonstrates long-pulse operation and Stimulated Brillouin Scattering pulse compression to validate its fusion energy approach.

Companies competing with Marathon Fusion for the same Google search keywords, organic and paid, via search-intersection analysis.

Frequently asked questions

What does Marathon Fusion do?
Marathon Fusion develops fuel cycle technologies for fusion energy, including neutron-driven transmutation to produce radioisotopes and gold, advanced pumping for tritium burn efficiency, and isotope separation for fusion and industrial applications. The company supplies critical materials and processing technologies to the fusion energy industry.
Who founded Marathon Fusion?
Marathon Fusion was founded by Adam Rutkowski, Kyle Schiller in 2022.
Who are Marathon Fusion's investors?
Marathon Fusion's investors include Übermorgen Ventures.
How much funding has Marathon Fusion raised?
Marathon Fusion has disclosed $5M raised across 1 round.
Where is Marathon Fusion headquartered?
Marathon Fusion is headquartered in Oakland, US.