Our mission
"To deliver power generation technology which meets both environmental and economic demands in the long term"
Efficient. Safe. Clean. Resilient.
⚙️
Engineering
Breakeven
While the race to build the first fusion power plant is underway, progress remains constrained.
Improvements in energy yield are limited by plasma instability, which causes energy to leak from the reactor core.
Current solutions for containing the energy are expensive, with no realistic way to scale.
🔄
Commercial
Breakeven
We are developing IsoZero: a radical approach to energy confinement.
IsoZero is designed to tackle instability at the source, minimising energy loss and maximising energy output per unit cost.
We believe that IsoZero will take fusion energy generation from engineering feat to commercial success.
🌱
Abundant
Growth
With advanced computational physics, we can demonstrate how IsoZero reshapes the limits of conventional confinement.
Together, we can build a stable foundation for abundant power generation that grows with both financial & environmental sustainability.
Our Solutions
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✏️ IsoZero ©
Our innovative energy confinement method.
A ground-breaking magnetic field configuration designed to minimise energy losses from fusion reactor cores.
From 2030, we plan to make our technology available for next-generation fusion reactors.

🛡️ Simulation Software
We are developing advanced computational tools to model and optimise IsoZero. A digital twin for future reactors enables us to iterate rapidly and de-risk efficiently.
From 2030, we will launch our software ConfiNeX as a vital design and analysis tool in an expanding fusion industry.

⚛️ Reactor Engineering
Using our technology stack, we aim to design a new generation of fusion reactors, aligned with future resource availability, engineering capabilities and climate challenges.
In the 2040s, we aim to provide a reactor design licensed and built worldwide.
What We Offer
Why Atum?
⚖️
Intrinsically Stable
⚡
Compact & Scalable
📈
Financially Sustainable
A stable plasma core leads to minimal energy leakage
Less leakage means smaller, more efficient reactors
Stable, compact reactors clear the path for commercial fusion
Our Team
Deep technical expertise & global experience
James Leetch, PhD
Co-founder
James is responsible for the development of IsoZero and fusion plasma modelling for Atum Energies. He holds a PhD in computational physics from the University of Southampton, with experience as a researcher in Singapore's Agency for Science, Technology & Research at the Institute of High Performance Computing.

Jessica Onie
Co-founder
Jess is responsible for nuclear/chemical science, communications and business development. She has experience at the Australian Nuclear Science and Technology Organisation, a Master's degree in Green Chemistry from Imperial College London, and a degree in economics.

Christian Kuhlmann
Founding Partner
Christian is responsible for electrical hardware design. With an MEng from the University of Southampton, he has several years of experience working as an Electronic Engineer at the United Kingdom Atomic Energy Authority and Senior Control Systems Engineer at the United States Department of Energy's Oak Ridge National Laboratory.


🚀
2040s
Scale
Using our IsoZero blueprint, we will help produce scalable power plants ready for the 2050 energy transition.
🎯
2030
Launch
We will launch a licensable reactor design alongside modelling and analysis software for instability suppression.
We are building proprietary computer simulations to help us design, optimise, and validate our reactors.
Simulations safeguard prototyping and a proof of concept with minimal capital at risk.
Atum is raising funding to support the work and computational facilities for this phase of the project.
📍
2026
Build
IsoZero was first developed: a pioneering plasma confinement concept to build scalable fusion energy infrastructure.
Our ethos is foundational stability, with innately stable geometry at its core. We know that instability creates uncertainty, losses, and a plethora of risks.
✅
2025
Founding
🗺️ Roadmap
Key milestones
