On a mission to accelerate fusion companies by bridging world-class science with deployable, industry-ready solutions.
Fusion Industry Partner
We provide a Modular Diagnostics Platform for next-gen MCF devices and integrated modeling of tokamak plasma, diagnostics, and actuators for tokamak design, engineering, and operations.
What We Do
We work at the core of Instrumentation and Control (I&C) for the fusion industry — bringing together plasma simulations, diagnostics, and control into reliable, fully integrated solutions.
Tokamak integrated modeling
We partner with MCF device builders from their first step through implementation, providing end-to-end design and integrated modeling across the full system lifecycle.
In 2023–2026, we performed hundreds of specialized simulations, 10+ feasibility studies of new tokamaks, and supported 5 tokamak startups from concept through design.
Learn moreModular Diagnostics Platform
End-to-end diagnostics for next-generation MCF systems and future Fusion Power Plants in one seamless I&C solution, fully supported and supply-chain ready.
Essential measurements and plasma parameters, captured and delivered through one integrated data acquisition system to control and safety.
Learn moreSpecialized fusion software
Our team combines experienced plasma scientists with professional software engineers to develop high-quality software for integrated modeling and design, fusion data visualization and analysis, plasma parameter prediction and control, etc.
Explore NSFsim, our advanced tokamak simulator, other software, and our open source tools for the fusion community.
Learn moreMachine learning solutions
AI and ML are essential to match the complexity and speed of fusion. We develop RL-based plasma controllers, neural network reconstruction, surrogate models, and discharge scenario builders — grounded in physics and validated on real devices.
Our ML engineers work hand-in-hand with plasma physicists, with results demonstrated on DIII-D and other devices.
Learn morePlasma control solutions
Real-time plasma control solutions built for next-generation fusion devices — combining physics-based modeling, conventional controllers, machine learning and reinforcement learning, and proven experience at operating tokamaks.
From a controller development and testing environment to a custom plasma control system for your device.
Learn moreFusion Experts
Our team comprises plasma physicists, fusion engineers, software developers, and machine learning specialists. Based across the EU and UK, with headquarters in Luxembourg.
Meet our leadership team →
Next Step Fusion team
Next Step Fusion team
Next Step Fusion team
Next Step Fusion team
Next Step Fusion team
Next Step Fusion team
Why Next Step Fusion?
Deep expertise across the full fusion I&C stack — plasma science, engineering, diagnostics, software, control, and machine learning — all under one roof.
Fully fusion-focused
100% of our work is dedicated to fusion energy. No diluted priorities — just deep, sustained expertise in the field.
Proven plasma scientists
Our physicists come from leading public research organizations with hands-on experience at JET, DIII-D, MAST, ITER, JT-60SA, ST40, COMPASS, and more.
Experienced fusion engineers
Real device experience across tokamak operations, diagnostics development, design and engineering, and control system deployment.
Advanced integrated modeling
State-of-the-art simulation workflows for tokamak design and scenario development, built on deep expertise with tools like NSFsim, TGLF, TRAVIS, ASCOT5, and others.
Plasma diagnostics
End-to-end diagnostics solutions for next-generation fusion devices — from concept and design through commissioning and real-time data acquisition.
Plasma control
Advanced plasma control systems combining physics-based modeling, reinforcement learning, and real device experience at DIII-D and other tokamaks.
Partners & Collaborators
Get in Touch
Whether you're exploring a collaboration, planning a new device, or looking for a quote — we'd like to hear from you.
Contact information
Email
[email protected]
Address
33 Rue Du Puits Romain
L-8070 Bertrange
Luxembourg