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ABOUT US

We decarbonise industry with plasma.

Plenesys is an innovative, multi-award-winning French company with unique expertise and a solid scientific background. Our team is committed to decarbonising industry through plasma solutions.

The Plenesys pilot laboratory: plasma reactors and carbon filters

2018

Founded

Sophia-Antipolis, France

1st

Commercial three-phase AC plasma torch

patented, designed for high pressure

100 kW

Pilot test bench

torch and methane pyrolysis campaigns

2 MW

Plant scale

HyPlasma and TRX75 torch range

3D render of the Plenesys 100 kW three-phase plasma torch

WHAT WE BUILD

Reliable solutions that pair industrial performance with lower impact.

We develop and design innovative, reliable solutions that combine industrial performance with reduced environmental impact. Thanks to our patented plasma solutions, we offer industries decarbonisation alternatives — for the production of clean hydrogen and carbon products, and for the supply of clean heat at very high temperatures for a wide range of industrial applications.

VALUES AND MISSIONS

Decarbonise industry. Build a more sustainable world.

Vision

Industry accounts for almost a quarter of global greenhouse gas emissions. Our vision is to help hard-to-reduce sectors achieve their net-zero ambitions with innovative solutions tailored to diverse industrial applications — concrete answers to the climate targets for 2030, 2040 and 2050.

Mission

We integrate our advanced solutions as clean, sustainable alternatives into industrial value chains, and support players in the energy and heavy-industry sectors in their ecological transition with cutting-edge technologies that reduce their environmental footprint.

Culture

Research and innovation are at the heart of our business, and efficiency, sustainability and accessibility are at the heart of our products. We value the well-being of our employees, in an atmosphere of respect and trust where everyone is encouraged to take initiative and flourish.

Wind turbines at sunset over a field

Since 2018

A continuously growing French deep-tech company developing industrial plasma technologies for the energy transition.

Orange glow of the Plenesys plasma arc seen through the reactor sight glass

Research & development

Three-phase plasma designed for continuous, industrial-scale operation. R&D is the core of the company.

The Plenesys three-phase plasma torch mounted on the reactor

Technological firsts

  • First commercial three-phase AC plasma torch
  • Plasma torch designed for high-pressure operation
  • Continuous arc operation for industrial processes

Sophia-Antipolis, France

Designed, built and run under one roof.

The torches, the reactor and the control system are engineered by the same team that operates the pilot every day.

MEET OUR TEAM

A diverse group of passionate professionals.

Dedicated to bringing creativity and innovation to everything we do.

Dr. Takali S., Plenesys

Dr. Takali S

Dr. Kacem A., Plenesys

Dr. Kacem A

Dr. Damak C., Plenesys

Dr. Damak C

Ben Fraj N., Plenesys

Ben Fraj N

Zaier O., Plenesys

Zaier O

Dr. Mozzafari S., Plenesys

Dr. Mozzafari S

Ben Slimene M., Plenesys

Ben Slimene M

Brichni A., Plenesys

Brichni A

Kerkar A., Plenesys

Kerkar A

Minniti P., Plenesys

Minniti P

Saint-Amand P., Plenesys

Saint-Amand P

Günaçti S., Plenesys

Günaçti S

Our pilot laboratory

A look inside the pilot.

Reactors, gas lines and the supervision desk in Sophia-Antipolis: where our torches and processes are tested and run.

The Plenesys pilot laboratory: plasma reactors and carbon filters
Reactors, torch and carbon filter
Gas feed skid line in the Plenesys pilot laboratory
Gas feed line
Corridor of the Plenesys pilot laboratory with gas bottles
Inside the lab
The Plenesys pilot: carbon filter, reactor skid and control room
Supervision desk

Our expertise

Every discipline a plasma plant needs, in one team.

The same team designs the torch, the reactor, the control system and the software, then runs them on our pilot.

Plasma physics & chemistry

Arc physics and plasma chemistry, from the electrodes to the carbon the reactor produces.

Three-phase AC power

Torches that run directly on grid power at 50 Hz, with no AC/DC rectifier.

Process engineering & CFD

CFD and thermodynamic simulation, feedstock and flows, heat transfer, product separation.

Mechanical design

Equipment for extreme conditions: ASME and CODAP design, finite-element validation.

Automation & control

Industrial PLCs and HMIs, Modbus TCP/IP, OPC UA, EtherCAT and Profinet, factory-tested cabinets.

Data & machine learning

PlaSight: the arc camera, electrode tracking and live process data, on screen and on the phone.

Careers · join the team →

Milestones

From incorporation in 2018 to three continents.

Each step built on the last: the torch first, then the unit around it, then scale.

2018

Incorporated

2020

100 kW torch

2022

First HyPlasma unit

2023

EIC Accelerator winner

2025

MW-scale torch

2026

Technology present in 7 countries on 3 continents

Partner in 2 Horizon Europe consortia

They support us

Commission européenneADEME – Agence de la transition écologiqueMinistère de l'Enseignement supérieur, de la Recherche et de l'InnovationLabellisé par Capenergies 2020Incubateur PACA-EstCommunauté d'agglomération Sophia Antipolis
A microphone on a stand in front of an auditorium

News

Plenesys in the media

Events, announcements and press coverage.

Three engineers looking at a laptop next to equipment in a workshop

Careers

Join us

Tell us what you would build with 3,000°C of electric heat.