From prototype design to small or large-scale production, we master the various stages that can bring your project to life: lithium-ion batteries, propulsion and hybridisation systems, on-board electronics, specialised machinery, sub-assemblies and industrial components.
Our companies, which specialise in the development and manufacture of innovative technologies for the mobility of tomorrow, are here to support you: GCK Battery, the expert in the design and manufacture of lithium-ion batteries in France, Solution F, the powertrain and systems specialist, and GCK EMI, which specialises in electromechanical equipment and on-board electronics.
Our expertise covers every stage, from development to manufacturing. Whether you need standard or customised solutions, we can support you in a wide range of sectors: light mobility, road and off-road transport, rail, maritime, industry, tools, energy storage and even motorsport.
Proud of our know-how, our commitment is clear: to provide batteries that are 100% tailored to your specific needs.
GCK Battery, based in Lempdes and Brassac-les-Mines (63), assembles all our batteries in France, guaranteeing quality and proximity to best meet your expectations.
Our expertise covers the design and production of advanced embedded electronics technologies for the mobility ecosystem. We develop innovative solutions such as transmission control units (TCUs), vehicle control units (VCUs), hydrogen control units (HMUs) and IoT devices. Our expertise also extends to power electronics: high-performance motor inverters and on-board chargers. These cutting-edge technologies optimise the efficiency and reliability of modern propulsion systems, paving the way for more sustainable and intelligent mobility.
Our company, GCK EMI, based in Brassac-les-Mines (63), supports you in your projects with its expertise and more than 30 years of experience in the field.
Our expertise covers all propulsion technologies: electric, hybrid, hydrogen and many others. Our ability to design from scratch allows us to develop innovative, tailor-made solutions for each project. Our team of simulation and systems experts is on hand to carry out feasibility studies, preliminary sizing, system architecture, functional simulation and FEM and CFD calculations. To validate concepts and hypotheses, we also offer prototype application software development and 3D printing for rapid prototyping.
Our company, Solution F, based in Venelles (13), draws on its heritage in motorsport to put nearly 40 years of expertise at the service of its customers.
In the demanding aerospace sector, expertise in special machines plays a crucial role in ensuring the safety, reliability and performance of equipment. Our know-how focuses on the development of specific equipment, tailor-made to meet the unique needs of the aerospace industry, particularly in the field of transmission systems.
Our company, Solution F, positions itself as a trusted partner for our customers by relying on essential values such as proximity, agility and experience.
Our company, GCK EMI, based in Brassac-les-Mines (63), stands out for its comprehensive expertise in the production of industrial sub-assemblies and components.
We support our customers at every stage of the process, from initial design to delivery of the final product, including manufacturing and assembly. To meet the varied needs of modern industry, we have developed a range of specialised workshops, each equipped with the latest technology.
Our strength lies in our ability to coordinate these different workshops smoothly and efficiently. This synergy allows us to control the entire production chain, ensuring rigorous quality control at every stage and optimising manufacturing lead times.
Design and production of carbon-free vehicles: innovative vehicles manufactured in single units or small series, and heavy vehicle retrofit.
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Discover our additional services with our clean energy production, storage and distribution solutions, as well as our new mobility laboratory.
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