Aurelien Mazzella

EXOES is a French company specializing in thermal management and electromobility, founded in 2009 and based in Gradignan, Nouvelle-Aquitaine. It develops, tests, and industrializes advanced technologies to enhance the energy efficiency and safety of electrified vehicles. EXOES is particularly recognized for its leadership in immersion cooling of batteries and electronic components — a breakthrough solution that boosts safety, performance, and battery lifespan. The company was co-founded by Arnaud Desrentes, expert in energy optimization, and Rémi Daccord, thermal engineering specialist. Since its creation, EXOES has built strong partnerships with major OEMs and Tier-1 suppliers across Europe, North America, and Asia. In 2024, EXOES raised €35 million to accelerate its growth in battery and cooling system research, validation, and production. The company now covers the full value chain, from design and prototyping to testing and industrialization, and continues to innovate through: Immersion cooling, ensuring optimal thermal control for safety and durability - Advanced battery testing systems, including performance and abuse tests - Energy efficiency solutions for electric and hybrid vehicles Key figures (2024): - €10M in revenue - 65% of turnover from exports - 60 employees - Over 10,000 hours of testing - 25 major clients - 20+ patents filed Recognized among Europe’s fastest-growing companies by the Financial Times 1000 (2023), EXOES continues to position itself as a reference in sustainable mobility and energy innovation.