HSL Technologies (SAS HySiLabs) is a French deeptech company based in Aix-en-Provence, developing low-carbon hydrogen and silica production, storage, and transport solutions. With its patented HydroSil technology, HSL enables on-demand hydrogen release from a safe, stable, and easily transportable liquid carrier while producing low-carbon silica that can be reused in various industrial applications.



By bridging the hydrogen and silica markets, HSL creates a unique synergy between clean energy and sustainable materials. The company aims to accelerate the decarbonization of industry and mobility through a circular supply chain built on large-scale production and decentralized release units.