LEROY Automation is a French company specializing in robust, embedded electronic systems and automation solutions for harsh environments, primarily serving the Railway, Energy, and Military/Defense sectors, designing products for Train Control & Monitoring (TCMS), signaling, and industrial power substations, known for durable COTS (commercial-off-the-shelf) components like VCUs, RIO modules, and gateways meeting strict railway standards (EN 50155, etc.). They offer full product lifecycle support, from design to maintenance, partnering with major industry players for reliable performance in extreme conditions.