Lumikko Oy

Lumikko Oy is a Finnish family-owned company specializing in thermal management systems for mobile applications and extreme environments. Since 1970, we have helped our customers keep critical systems running reliably—whether by maximizing battery efficiency and charging infrastructure performance or ensuring passenger comfort in trains and trams. Where we operate • Electrification – Battery thermal management and charging systems • Defence – Reliable climate control for vehicles, containers, and shelters • Railway – Advanced HVAC solutions for trains and trams • Service – Lifecycle support and spare parts What we offer • Battery Thermal Management Systems (BTMS) • Vehicle HVAC solutions • Railway HVAC systems • Liquid and air coolers • Tailored thermal management solutions for demanding conditions Our promise: Reliable performance, tailored design, and proven durability—making Lumikko the best partner in thermal management solutions.