EAO GmbH

EAO GmbH is a global manufacturer and developer of premium Human Machine Interface (HMI) products, components, and customized operator panels. Founded in 1947, the Swiss family-owned enterprise supplies high-quality industrial push buttons, keypads, emergency stop switches, selector switches, and interactive control units. The company serves diverse target industries including railway transportation, heavy-duty vehicles, automotive manufacturing, industrial automation, and machinery construction worldwide. EAO provides end-to-end engineering capabilities, offering custom product adaptations, industrial UX design, and complete HMI panel assembly. Its robust switching systems and ergonomic interface solutions are engineered to withstand demanding operational environments in harsh conditions. With headquarters in Switzerland and major operating units in Essen, Germany, EAO delivers reliable control components across Europe, Asia, and North America. Buyers and design engineers rely on EAO for certified HMI series, digital product configurators, and modern vehicle control systems.