Sonexos

Sonexos develops solid-state acoustic technology that solves low-frequency noise where passive materials and speaker-based ANC fall short. Products in HVAC, appliances, and mobility are now expected to operate more quietly—driven by customer demand and tightening noise-emission standards—yet existing solutions struggle in complex 3-D environments. Our patented Plasmacoustic Metalayer® controls sound directly at the air interface, enabling effective low-frequency noise reduction in a thin, sealed module. Integrated as the Plasmapanel®, it delivers up to ~88% noise reduction in ventilation ducts and up to ~75% in rangehoods and other domestic appliances, while reducing size and weight far beyond what conventional materials can achieve. Sonexos is progressing toward industrial deployment with Tier-1 partners across HVAC, domestic appliances, mobility, and industrial noise control. Our team brings expertise in acoustics, plasma physics, high-voltage electronics, and AI-enabled control to deliver the next step in intelligent noise-management technology. Sonexos is headquartered in Lausanne Switzerland.