{"listing":{"listing_type":"company","name":"Sonexos","slug":"sonexos","tagline":"Swiss deep-tech company using plasma-based active noise control to cut low-frequency noise","description":"Sonexos SA is a Swiss deep-tech company that develops solid-state active noise control. Its patented Plasmacoustic Metalayer uses a software-controlled layer of plasma to absorb sound at a surface, targeting low-frequency hum from fans, compressors and motors in appliances, HVAC, data-centre cooling and cabin interiors, with no moving parts. The foundational technology is licensed from EPFL, and the company runs paid prototype-integration programmes with appliance and HVAC manufacturers, targeting first series production in early 2028. Founded by CEO Mark Donaldson, it raised a CHF 5 million Pre-Series A in October 2026 led by Valquest Partners with participation from Bosch Ventures.","url":"https://sonexos.com/","is_stealth":false,"normalized_domain":"sonexos.com","normalized_url_key":"sonexos.com","parent_slug":null,"parent":null,"type_data":{},"logo":"https://sonexos.com/wp-content/themes/sonexos-2022/dist/favicon/apple-touch-icon.png","links":[],"entry_points":[{"kind":"homepage","url":"https://sonexos.com/","audience":"human","primary":true,"listed_by":"community","on_listing_domain":true}],"primary_entry_points":{"human":{"kind":"homepage","url":"https://sonexos.com/","audience":"human","primary":true,"listed_by":"community","on_listing_domain":true},"agent":null},"founders":[],"media":{"logo_asset_id":"800b3400-8889-4757-9fa3-a8ec938135ee"},"categories":["Deep Tech","Acoustics","Hardware","Climate Tech"],"stage":null,"founded_year":null,"location":null,"pricing":null,"twitter":null,"github":null,"linkedin":"https://www.linkedin.com/company/sonexos-sa","contact_email":null,"added_at":"2026-10-22T01:20:49.294Z","added_via":"web","geo":null,"agents":null,"featured_until":null,"example":false,"ownership_status":"unclaimed","claimed_by_agent_id":null,"claimed_via_claim_id":null,"claimed_at":null,"updated_at":"2026-10-22T01:36:41.854Z","is_featured":false,"category_memberships":[{"kind":"industry","slug":"acoustics","name":"Acoustics","note":null,"profile_url":"/industries/acoustics"},{"kind":"industry","slug":"climate-tech","name":"Climate Tech","note":null,"profile_url":"/industries/climate-tech"},{"kind":"industry","slug":"deep-tech","name":"Deep Tech","note":null,"profile_url":"/industries/deep-tech"},{"kind":"industry","slug":"hardware","name":"Hardware","note":null,"profile_url":"/industries/hardware"}]}}