{"id":40143,"date":"2026-10-26T13:43:04","date_gmt":"2026-10-26T12:43:04","guid":{"rendered":"https:\/\/ggba.swiss\/?p=40143"},"modified":"2026-10-26T13:43:05","modified_gmt":"2026-10-26T12:43:05","slug":"sonexos-raises-chf-5-million-to-bring-plasma-based-noise-reduction-to-home-appliances","status":"publish","type":"post","link":"https:\/\/ggba.swiss\/en\/sonexos-raises-chf-5-million-to-bring-plasma-based-noise-reduction-to-home-appliances\/","title":{"rendered":"Sonexos raises CHF 5 million to bring plasma-based noise reduction to home appliances"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\"><a href=\"https:\/\/sonexos.com\/\">Sonexos<\/a> has raised CHF 5 million in new equity financing in a Pre-Series A round led by <a href=\"https:\/\/www.valquestpartners.com\/\">Valquest Partners<\/a>. <a href=\"https:\/\/bosch.ventures\/\">Robert Bosch Venture Capital<\/a> (Bosch Ventures) also participated, along with industry angels and private investors. Fadi Noureddine, founder and managing partner of Valquest Partners, joins the Sonexos board. The funds will help move the company from engineered prototypes to qualified industrial products, including paid prototype-integration programs with appliance and HVAC manufacturers. The most advanced programs target series production in early 2028.<\/p>\n\n\n\n<h4 class=\"wp-block-heading\">A plasma layer that absorbs sound<\/h4>\n\n\n\n<p class=\"wp-block-paragraph\">Sonexos&#8217; patented Plasmacoustic Metalayer uses a software-controlled plasma layer to absorb low-frequency sound at a surface. It is thin and light, and has no moving parts. Its core technology is licensed from <a href=\"https:\/\/www.epfl.ch\/en\/\">EPFL<\/a>. Under specific test conditions, prototypes reached noise reductions of up to 20 dB in ventilation systems and 16 dB in domestic appliances. Mark Donaldson, founder and CEO, who has about three decades of experience in active noise control and previously founded SoundChip, says engineers have always had to trade space and weight for silence, and that the technology removes this trade-off.<\/p>\n\n\n\n<h4 class=\"wp-block-heading\">Industrial partners and data-center cooling<\/h4>\n\n\n\n<p class=\"wp-block-paragraph\">Sonexos works with <a href=\"https:\/\/www.st.com\/\">STMicroelectronics<\/a> through its ST for Startups program, with Roj, a subsidiary of the Vandewiele Group, for manufacturing, and with SIT on data-center fans, the first member of the Sonexos Certified Fan Partner Program. A second opportunity, the Plasmapanel Radial Active Silencer, targets data-center cooling fans, and a first working demonstrator is planned for CES 2027.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Sonexos, a deep tech company based in Lausanne, has raised CHF 5 million in a Pre-Series A round led by Valquest Partners with Bosch Ventures, to industrialize its Plasmacoustic Metalayer, a thin plasma layer that absorbs low-frequency noise.<\/p>\n","protected":false},"author":6,"featured_media":40144,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"inline_featured_image":false,"mc4wp_mailchimp_campaign":[],"footnotes":""},"categories":[839],"tags":[943,907,894,886],"class_list":["post-40143","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-tech-en","tag-advanced-manufacturing","tag-engineering","tag-financing","tag-rd"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.7 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Sonexos raises CHF 5 million to cut noise with plasma | GGBa<\/title>\n<meta name=\"description\" content=\"Sonexos has raised CHF 5 million in a round led by Valquest Partners, with Bosch Ventures, to industrialize its plasma-based noise reduction.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/ggba.swiss\/en\/sonexos-raises-chf-5-million-to-bring-plasma-based-noise-reduction-to-home-appliances\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Sonexos raises CHF 5 million to cut noise with plasma | GGBa\" \/>\n<meta property=\"og:description\" content=\"Sonexos has raised CHF 5 million in a round led by Valquest Partners, with Bosch Ventures, to industrialize its plasma-based noise reduction.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/ggba.swiss\/en\/sonexos-raises-chf-5-million-to-bring-plasma-based-noise-reduction-to-home-appliances\/\" \/>\n<meta property=\"og:site_name\" content=\"Greater Geneva Bern area\" \/>\n<meta property=\"article:published_time\" content=\"2026-10-26T12:43:04+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2026-10-26T12:43:05+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/ggba.swiss\/app\/uploads\/2026\/10\/Sonexos-Plasma-Panel-1180x811-1.png\" \/>\n\t<meta property=\"og:image:width\" content=\"1180\" \/>\n\t<meta property=\"og:image:height\" content=\"811\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/png\" \/>\n<meta name=\"author\" content=\"Pierre-Yves Oehrli\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"Pierre-Yves Oehrli\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"2 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/ggba.swiss\\\/en\\\/sonexos-raises-chf-5-million-to-bring-plasma-based-noise-reduction-to-home-appliances\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/ggba.swiss\\\/en\\\/sonexos-raises-chf-5-million-to-bring-plasma-based-noise-reduction-to-home-appliances\\\/\"},\"author\":{\"name\":\"Pierre-Yves Oehrli\",\"@id\":\"https:\\\/\\\/staging.ggba.swiss\\\/en\\\/#\\\/schema\\\/person\\\/0b2e6d04131e3d01237dcb741fa33d41\"},\"headline\":\"Sonexos raises CHF 5 million to bring plasma-based noise reduction to home appliances\",\"datePublished\":\"2026-10-26T12:43:04+00:00\",\"dateModified\":\"2026-10-26T12:43:05+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/ggba.swiss\\\/en\\\/sonexos-raises-chf-5-million-to-bring-plasma-based-noise-reduction-to-home-appliances\\\/\"},\"wordCount\":250,\"image\":{\"@id\":\"https:\\\/\\\/ggba.swiss\\\/en\\\/sonexos-raises-chf-5-million-to-bring-plasma-based-noise-reduction-to-home-appliances\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/ggba.swiss\\\/app\\\/uploads\\\/2026\\\/10\\\/Sonexos-Plasma-Panel-1180x811-1.png\",\"keywords\":[\"Advanced Manufacturing\",\"Engineering\",\"Financing\",\"R&amp;D\"],\"articleSection\":[\"Tech\"],\"inLanguage\":\"en-US\"},{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/ggba.swiss\\\/en\\\/sonexos-raises-chf-5-million-to-bring-plasma-based-noise-reduction-to-home-appliances\\\/\",\"url\":\"https:\\\/\\\/ggba.swiss\\\/en\\\/sonexos-raises-chf-5-million-to-bring-plasma-based-noise-reduction-to-home-appliances\\\/\",\"name\":\"Sonexos raises CHF 5 million to cut noise with plasma | GGBa\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/staging.ggba.swiss\\\/en\\\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\\\/\\\/ggba.swiss\\\/en\\\/sonexos-raises-chf-5-million-to-bring-plasma-based-noise-reduction-to-home-appliances\\\/#primaryimage\"},\"image\":{\"@id\":\"https:\\\/\\\/ggba.swiss\\\/en\\\/sonexos-raises-chf-5-million-to-bring-plasma-based-noise-reduction-to-home-appliances\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/ggba.swiss\\\/app\\\/uploads\\\/2026\\\/10\\\/Sonexos-Plasma-Panel-1180x811-1.png\",\"datePublished\":\"2026-10-26T12:43:04+00:00\",\"dateModified\":\"2026-10-26T12:43:05+00:00\",\"author\":{\"@id\":\"https:\\\/\\\/staging.ggba.swiss\\\/en\\\/#\\\/schema\\\/person\\\/0b2e6d04131e3d01237dcb741fa33d41\"},\"description\":\"Sonexos has raised CHF 5 million in a round led by Valquest Partners, with Bosch Ventures, to industrialize its plasma-based noise reduction.\",\"breadcrumb\":{\"@id\":\"https:\\\/\\\/ggba.swiss\\\/en\\\/sonexos-raises-chf-5-million-to-bring-plasma-based-noise-reduction-to-home-appliances\\\/#breadcrumb\"},\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\\\/\\\/ggba.swiss\\\/en\\\/sonexos-raises-chf-5-million-to-bring-plasma-based-noise-reduction-to-home-appliances\\\/\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\\\/\\\/ggba.swiss\\\/en\\\/sonexos-raises-chf-5-million-to-bring-plasma-based-noise-reduction-to-home-appliances\\\/#primaryimage\",\"url\":\"https:\\\/\\\/ggba.swiss\\\/app\\\/uploads\\\/2026\\\/10\\\/Sonexos-Plasma-Panel-1180x811-1.png\",\"contentUrl\":\"https:\\\/\\\/ggba.swiss\\\/app\\\/uploads\\\/2026\\\/10\\\/Sonexos-Plasma-Panel-1180x811-1.png\",\"width\":1180,\"height\":811,\"caption\":\"Sonexos' Plasmacoustic Metalayer uses a software-controlled plasma layer to absorb low-frequency noise. | \u00a9 Sonexos\"},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\\\/\\\/ggba.swiss\\\/en\\\/sonexos-raises-chf-5-million-to-bring-plasma-based-noise-reduction-to-home-appliances\\\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\\\/\\\/ggba.swiss\\\/en\\\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Sonexos raises CHF 5 million to bring plasma-based noise reduction to home appliances\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\\\/\\\/staging.ggba.swiss\\\/en\\\/#website\",\"url\":\"https:\\\/\\\/staging.ggba.swiss\\\/en\\\/\",\"name\":\"Greater Geneva Bern area\",\"description\":\"\",\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\\\/\\\/staging.ggba.swiss\\\/en\\\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"en-US\"},{\"@type\":\"Person\",\"@id\":\"https:\\\/\\\/staging.ggba.swiss\\\/en\\\/#\\\/schema\\\/person\\\/0b2e6d04131e3d01237dcb741fa33d41\",\"name\":\"Pierre-Yves Oehrli\",\"url\":\"https:\\\/\\\/ggba.swiss\\\/en\\\/author\\\/pierre-yves-oehrli\\\/\"}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"Sonexos raises CHF 5 million to cut noise with plasma | GGBa","description":"Sonexos has raised CHF 5 million in a round led by Valquest Partners, with Bosch Ventures, to industrialize its plasma-based noise reduction.","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/ggba.swiss\/en\/sonexos-raises-chf-5-million-to-bring-plasma-based-noise-reduction-to-home-appliances\/","og_locale":"en_US","og_type":"article","og_title":"Sonexos raises CHF 5 million to cut noise with plasma | GGBa","og_description":"Sonexos has raised CHF 5 million in a round led by Valquest Partners, with Bosch Ventures, to industrialize its plasma-based noise reduction.","og_url":"https:\/\/ggba.swiss\/en\/sonexos-raises-chf-5-million-to-bring-plasma-based-noise-reduction-to-home-appliances\/","og_site_name":"Greater Geneva Bern area","article_published_time":"2026-10-26T12:43:04+00:00","article_modified_time":"2026-10-26T12:43:05+00:00","og_image":[{"width":1180,"height":811,"url":"https:\/\/ggba.swiss\/app\/uploads\/2026\/10\/Sonexos-Plasma-Panel-1180x811-1.png","type":"image\/png"}],"author":"Pierre-Yves Oehrli","twitter_card":"summary_large_image","twitter_misc":{"Written by":"Pierre-Yves Oehrli","Est. reading time":"2 minutes"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"Article","@id":"https:\/\/ggba.swiss\/en\/sonexos-raises-chf-5-million-to-bring-plasma-based-noise-reduction-to-home-appliances\/#article","isPartOf":{"@id":"https:\/\/ggba.swiss\/en\/sonexos-raises-chf-5-million-to-bring-plasma-based-noise-reduction-to-home-appliances\/"},"author":{"name":"Pierre-Yves Oehrli","@id":"https:\/\/staging.ggba.swiss\/en\/#\/schema\/person\/0b2e6d04131e3d01237dcb741fa33d41"},"headline":"Sonexos raises CHF 5 million to bring plasma-based noise reduction to home appliances","datePublished":"2026-10-26T12:43:04+00:00","dateModified":"2026-10-26T12:43:05+00:00","mainEntityOfPage":{"@id":"https:\/\/ggba.swiss\/en\/sonexos-raises-chf-5-million-to-bring-plasma-based-noise-reduction-to-home-appliances\/"},"wordCount":250,"image":{"@id":"https:\/\/ggba.swiss\/en\/sonexos-raises-chf-5-million-to-bring-plasma-based-noise-reduction-to-home-appliances\/#primaryimage"},"thumbnailUrl":"https:\/\/ggba.swiss\/app\/uploads\/2026\/10\/Sonexos-Plasma-Panel-1180x811-1.png","keywords":["Advanced Manufacturing","Engineering","Financing","R&amp;D"],"articleSection":["Tech"],"inLanguage":"en-US"},{"@type":"WebPage","@id":"https:\/\/ggba.swiss\/en\/sonexos-raises-chf-5-million-to-bring-plasma-based-noise-reduction-to-home-appliances\/","url":"https:\/\/ggba.swiss\/en\/sonexos-raises-chf-5-million-to-bring-plasma-based-noise-reduction-to-home-appliances\/","name":"Sonexos raises CHF 5 million to cut noise with plasma | GGBa","isPartOf":{"@id":"https:\/\/staging.ggba.swiss\/en\/#website"},"primaryImageOfPage":{"@id":"https:\/\/ggba.swiss\/en\/sonexos-raises-chf-5-million-to-bring-plasma-based-noise-reduction-to-home-appliances\/#primaryimage"},"image":{"@id":"https:\/\/ggba.swiss\/en\/sonexos-raises-chf-5-million-to-bring-plasma-based-noise-reduction-to-home-appliances\/#primaryimage"},"thumbnailUrl":"https:\/\/ggba.swiss\/app\/uploads\/2026\/10\/Sonexos-Plasma-Panel-1180x811-1.png","datePublished":"2026-10-26T12:43:04+00:00","dateModified":"2026-10-26T12:43:05+00:00","author":{"@id":"https:\/\/staging.ggba.swiss\/en\/#\/schema\/person\/0b2e6d04131e3d01237dcb741fa33d41"},"description":"Sonexos has raised CHF 5 million in a round led by Valquest Partners, with Bosch Ventures, to industrialize its plasma-based noise reduction.","breadcrumb":{"@id":"https:\/\/ggba.swiss\/en\/sonexos-raises-chf-5-million-to-bring-plasma-based-noise-reduction-to-home-appliances\/#breadcrumb"},"inLanguage":"en-US","potentialAction":[{"@type":"ReadAction","target":["https:\/\/ggba.swiss\/en\/sonexos-raises-chf-5-million-to-bring-plasma-based-noise-reduction-to-home-appliances\/"]}]},{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/ggba.swiss\/en\/sonexos-raises-chf-5-million-to-bring-plasma-based-noise-reduction-to-home-appliances\/#primaryimage","url":"https:\/\/ggba.swiss\/app\/uploads\/2026\/10\/Sonexos-Plasma-Panel-1180x811-1.png","contentUrl":"https:\/\/ggba.swiss\/app\/uploads\/2026\/10\/Sonexos-Plasma-Panel-1180x811-1.png","width":1180,"height":811,"caption":"Sonexos' Plasmacoustic Metalayer uses a software-controlled plasma layer to absorb low-frequency noise. | \u00a9 Sonexos"},{"@type":"BreadcrumbList","@id":"https:\/\/ggba.swiss\/en\/sonexos-raises-chf-5-million-to-bring-plasma-based-noise-reduction-to-home-appliances\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/ggba.swiss\/en\/"},{"@type":"ListItem","position":2,"name":"Sonexos raises CHF 5 million to bring plasma-based noise reduction to home appliances"}]},{"@type":"WebSite","@id":"https:\/\/staging.ggba.swiss\/en\/#website","url":"https:\/\/staging.ggba.swiss\/en\/","name":"Greater Geneva Bern area","description":"","potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/staging.ggba.swiss\/en\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"en-US"},{"@type":"Person","@id":"https:\/\/staging.ggba.swiss\/en\/#\/schema\/person\/0b2e6d04131e3d01237dcb741fa33d41","name":"Pierre-Yves Oehrli","url":"https:\/\/ggba.swiss\/en\/author\/pierre-yves-oehrli\/"}]}},"_links":{"self":[{"href":"https:\/\/ggba.swiss\/en\/wp-json\/wp\/v2\/posts\/40143","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/ggba.swiss\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/ggba.swiss\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/ggba.swiss\/en\/wp-json\/wp\/v2\/users\/6"}],"replies":[{"embeddable":true,"href":"https:\/\/ggba.swiss\/en\/wp-json\/wp\/v2\/comments?post=40143"}],"version-history":[{"count":1,"href":"https:\/\/ggba.swiss\/en\/wp-json\/wp\/v2\/posts\/40143\/revisions"}],"predecessor-version":[{"id":40147,"href":"https:\/\/ggba.swiss\/en\/wp-json\/wp\/v2\/posts\/40143\/revisions\/40147"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/ggba.swiss\/en\/wp-json\/wp\/v2\/media\/40144"}],"wp:attachment":[{"href":"https:\/\/ggba.swiss\/en\/wp-json\/wp\/v2\/media?parent=40143"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/ggba.swiss\/en\/wp-json\/wp\/v2\/categories?post=40143"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/ggba.swiss\/en\/wp-json\/wp\/v2\/tags?post=40143"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}