Phononic Vibes secures €25 million (~$27 million) to expand its metamaterial noise control tech, already used by Deutsche Bahn and Mercedes-Benz. The Milan-based startup aims to make quiet lighter.
Phononic Vibes, a Milan-based company that designs and manufactures noise and vibration products for rail, energy, industry, construction, and mobility, just closed a €25 million (~$27 million) financing round. The company also launched a new identity and website. This round was led by Jolt Capital, a Paris-based private equity firm focused on DeepTech growth companies, through its Jolt Capital V fund, which is targeting €1 billion and nearing final close. Eureka! Venture SGR, CDP Venture Capital SGR, and Simest SpA also participated. The deal includes the acquisition of 360 Capital's stake, held since the seed round. Back in 2020, the company raised €2.3 million (~$2.5 million).
Andrea Traversone, Managing Partner at Jolt Capital, said, "Noise control is reaching a turning point. Conventional products have hit their physical limit, and infrastructure needs quieter assets with less weight and space. Phononic Vibes is a company combining breakthrough science, a patented design engine, and manufacturing at scale. We are excited to back the team in building a global leader in noise and vibration control. This is Jolt Capital V's first investment in Italy, a country with an increasingly dynamic and vibrant deeptech ecosystem."
### The Technology: Breaking the Mass Law
Founded in 2018 by Luca D'Alessandro, Giovanni Capellari, and Stefano Caverni as a spin-off of Politecnico di Milano, Phononic Vibes manufactures in Italy and leads a group of established European manufacturers, including Matis, founded in 1979. The company designs and manufactures noise and vibration products that do the same job with less material. According to the company, every noise barrier, enclosure, and silencer on the market obeys the mass law: more quiet means more material. Phononic Vibes claims to break it.
It designs metamaterials, structures whose shape does the work mass used to do. Its products weigh up to 30% less while delivering the same acoustic performance, or they perform better at the same weight. At the core is a proprietary design engine, protected by 18 patent families. "It turns the physics of metamaterials into certified products, drawing on application libraries that grow with every project, so each new market starts from proven designs rather than a blank sheet," the company mentioned in the press release.
### Proven in the Real World
The company highlighted that Deutsche Bahn certified its transparent noise barrier for the German rail network, the first see-through panel it rates as highly absorbing. Mercedes-Benz uses its technology in series production, which the company says is the first metamaterial in a series-production car. Contractors such as Webuild and Eteria choose its barriers because they install faster. Revenue has doubled every year since 2018, reaching break-even in 2025.
Luca D'Alessandro, CEO and co-founder of Phononic Vibes, said, "Weight has always been the price of quiet. We have shown it is a design choice, with two of Europe's most demanding customers. With Jolt Capital by our side in this new chapter, and the continued support of our existing investors Eureka! Venture SGR, CDP Venture Capital, and Simest, we can accelerate our international growth, expand into new applications, and make lighter noise control the standard across data centers, rail, energy, and industry. I would also like to thank 360 Capital for believing in us from the early days, when we were still working at the desks of Politecnico di Milano, and for being part of the journey that brought us here."
The company plans to use this capital to scale its proprietary design engine internationally, expand its technology into new applications, and strengthen its delivery capabilities. Phononic Vibes also notes that targeted acquisitions will complement this strategy by extending the reach of its technology and bringing additional industrial capabilities to the table. With this fresh funding, Phononic Vibes is poised to make lighter noise control the standard across industries, proving that quiet doesn't have to be heavy.