Seamless indoor connectivity.
nu glass transforms coated windows into RF-friendly glass, unlocking seamless mobile signals inside trains and buildings.
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Boost indoor signals by up to +30 dB
That’s up to 1000 times stronger than before, turning dead zones into fully connected spaces.
Compatible with every standard
From 3G and 4G to 5G, Wi-Fi, IoT and MIMO, ensuring future-proof connectivity.
No maintenance, no upgrades
Once treated, the window remains RF-friendly for its entire lifetime without any maintenance.
Cost-effective
2 to 5 times more cost-effective than repeaters, delivering better performance without extra infrastructure.
The invisible innovation
An invisible laser treatment, delivered onsite by our trained team and our in-house robotic system, makes coated glass permeable to radio frequencies. Each window is processed onsite in just 20–25 minutes, without unmounting, drilling or wiring. The glass keeps all its insulation, strength and aesthetics, only now it lets signals flow freely. A passive solution, with no upgrades needed, that lasts for the lifetime of the window.
20-25 minutes per glass
Glass keeps its qualities
No maintenance
Lasts forever
Our story
nu glass is a Swiss EPFL spin-off reinventing indoor connectivity with its patented laser treatment that makes coated glass permeable to mobile signals.
Since 2022, we have achieved CE and ISO certifications, secured contracts with leading operators such as SBB, train manufacturers and expanded internationally with large-scale deployments, including SNCF in France.
Our in-house robotic system delivers the service onsite with unmatched precision, guided by our core values of Quality, Safety, and Environment.
Today, nu glass is trusted to transform connectivity in trains, buildings, and public infrastructure.
Join us, we are recruiting
Our lasts news
100 Top Swiss start up award !
This year we try to do better than last year from 66 to ?
EY Entrepreneur of the Year
We are finalist !
Next step the final on the 17th of October ! Thank to this amazing program !
Meet us at Digital X the 10/09/2025 Köln
We’ll be showcasing our solution at Digital X 2025 with Telekom TechBoost🚀
Come find us at the Startup Booth D0022429 / 512275 and let’s talk about the future of connected spaces!
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We’ll do our best to get back to you as soon as possible.