Store data in glass, permanently and without energy consumption: Ewigbyte, a deeptech startup from the Munich startup scene, is now collaborating with Belgian company Capsyra. The companies presented their cooperation at CyberSec Europe 2026 in Brussels. The goal is an infrastructure for long-term data storage that should be protected against manipulation and cyberattacks.
Ewigbyte develops a storage technology in which data is permanently written into glass using ultrashort pulse lasers. According to the company, the data carriers no longer require energy after the writing process and are intended to remain physically disconnected from the network. Capsyra complements the technology with encrypted archiving and audit mechanisms.
At the trade fair, Ewigbyte showcased glass samples with stored data that can be read using a microscope and standard QR code readers, according to the company. Capsyra achieved third place in the “Best Cybersecurity Innovation Europe Award 2026” competition.
Storage for long-term archives
Belgian startup Capsyra was founded in 2025 and develops systems for long-term data archiving. The stored data should be verifiable independently of individual platforms or cloud providers.
Ewigbyte positions its technology as an alternative to classic tape storage for long-term archives. The company describes the glass data carriers as physically disconnected from the network. This means data cannot be deleted remotely or encrypted by ransomware.
Starting in early 2027, the companies plan to connect initial customers to the shared infrastructure via Capsyra’s platform. Target customers initially include organizations with long-term archiving and documentation requirements, including research institutions, cultural institutions, and critical infrastructure operators.
Focus on European infrastructure
Both companies see their technology as a European alternative to major cloud providers. This is driven in part by stricter regulatory requirements within the European Union, such as the NIS2 Directive and the Cyber Resilience Act.
Ina von Haeften, co-founder and Head of Operations at Ewigbyte, says:
“We are building the missing permanence layer for Europe’s data infrastructure.”
Ruben Tacq, CEO and CTO of Capsyra, adds:
“Data should be protected with the same seriousness as irreplaceable physical assets.”
Ewigbyte is one of several deeptech startups from the Munich area working on infrastructure technologies for data storage and cybersecurity. According to the company, it is currently building a network of technology and infrastructure partners in Europe and the USA.
