quantum Security, Now and Forever.

zerothird secures the world’s most critical infrastructure with entanglement-based cryptography, designed to resist both classical and quantum attacks.

get in contact

zerothird is a brand of Quantum Industries GmbH

What We Offer

Industrialized Quantum-Grade Protection for Critical Infrastructure.
Our product suite delivers quantum-grade protection through high-efficiency entangled photon sources and detector systems engineered for seamless deployment across enterprise and infrastructure networks.
Product photo of a zerothird S10 photon source
Key-as-a-Service (KaaS)
Enterprise-grade quantum keys, delivered as a managed service with minimal operational overhead.
Read more
Product photo of a zerothird D11 photon receiver
Entanglement-Based QKD System
High-speed, long-distance quantum encryption designed for enterprise and critical infrastructure.
Read more
Product photo of zerothird lab equipment
Quantum Lab Equipment
Precision photon sources and additional lab equipment engineered for advanced quantum research and testing.
Read more

Born from Nobel-Prize-winning research in entanglement and detection, keys are generated locally from entangled states—no key transmission, no exposure. Our systems don’t rely on algorithms or trust assumptions. With flexible delivery models and future-proof hardware, we enable critical infrastructure, enterprises, and governments to secure what’s irreplaceable—now and for decades to come.

OPTIMIZED FOR LONG DISTANCES
~350 km
Built on prototcol
BBM92
Instant Deployment
0 CAPEX
Upcoming Events
Event
QUANTUM-SECURE NOW: Preparing Your Business for the Quantum Era!
Contact zerothird:
Lukas Helm
Location
Linz
Date
05.11.2025
More details
Event
it-sa365
Home of IT security conference
Contact zerothird:
Lukas Helm
Location
Nuremberg
Date
07. - 09.10.2025
more Details

Get Started

Security That Can’t Be Broken.
Even by Quantum Computers.

Algorithmic approaches to quantum security only delay decryption risks. zerothird’s entangled QKD solution derives identical keys by distributing entangled photons to all endpoints, where correlated measurements instantly reveal any eavesdropping attempt. That’s not theory, that’s pure physics—and it’s available today.

Elevate Your Security Posture Beyond the Quantum Threshold.
Whether you’re planning a secure network or exploring integration—our team is ready to protect your most valuable assets.
Get in contact with our Tech team to receive more details
Thank you! Your submission has been received!
Oops! Something went wrong while submitting the form.
supported by “Seedfinancing – Deep Tech” of BMAW and BMK, respectively, managed by aws