Crypta Labs

Crypta Labs is a London-based hardware company founded in 2014 that builds Quantum Random Number Generators (QRNGs). Its Quantum Optics Model extracts entropy directly from quantum photonic phenomena using off-the-shelf optical components, producing randomness that is physically unpredictable rather than algorithmically derived — addressing a foundational weakness in classical pseudo-random number generators that underpin most encryption schemes. Devices range from USB-connected modules to gigabit-rate outputs for high-throughput applications.

The company’s most independently validated work is the SPRINT project, a UKRI and UK Space Agency-funded effort to build a space-compliant QRNG for satellite data encryption. The resulting device was tested by the University of Southampton and demonstrated generation of high-quality random numbers at roughly 40 Mbit/s, giving Crypta Labs a rare piece of academically validated performance data rather than vendor-only claims.

Crypta Labs remains a small company, with third-party databases reporting roughly $2.4-3.4 million in total disclosed funding across several seed-stage rounds, led in part by Bloc Ventures, and 11-50 employees. As organizations begin planning for post-quantum cryptography migration and defending against "harvest now, decrypt later" attacks, true hardware entropy sources like Crypta Labs’ QRNGs address a specialized but increasingly relevant piece of the cryptographic foundation, though the company’s small scale limits it to specialized deployments rather than broad commercial reach.