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Quantum Random Number Generator (QRNG) Providers

A directory of companies and services providing quantum random number generation — hardware and chip vendors, cloud and API platforms, adjacent quantum-safe vendors, and public services and standards. Links go to each company's home or product page.

19 topics•4 categories•Updated October 2026

QRNG Hardware & Chip Vendors

6 entries

Companies selling quantum random number generator modules, cards, chips and appliances.

01ID Quantique (IDQ)Swiss pioneer of commercial QRNGs; Quantis chips, PCIe cards and appliances. Also see its banking use cases. 02QNu LabsIndian vendor of the Tropos QRNG for OTP and key generation in payments and banking. 03Crypta LabsUK maker of QRNG hardware from USB devices to OEM modules. 04QusideSpin-off from ICFO in Barcelona building QRNG chips and entropy sources. 05Quantum DiceOxford University spin-out building QRNGs with continuous entropy verification. 06QuintessenceLabsAustralian quantum cybersecurity vendor with QRNG, entropy-as-a-service and key management.

QRNG Platforms, Cloud & APIs

5 entries

Entropy delivered as a service or built into quantum-secure platforms.

07QryptQuantum-secure encryption platform delivering quantum entropy through APIs and SDKs. 08QuantropiCanadian quantum-secure data protection and key generation platform. 09QuantinuumQuantum computing company that offers certified randomness from its quantum computers. 10Terra QuantumQuantum technology company with quantum-safe cryptography and random number generation. 11Quantum XchangeKey management platform delivering keys for post-quantum and QKD environments.

Adjacent Quantum-Safe Vendors

4 entries

Mainly QKD or secure communications vendors that also touch quantum randomness.

12QuantumCTekChinese quantum communications company with QKD and QRNG-based products. 13Toshiba QuantumPrimarily a QKD vendor, with quantum security solutions for financial key exchange. 14Crypto4ACanadian maker of quantum-safe hardware security modules. 15QuSecureOrchestration platform for quantum-safe cryptography.

Public Services, Research & Standards

4 entries

Public quantum randomness services and standards guidance.

16ANU Quantum Random NumbersFree public service from the Australian National University producing quantum random numbers. 17NIST Random Bit GenerationNIST standards and guidance for random bit generators and entropy sources. 18NIST Interoperable Randomness BeaconsNIST work on publicly verifiable randomness beacons. 19RANDOM.ORGTrue random numbers from atmospheric noise (not quantum), useful for comparison.

Frequently Asked Questions

What is a QRNG?

A quantum random number generator measures a quantum process, such as photon arrival times or vacuum fluctuations, to produce randomness that is physically unpredictable rather than computed from a seed.

Why do banks care about QRNGs?

One-time passwords, session keys and signatures depend on unpredictable randomness. A weak or predictable source can undermine otherwise strong cryptography, so some banks add certified entropy sources.

Is a QRNG the same as QKD?

No. A QRNG generates random numbers, while QKD distributes encryption keys using quantum states. Many vendors sell both, and QRNGs are often used inside QKD systems.

How is QRNG output tested?

Output is checked with statistical test suites and standards such as NIST SP 800-90B, and good designs continuously monitor the entropy source.

Are there Indian QRNG vendors?

QNu Labs in Bengaluru offers the Tropos QRNG, and India's National Quantum Mission supports quantum communication and security work.