PQShield

What the company sells

PQShield is a cybersecurity company specialising in post-quantum cryptography. PQShield develops and commercially deploys quantum-ready cryptographic solutions for hardware, software and communications. PQShield is headquartered in Oxford, with additional teams in the Netherlands and France.

PQShield states that quantum computers will soon be able to break current cryptography methods. PQShield aims its quantum-resistant hardware and software solutions at organizations, industries and nations. PQShield says the cryptography that keeps data, devices, connections and components secure must be modernized to align with the new NIST global standards. Public key cryptography, including RSA and elliptic curve cryptography (ECC), faces the greatest quantum risk. Post-quantum cryptography can be deployed on existing classical hardware today. Adversaries can harvest encrypted information now and decrypt it later when quantum capabilities mature.

The PQShield team comprises post-quantum cryptographers, researchers and engineers. PQShield says its team has been actively involved in the international standardization of post-quantum algorithms. Customers are helped to evaluate existing infrastructure, determining the risk and agility of the underlying architecture. The PQShield team works alongside, or as part of, a customer's wider team to deploy end-to-end solutions. PQShield products are aimed at vendors building PQC into greenfield and brownfield products. Device manufacturers have chosen PQShield’s PQC IP for integration into hardware security solutions.

PQShield has a reciprocal agreement with Kudelski Security, the cybersecurity division within the Kudelski Group. Under that agreement, PQShield will offer expert training and advisory services to clients of Kudelski, alongside post-quantum cryptography solutions for both software and hardware. The agreement includes a collaborative referral and co-marketing relationship to support Kudelski Security’s go-to-market strategy. PQShield has signed a Memorandum of Understanding with systems integrator Tata Consultancy Services to help its clients transition to post-quantum cryptography (PQC) solutions. PQShield has partnered with eShard, a provider of side-channel analysis and testing tools.

PQShield offers post-quantum cryptography for embedded devices in as little as 5KB RAM. PQMicroLib-Core is a library designed with flexibility and configurability in mind. A CAVP-Ready version of PQCryptoLib-Core is tailored for embedded systems, small footprint solutions and memory constrained devices. PQCryptoLib-Core is a FIPS 140-3 CMVP Certified / CAVP Compliant general-purpose cryptographic library designed for a wide variety of applications. PQCryptoLib-Core is configurable by a secure API. PQCryptoLib-SDK is a plug-and-play tool that helps to transition OpenSSL-based applications to quantum resilience. Software implementations of PQC algorithms are supplied via an OpenSSL provider, including ML-DSA, Falcon, ML-KEM and hybrid PQ/T schemes for TLS.

PQPlatform-CoPro is a cryptographic coprocessor designed to add post-quantum capabilities to an existing security subsystem. PQPerform-Flare is a hardware-based FIPS 140-3 CAVP-certified product designed for high throughput and low latency PQC. PQPerform-Flare supports ML-DSA (FIPS 204) and ML-KEM (FIPS 203) and is optimized for TLS. Building on the architecture of PQPerform-Flare, Inferno integrates multiple instances with load balancing, and can deliver over 1 million key encapsulations per second. PQPerform-Flex combines PQPerform-Inferno with a RISC-V processor to form a complete subsystem.

PQShield products come in 4 security levels to address all use cases. The security levels are tested continuously by both PQShield and external labs for certification.^{[1][4][5][6][7][8][10][11]}

Categories

• Post-quantum cryptography (primary category)
• Encryption, tokenization and key management
• Compare PQShield with companies in the same categoryside by side

Headquarters

United Kingdom^[2][3]

Founded

Not established from our sources

Ownership

Privately held^[9]

CISO on record

Not yet on our record. Send a verified source

Website

pqshield.com

Products and services

Product names as the company writes them; what each does, in our words, from the company's own product pages. Never how well it does it.

• PQMicroLib-Core^[1][10]

  A library designed with flexibility and configurability in mind.

  PQMicroLib-Core is a library designed with flexibility and configurability in mind. A CAVP-Ready version of PQCryptoLib-Core is tailored for embedded systems, small footprint solutions and memory constrained devices.

• PQCryptoLib-Core^[1][10]

  A general-purpose cryptographic library for a wide variety of applications.

  PQCryptoLib-Core is a FIPS 140-3 CMVP Certified / CAVP Compliant general-purpose cryptographic library designed for a wide variety of applications. PQCryptoLib-Core is configurable by a secure API.

• PQCryptoLib-SDK^[1][10]

  A plug-and-play tool for moving OpenSSL-based applications to quantum resilience.

  PQCryptoLib-SDK is a plug-and-play tool that helps to transition OpenSSL-based applications to quantum resilience. Software implementations of PQC algorithms are supplied via an OpenSSL provider, including ML-DSA, Falcon, ML-KEM and hybrid PQ/T schemes for TLS.

• PQPlatform-CoPro^[1][10]

  A cryptographic coprocessor that adds post-quantum capabilities to an existing security subsystem.

• PQPlatform-TrustSys^[1][5][10]

  A PQC-focused Root-of-Trust security solution.

• PQPerform-Flare^[10]

  A hardware-based PQC product designed for high throughput and low latency.

  PQPerform-Flare is a hardware-based FIPS 140-3 CAVP-certified product designed for high throughput and low latency PQC. PQPerform-Flare supports ML-DSA (FIPS 204) and ML-KEM (FIPS 203) and is optimized for TLS.

• PQPerform-Inferno^[1][10]

  A scalable hardware solution built on the PQPerform-Flare architecture.

  PQPerform-Inferno is a scalable hardware solution. Building on the architecture of PQPerform-Flare, Inferno integrates multiple instances with load balancing, and can deliver over 1 million key encapsulations per second.

• PQPerform-Flex^[10]

  PQPerform-Inferno combined with a RISC-V processor as a complete subsystem.

Competitors and alternatives

The other companies on our record filed under the same categories, category by category: first those that lead with that category and share more of PQShield's categories, then alphabetical. A list from the record, never a ranking.

• On post-quantum cryptography, PQShield competes with CryptoNext Security, EigenQ, IDEMIA, QuSecure, SandboxAQ, Patero, Fortanix, SSH Communications Security, Thales, CyberTrust Consulting and 3 more.

• On encryption, tokenization and key management, PQShield competes with Fortanix, Thales, Baffle, General Dynamics Mission Systems, Protegrity, Skyflow, StratoKey, Virtru, CryptoNext Security, EigenQ and 9 more.

References

Every fact above cites one of these by number. Tier A is the company itself, a regulator or a filing; tier B is trade or business press.

1. [1]pqshield.comPQShield · pqshield.com · undated page, accessed September 27, 2026 · Tier A: the company, a regulator or a filing
2. [2]Pqshield raises 37m in series b funding to deliver the widespread commercial adoption of quantum resistant cryptography 302175607PQShield via PR Newswire · prnewswire.com · published June 20, 2024 · Tier A: the company, a regulator or a filing
3. [3]PQShield and Kudelski Security Partner to Address Quantum Threat | PQShieldPQShield · published September 29, 2021 · Tier A: the company, a regulator or a filing
4. [4]Post-quantum Cryptography Experts | Quantum-safe & Quantum-resistant SolutionsPQShield · undated page, accessed October 27, 2026 · Tier A: the company, a regulator or a filing
5. [5]Post-Quantum Cryptography Solutions | PQShieldPQShield · published April 24, 2025 · Tier A: the company, a regulator or a filing
6. [6]We are attending, WEF - Annual Meetings of the Global Future Councils and Cybersecurity, 14 Oct | PQShieldPQShield · published October 14, 2025 · Tier A: the company, a regulator or a filing
7. [7]We are speaking: Security Privacy Identity & Trust (SPIT) SIG event, Cambridge, 28 January 2025 | PQShieldPQShield · published January 28, 2025 · Tier A: the company, a regulator or a filing
8. [8]We are judging at - Cyber Security Awareness Week Europe, 7-8 November 2024 | PQShieldPQShield · published November 7, 2024 · Tier A: the company, a regulator or a filing
9. [9]Quantum Security Company: What to Look For | PQShieldPQShield · undated page, accessed November 10, 2026 · Tier A: the company, a regulator or a filing
10. [10]Quantum-safe & Quantum-resistant Software, Hardware & UpgradesPQShield · undated page, accessed November 10, 2026 · Tier A: the company, a regulator or a filing
11. [11]PQShield partners with Tata Consultancy Services and eShard to meet commercial demand for protecting organisations against quantum the threat | PQShieldPQShield · undated page, accessed November 10, 2026 · Tier A: the company, a regulator or a filing

Last verified November 2, 2026. Our code found the quoted passage behind each fact on its source page when the fact was recorded, and re-checks every record against its sources each month.

Recorded September 27, 2026, expanded November 10, 2026 from the references above.

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