CISO Tribune

Vendor comparison · 2 companies

PQShield vs Virtru

PQShield is a cybersecurity company specialising in post-quantum cryptography. Virtru sells data security software that protects sensitive data shared through email, files, SaaS apps and mission partner environments. CISO Tribune files both under Encryption, tokenization and key management. This page sets the two records side by side: what each sells, where it is based, who owns and funds it, the customers it names and its recent news, each fact numbered to its source.

Change the companies

Up to four companies side by side.

  • PQShield
  • Virtru
PQShield vs Virtru: Products, Customers and Funding Compared
PQShieldPQShield is a cybersecurity company specialising in post-quantum cryptography.pqshield.comVirtruVirtru sells data security software that protects sensitive data shared through email, files, SaaS apps and mission partner environments.virtru.com
What it sells
  • PQMicroLib-Core[1][10]A library designed with flexibility and configurability in mind.
  • PQCryptoLib-Core[1][10]A general-purpose cryptographic library for a wide variety of applications.
  • PQCryptoLib-SDK[1][10]A plug-and-play tool for moving OpenSSL-based applications to quantum resilience.
  • 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-Inferno[1][10]A scalable hardware solution built on the PQPerform-Flare architecture.
  • PQPerform-Flex[10]PQPerform-Inferno combined with a RISC-V processor as a complete subsystem.
  • Virtru for Outlook[4][6]An add-in that encrypts Outlook messages and attachments with end-to-end encryption.
  • Virtru Secure Share[4]A cloud-based solution for sharing sensitive files with access control and data visibility.
  • Virtru Collaborate[4][12]Secure workspaces for storing and collaborating on sensitive files with external parties.
  • Virtru Data Protection GatewaySecurity rules that automatically identify and encrypt sensitive data.
Categories
Headquarters
United Kingdom[2][3]Washington, United States[2]
Founded
Not stated on its pages2012[2]
Ownership and funding
Privately held[9]Privately held[3][4][5]
Named customers
Not stated on its pagesNot stated on its pages
Recent news
Not stated on its pagesNot stated on its pages
G2 and Gartner Peer Insights
  • G2: Not stated on its pages
  • Gartner Peer Insights: Not stated on its pages
  • G2: listed, seen November 4, 2026[5]
  • Gartner Peer Insights: Not stated on its pages
Who it fits
Not written yetFrom its own pages, Virtru sells to commercial businesses from enterprise to small business, and to government agencies and mission partners. Virtru says it offers lightweight solutions for small businesses that need to meet compliance regulations. It describes enterprise data sharing via email, files and SaaS applications, and government organizations pursuing Zero Trust architectures. Virtru Collaborate is aimed at regulated industries and organizations sharing files with external partners, contractors and vendors.
Last verified
November 2, 2026September 27, 2026

Where they overlap

  • PQShield and Virtru are both filed under Encryption, tokenization and key management.
  • Both are privately held.

Where they differ, field by field

  • PQShield's primary category is Post-quantum cryptography; Virtru's is Encryption, tokenization and key management.
  • Virtru is also filed under Email security and Collaboration app security.
  • PQShield lists PQMicroLib-Core, PQCryptoLib-Core, PQCryptoLib-SDK, PQPlatform-CoPro, PQPlatform-TrustSys and 3 more. Virtru lists Virtru for Outlook, Virtru Secure Share, Virtru Collaborate and Virtru Data Protection Gateway.
  • PQShield is headquartered in United Kingdom. Virtru is headquartered in Washington, United States.
  • Virtru was founded in 2012.

What it sells: PQShield

What PQMicroLib-Core does[1][10]
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.
What PQCryptoLib-Core does[1][10]
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.
What PQCryptoLib-SDK does[1][10]
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.
What PQPerform-Flare does[10]
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.
What PQPerform-Inferno does[1][10]
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.

What it sells: Virtru

What Virtru for Outlook does[4][6]
Virtru for Outlook lets users encrypt emails shared internally and externally, all within Outlook. Protection is applied with one click. Virtru says no encryption key set up is required with third parties.
What Virtru Secure Share does[4]
Virtru Secure Share lets administrators set limits on file count, file size and file types. Administrators can disable local downloads.
What Virtru Collaborate does[4][12]
Virtru Collaborate creates governed workspaces with TDF protection applied to every file automatically. Access can be managed, modified and revoked after files are shared. External collaborators need no software or account setup.
What Virtru Data Protection Gateway does
Virtru Data Protection Gateway for Looker creates security rules that automatically identify and encrypt sensitive information flowing in and out of Looker. Virtru says it can be deployed across a domain in hours.

Questions about PQShield and Virtru

What do PQShield and Virtru sell?
PQShield sells PQMicroLib-Core, PQCryptoLib-Core, PQCryptoLib-SDK, PQPlatform-CoPro, PQPlatform-TrustSys and 3 more. Virtru sells Virtru for Outlook, Virtru Secure Share, Virtru Collaborate and Virtru Data Protection Gateway.
Are PQShield and Virtru in the same category?
They share Encryption, tokenization and key management. PQShield's primary category is Post-quantum cryptography and Virtru's is Encryption, tokenization and key management.
Where are PQShield and Virtru headquartered?
PQShield is headquartered in United Kingdom. Virtru is headquartered in Washington, United States.
When were PQShield and Virtru founded?
Virtru was founded in 2012.
Who owns PQShield and Virtru?
PQShield is privately held. Virtru is privately held.
Who are PQShield and Virtru sold to?
From its own pages, Virtru sells to commercial businesses from enterprise to small business, and to government agencies and mission partners.

About PQShield

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.[4]

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.[4][10]

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.[11]

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.[1][4][10]

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.[1][10]

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]

PQShield on the record

Sources

PQShield full record

  1. [1]pqshield.comPQShield · pqshield.com · undated page, accessed September 27, 2026 · Tier A
  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
  3. [3]PQShield and Kudelski Security Partner to Address Quantum Threat | PQShieldPQShield · published September 29, 2021 · Tier A
  4. [4]Post-quantum Cryptography Experts | Quantum-safe & Quantum-resistant SolutionsPQShield · undated page, accessed October 27, 2026 · Tier A
  5. [5]Post-Quantum Cryptography Solutions | PQShieldPQShield · published April 24, 2025 · Tier A
  6. [6]We are attending, WEF - Annual Meetings of the Global Future Councils and Cybersecurity, 14 Oct | PQShieldPQShield · published October 14, 2025 · Tier A
  7. [7]We are speaking: Security Privacy Identity & Trust (SPIT) SIG event, Cambridge, 28 January 2025 | PQShieldPQShield · published January 28, 2025 · Tier A
  8. [8]We are judging at - Cyber Security Awareness Week Europe, 7-8 November 2024 | PQShieldPQShield · published November 7, 2024 · Tier A
  9. [9]Quantum Security Company: What to Look For | PQShieldPQShield · undated page, accessed November 10, 2026 · Tier A
  10. [10]Quantum-safe & Quantum-resistant Software, Hardware & UpgradesPQShield · undated page, accessed November 10, 2026 · Tier A
  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

Virtru full record

  1. [1]virtru.comVirtru · virtru.com · undated page, accessed September 27, 2026 · Tier A
  2. [2]Virtru unveils new headquarters and technology hub in washington dcVirtru · virtru.com · undated page, accessed September 27, 2026 · Tier A
  3. [3]Virtru secures 50 million in new funding to accelerate the future of data centric security for the ai eraVirtru · virtru.com · published July 11, 2025 · Tier A
  4. [4]Data Security Platform for Email, Files and Collaboration | VirtruVirtru · undated page, accessed October 30, 2026 · Tier A
  5. [5]Virtru Email Encryption Reviews 2026: Details, Pricing, & Features | G2G2 · undated page, accessed October 30, 2026 · Tier C
  6. [6]Virtru Outlook Email Add-inVirtru · undated page, accessed November 4, 2026 · Tier A
  7. [7]Protect Your Data Against Human Errors with Email BlockingVirtru · undated page, accessed November 4, 2026 · Tier A
  8. [8]Enhanced Audit Data for Gmail Chrome Extension Trigger EventsVirtru · undated page, accessed November 4, 2026 · Tier A
  9. [9]Advanced File Upload Control for Secure SharingVirtru · undated page, accessed November 4, 2026 · Tier A
  10. [10]Save Secure Share Files Directly to Cloud StorageVirtru · undated page, accessed November 4, 2026 · Tier A
  11. [11]Securely Share Files From Your Group Email AddressesVirtru · undated page, accessed November 4, 2026 · Tier A
  12. [12]Confidently Store, Share and Collaborate on Sensitive FilesVirtru · undated page, accessed November 4, 2026 · Tier A
  13. [13]Virtru Gateway for LookerVirtru · undated page, accessed November 4, 2026 · Tier A

Spot a factual error? Request a correction.