Post-Quantum

What Post-Quantum does

Post-Quantum (legal entity PQ Solutions Limited) is a London-headquartered private cybersecurity firm founded in 2009 as the first company globally with sole focus on post-quantum cryptography. It develops and commercializes the Quantum Safe Platform, a modular suite spanning Identity Protection (Nomidio multi-factor biometric authentication and Quorum approval-as-a-service), Hybrid PQ VPN (implementing the IETF RFC9370 standard authored by the company), Quantum-Safe Messaging, and the Classic McEliece algorithm — the sole remaining code-based NIST Round 4 finalist with a 47-year security track record. Its crypto-agile architecture combines code-based post-quantum cryptography with hybrid classical-quantum designs to defend against 'Harvest Now, Decrypt Later' attacks across data-in-transit, identity, and messaging surfaces.

The company sells to defense, government, and financial services organizations via enterprise field sales and a flagship co-development partnership with Czech defense integrator STV Group, with deployments protecting NATO Cyber Security Centre communications and a March 2026 world's first quantum-safe drone trial at STV's Czech testing facility. Revenue mechanics are subscription-based multi-year contracts delivered as direct enterprise deployments and integrator-licensed defense solutions; pricing is quote-based and not publicly disclosed. The firm holds ISO 27001 and ISO 9001 certifications, has raised approximately $11.2M in disclosed equity across 2013-2022 (including a $10.3M Series 2 in 2016 from AM Partners and VMS Asset Management), and operates with 11-50 employees serving Europe and NATO-allied geographies.

Its go-to-market combines thought-leadership-driven demand generation (the company coined the now-influential 'Harvest Now, Decrypt Later' terminology that shaped the 2022 US Quantum Computing Cybersecurity Preparedness Act) with bespoke technical consultation and standards-body engagement. Customers are concentrated in verticals with long data-confidentiality requirements — defense, government, financial services, and emerging critical infrastructure use cases (SCADA, smart grid) — where intercepted data could be decrypted decades in the future. The company has no public listing, no disclosed institutional investors beyond the 2016 Series 2 and 2022 Outlier/Outrun participation, and operates under founder/management ownership.

Name

Post-Quantum

Legal name

PQ Solutions Limited

Website

https://post-quantum.com

Company type

Private

Founded year

2009

Operating status

Operating

Headcount range

11–50 employees

Short description

Post-Quantum (PQ Solutions Limited) is a London-based private cryptography firm founded in 2009 that builds post-quantum cybersecurity solutions — Hybrid PQ VPN, Identity Protection, and Quantum-Safe Messaging — based on the Classic McEliece NIST Round 4 finalist algorithm, sold to defense, government, and financial services organizations.

Ownership category

akta.pro rank

Product category

Cybersecurity / Post-Quantum Cryptography Software

NAICS

Computer Systems Design and Related Services (54151), Computer Systems Design and Related Services (5415)

akta.pro primary industry

Quantum-Safe Cryptographic Algorithms & Protocols (PQC) (HDAGAGAC)

akta.pro secondary industries

Quantum-Safe Secure Messaging & Data-in-Transit Protection (HDAGAGAH), Quantum-Safe Data-at-Rest Protection (Storage/Database/File Encryption) (HDAGAGAI), Quantum-Safe Identity, Authentication & Digital Signatures (HDAGAGAG), Quantum Security (PQC/QKD) Training & Readiness Services (HDAGALAG)

Keywords

• Post-quantum cryptography
• Quantum-safe encryption
• Hybrid PQ VPN
• Quantum-safe identity
• Crypto-agile security

Headquarters

HQ city

London

HQ country

United Kingdom

HQ region

Europe

Offices1 record

Markets served

GTM type

B2B

Offering type

Software

Cost components

Personnel, Technology or R&D, Marketing or Sales, Operations, Infrastructure

Revenue model

1. Quantum-Safe Platform Subscriptions: Subscription-based access to quantum-safe cryptographic solutions including identity protection, hybrid PQ VPN, and quantum-safe messaging. Platform components can be implemented individually or in combination, with enterprise deployment and management capabilities.

Pricing tiers

Go-to-market motion1 record

Distribution channels2 records

Marketing channels4 records

Core offering

Post-Quantum develops and sells a unified Quantum-Safe Platform combining identity protection (biometric authentication and approval workflows), Hybrid PQ VPN (RFC9370-compliant network connectivity), and Quantum-Safe Messaging (end-to-end encrypted communications), all built on the Classic McEliece post-quantum cryptographic algorithm. The platform is targeted at defense, government, financial services, and critical infrastructure organizations that require long-term data confidentiality against current and future quantum computing threats.

Product overview

Post-Quantum offers a unified Quantum Safe Platform with three integrated modules: Identity Protection (featuring Nomidio biometric authentication and Quorum approval-as-a-service), Hybrid PQ VPN (implementing RFC9370 for quantum-safe network connectivity), and Quantum-Safe Messaging (end-to-end encrypted communications). The platform is built on the Classic McEliece cryptographic algorithm, a NIST Round 4 finalist with a 47-year security track record. All solutions are production-ready, deployed in NATO environments and active conflict zones, with crypto-agile architecture enabling rapid updates as standards evolve.

Differentiator

Problem solved

Functional benefit

Brands

• Nomidio: Multi-factor biometric authentication platform for quantum-safe identity protection.
• Quorum
• Classic McEliece

Products and services

• Quantum Safe Platform Comprehensive quantum-safe cybersecurity platform providing end-to-end protection through modular software solutions for defense, government, and financial services organizations requiring protection against current threats and future quantum attacks. Deployed in NATO environments and active conflict zones.
• Identity Protection Quantum-safe authentication and access management combining multi-factor biometric authentication (Nomidio) with post-quantum cryptographic protocols and approval-as-a-service workflow technology (Quorum) to ensure only authorized users access sensitive systems.
• Hybrid PQ VPN Quantum-safe virtual private network securing data-in-transit from both traditional and quantum attacks via RFC9370 implementation. Interoperable with any partner encryption solution and deployed in NATO production networks.
• Quantum-Safe Messaging End-to-end encrypted messaging application providing quantum-safe protection for conversations and stored message archives, including enterprise deployment and management capabilities.
• Classic McEliece NIST Round 4 finalist cryptographic algorithm in the code-based category with a 47-year security track record. Code-based approach deliberately introduces errors into encryption, producing outputs that are never the same, preventing quantum computers from exploiting patterns during brute-force attacks.

Quantifiable outcome

• Multi-year partnership deployed protecting NATO communications
• +2 more outcomes

Named customers4 records

Segments3 records

Ideal customer profiles3 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature7 records

Partnerships

Three partnerships are on record, tiered flagship, core and minor.

• STV GroupflagshipStrategic or Co-development Partner · 4 November 2025Strategic licensing and co-development partnership with STV Group, a Czech-based European defence technology integrator. The partnership incorporates quantum-resistant encryption into STV's defence products, securing communications against future quantum computing threats. The partnership achieved world's first quantum-safe drone trial in March 2026 at STV's weapons testing facility in Czech Republic, with phased deployment planned across European and allied defence programs.
• NATO Cyber Security CentrecoreStrategic or Co-development PartnerMulti-year partnership protecting NATO alliance communications against quantum threats. Trusted by NATO Cyber Security Centre for operational security with deployments protecting alliance communications.
• Post-Quantum TekminorOthersPost-Quantum Tek (separate company) developed High-Speed Optical Switch technology through University of Arizona Research. Not related to the Post-Quantum company covered in this analysis.

Scale indicators7 records

Recent moves6 records

Expansion highlights5 records

Direct peers

• Crypto4A Technologies: Canada-based PQC company offering quantum-safe hardware security modules and cryptographic infrastructure. Comparable in providing quantum-safe identity, authentication, and encryption solutions to enterprise and government customers.
• QuSecure: US-based post-quantum cybersecurity company offering quantum-resistant encryption, secure communications, and crypto-agile solutions. Comparable in offering enterprise quantum-safe communications and migration services to defense and government customers.
• ISARA Corporation: Canada-based PQC company providing quantum-safe cryptographic solutions and migration tools for enterprise and government. Comparable in providing crypto-agile solutions with focus on standards-based algorithms and enterprise transition support.
• PQShield: UK-based post-quantum cryptography company providing hardware and software PQC solutions for connected devices and enterprise systems. Directly comparable as a PQC-focused competitor with similar product breadth across algorithms, identity, and network security.

Broad incumbents

• Cloudflare: Major internet infrastructure provider that has deployed post-quantum encryption across its network. Comparable as a PQC deployment but offers it as part of a much broader CDN and security platform rather than as a standalone enterprise product.
• AWS Cryptography: Amazon Web Services' cryptography services including post-quantum support in its cloud security portfolio. Comparable in offering PQC capabilities but bundled into a much larger cloud and security ecosystem with massive scale.
• IBM Quantum Safe: IBM's post-quantum cryptography initiative providing quantum-safe services, tools, and consulting as part of its broader enterprise security portfolio. Comparable as a PQC provider but competes from a much larger platform with extensive R&D resources.
• Atos Quantum: European IT services company with quantum-safe cybersecurity offerings including quantum-resistant cryptography and consulting. Comparable in serving European defense and enterprise customers with PQC transition services, though from a much larger IT services base.

Emerging players

• ID Quantique: Swiss-based quantum cryptography company specializing in quantum key distribution (QKD) and quantum-safe network solutions. Comparable in the quantum-safe security space but differentiated by QKD focus rather than pure PQC software.
• SandboxAQ: US-based enterprise quantum and AI company offering post-quantum cryptography solutions alongside other quantum sensing and AI security products. Comparable in PQC enterprise offerings but with broader scope and significantly more funding.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

• Xx.com/post_quantum

Compliance2 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles4 records

Funding overview

Funding rounds4 records

Investors5 records

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Post-Quantum