Post-Quantum
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.
- Company typePrivate
- Founded2009
- HeadquartersLondon, United Kingdom
- Headcount11–50
- GTM typeB2B
- OfferingSoftware
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.
Post-Quantum firmographics
Firmographics- 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
Post-Quantum industry classification
Industry- 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
Where Post-Quantum is headquartered
LocationHeadquarters
- HQ city
- London
- HQ country
- United Kingdom
- HQ region
- Europe
Offices1 record
Markets served
Post-Quantum business model
Business model- GTM type
- B2B
- Offering type
- Software
- Cost components
- Personnel, Technology or R&D, Marketing or Sales, Operations, Infrastructure
Revenue model
- 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
| Model | Billing | Price |
|---|---|---|
| Subscription | Multi-year contract | Enterprise platform with modular components for quantum-safe security |
Go-to-market motion1 record
Distribution channels2 records
Marketing channels4 records
Post-Quantum product offering
Product offeringCore 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
Companies that use Post-Quantum
Customer profileNamed customers4 records
Segments3 records
Ideal customer profiles3 records
Post-Quantum technology and API
TechnologyTechnology focussed Yes
API detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
Feature7 records
Post-Quantum partnerships and signals
Strategic signalPartnerships
Three partnerships are on record, tiered flagship, core and minor.
- STV GroupflagshipStrategic 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 CentrecoreMulti-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 TekminorPost-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
Post-Quantum competitors and assessment
Company assessmentDirect 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
Post-Quantum social profiles
Digital presencePost-Quantum compliance and trust
Trust signalCompliance2 records
Post-Quantum financial estimates
Financial estimateRevenue estimate
Valuation estimate
Post-Quantum leadership team
Management profileNumber of profiles
Profiles4 records
Post-Quantum funding detail
Funding detailFunding overview
Funding rounds4 records
Investors5 records
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
Post-Quantum M&A and investment
M&A and investmentM&A
Investments
M&A and investment is available on the Subscription and Enterprise plan.Contact sales →
Frequently asked questions about Post-Quantum
What does Post-Quantum do?
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.
Is Post-Quantum a public or private company?
Post-Quantum is a private company. It is classified as venture growth investor backed and is currently operating.
When was Post-Quantum founded?
Post-Quantum was founded in 2009. It employs 11 to 50 people.
Where is Post-Quantum based?
Post-Quantum is headquartered in London, United Kingdom, in the Europe region.
How does Post-Quantum make money?
One revenue line is on record: quantum-Safe Platform Subscriptions.
Who are Post-Quantum's main competitors?
Direct peers on record are Crypto4A Technologies, QuSecure, ISARA Corporation and PQShield. Broad incumbents are Cloudflare, AWS Cryptography, IBM Quantum Safe and Atos Quantum. Emerging players are ID Quantique and SandboxAQ.
Does Post-Quantum have an API?
No public API is recorded for Post-Quantum.
What industry is Post-Quantum in?
Post-Quantum's product category is Cybersecurity / Post-Quantum Cryptography Software. Its primary akta.pro industry code is HDAGAGAC, Quantum-Safe Cryptographic Algorithms & Protocols (PQC), with a secondary code of HDAGAGAH, Quantum-Safe Secure Messaging & Data-in-Transit Protection. Its NAICS code is 54151.