QFM ecosystem map

Quantum networking and security companies

Quantum communications, QKD, post-quantum cryptography and quantum-safe infrastructure. This curated layer currently contains 21 organisations and is reviewed as the market changes.

All ecosystem layers Professional guides

Market structure

Security and networking are distinct but converging markets

Post-quantum cryptography is an immediate systems-management challenge, not a product that begins only when a large quantum computer exists. NIST approved FIPS 203, 204 and 205 in 2024, establishing standards for key encapsulation and digital signatures designed to resist future quantum attacks. Organisations still have to discover where vulnerable algorithms are used, select replacement profiles, test interoperability and manage migration across software, hardware, certificates, protocols and long-lived data.

PQC should not be confused with quantum key distribution. PQC runs on conventional infrastructure and addresses broad migration needs through new mathematical schemes. QKD uses quantum states to establish or distribute keys and can be relevant to selected high-security links, but it requires specialised physical infrastructure and has a different threat model. Companies may participate in one or both markets; their products and deployment economics should be evaluated separately.

Quantum networking adds another layer: interconnects, memories, transducers, repeaters and control protocols intended to distribute quantum states or connect processors. NSF describes quantum networks as infrastructure for moving quantum information rather than ordinary bits. The market therefore ranges from deployable security products to research-stage components for distributed computing, and maturity must be assessed product by product rather than through the general label 'quantum communications'.

RegionCategoryOwnershipValue-chain stage

United KingdomPublic pure play

Arqit Quantum

Quantum-safe encryption

What it does: Symmetric-key agreement and quantum-safe communications software.
Value-chain position: Networks, cryptography and security
Why it matters: It addresses the security and connectivity layer required for quantum-safe infrastructure and distributed quantum systems.

Networking & securityNASDAQ: ARQQOpen company profile →

ChinaPublic pure play

QuantumCTek

Quantum communications

What it does: Quantum key distribution, secure networking and related equipment.
Value-chain position: Networks, cryptography and security
Why it matters: One of the few listed companies focused on commercial quantum communications infrastructure.

Networking & securitySSE: 688027Open company profile →

JapanPublic diversified

NTT

Photonic and quantum networks

What it does: Quantum communications, photonics and computing research.
Value-chain position: Networks, cryptography and security
Why it matters: It addresses the security and connectivity layer required for quantum-safe infrastructure and distributed quantum systems.

Networking & securityTSE: 9432Open company profile →

FrancePublic diversified

Thales

Quantum-safe security and sensing

What it does: Quantum security, sensors and defence-oriented research programmes.
Value-chain position: Networks, cryptography and security
Why it matters: It addresses the security and connectivity layer required for quantum-safe infrastructure and distributed quantum systems.

Networking & securityEPA: HOOpen company profile →

Finland / United StatesPublic diversified

Nokia Bell Labs

Quantum networking

What it does: Telecommunications research in quantum communications and networks.
Value-chain position: Networks, cryptography and security
Why it matters: It addresses the security and connectivity layer required for quantum-safe infrastructure and distributed quantum systems.

Networking & securityNYSE: NOKOpen company profile →

JapanBusiness unit

Toshiba Digital Solutions

Quantum key distribution

What it does: Commercial quantum-secure networking and QKD systems.
Value-chain position: Networks, cryptography and security
Why it matters: It addresses the security and connectivity layer required for quantum-safe infrastructure and distributed quantum systems.

Networking & securityOpen company profile →

United StatesPrivate

Aliro Quantum

Quantum networking and security

What it does: Quantum-secure communications and network orchestration software.
Value-chain position: Networks, cryptography and security
Why it matters: It addresses the security and connectivity layer required for quantum-safe infrastructure and distributed quantum systems.

Networking & securityOpen company profile →

United StatesPrivate

Qunnect

Quantum networking

What it does: Room-temperature networking hardware for entanglement distribution.
Value-chain position: Networks, cryptography and security
Why it matters: It addresses the security and connectivity layer required for quantum-safe infrastructure and distributed quantum systems.

Networking & securityOpen company profile →

United StatesPrivate

Qrypt

Quantum-secure encryption

What it does: Distributed encryption and post-quantum data protection software.
Value-chain position: Networks, cryptography and security
Why it matters: It addresses the security and connectivity layer required for quantum-safe infrastructure and distributed quantum systems.

Networking & securityOpen company profile →

CanadaPrivate

evolutionQ

Quantum risk and cryptography

What it does: Quantum-safe cybersecurity products and advisory services.
Value-chain position: Networks, cryptography and security
Why it matters: It addresses the security and connectivity layer required for quantum-safe infrastructure and distributed quantum systems.

Networking & securityOpen company profile →

SpainPrivate

LuxQuanta

Quantum key distribution

What it does: Continuous-variable QKD systems for telecommunications networks.
Value-chain position: Networks, cryptography and security
Why it matters: It addresses the security and connectivity layer required for quantum-safe infrastructure and distributed quantum systems.

Networking & securityOpen company profile →

SwitzerlandBusiness unit

ID Quantique

QKD and quantum random numbers

What it does: Commercial quantum-safe network security and random-number systems.
Value-chain position: Networks, cryptography and security
Why it matters: It addresses the security and connectivity layer required for quantum-safe infrastructure and distributed quantum systems.

Networking & securityOpen company profile →

NetherlandsPrivate

QphoX

Quantum transduction

What it does: Interfaces linking microwave quantum processors to optical networks.
Value-chain position: Networks, cryptography and security
Why it matters: It addresses the security and connectivity layer required for quantum-safe infrastructure and distributed quantum systems.

Networking & securityOpen company profile →

United KingdomPrivate

Nu Quantum

Quantum networking

What it does: Photonic interconnects for distributed quantum computing.
Value-chain position: Networks, cryptography and security
Why it matters: It addresses the security and connectivity layer required for quantum-safe infrastructure and distributed quantum systems.

Networking & securityOpen company profile →

United KingdomPrivate

Aegiq

Quantum photonics

What it does: Single-photon technologies for networking, computing and sensing.
Value-chain position: Networks, cryptography and security
Why it matters: It addresses the security and connectivity layer required for quantum-safe infrastructure and distributed quantum systems.

Networking & securityOpen company profile →

IndiaPrivate

QNu Labs

Quantum-safe security

What it does: QKD, quantum random numbers and post-quantum security products.
Value-chain position: Networks, cryptography and security
Why it matters: It addresses the security and connectivity layer required for quantum-safe infrastructure and distributed quantum systems.

Networking & securityOpen company profile →

United StatesPrivate

SandboxAQ

Post-quantum security and quantum sensing

What it does: Enterprise software for cryptographic migration, AI-enabled sensing and quantum-derived simulation.
Value-chain position: Networks, cryptography and security
Why it matters: It addresses the security and connectivity layer required for quantum-safe infrastructure and distributed quantum systems.

Networking & securityOpen company profile →

United KingdomPrivate

PQShield

Post-quantum cryptography

What it does: PQC software and hardware intellectual property for chips, devices and enterprise systems.
Value-chain position: Networks, cryptography and security
Why it matters: It addresses the security and connectivity layer required for quantum-safe infrastructure and distributed quantum systems.

Networking & securityOpen company profile →

FrancePrivate

CryptoNext Security

Post-quantum cryptography

What it does: Crypto-agility and post-quantum migration software for enterprises and critical infrastructure.
Value-chain position: Networks, cryptography and security
Why it matters: It addresses the security and connectivity layer required for quantum-safe infrastructure and distributed quantum systems.

Networking & securityOpen company profile →

FrancePrivate

Welinq

Quantum interconnects

What it does: Quantum memory and networking technology intended to connect processors into larger systems.
Value-chain position: Networks, cryptography and security
Why it matters: It addresses the security and connectivity layer required for quantum-safe infrastructure and distributed quantum systems.

Networking & securityOpen company profile →

SingaporePrivate

SpeQtral

Satellite quantum communications

What it does: Space-based and terrestrial quantum key-distribution systems for secure global networks.
Value-chain position: Networks, cryptography and security
Why it matters: It addresses the security and connectivity layer required for quantum-safe infrastructure and distributed quantum systems.

Networking & securityOpen company profile →

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