Post-Quantum Cryptography (PQC)

Senetas is a Melbourne-based cybersecurity specialist providing high-assurance network encryption solutions. The company has developed post-quantum cr...

ExeQuantum offers Post-Quantum Cryptography as a Service (PQCaaS) with flexible APIs, cloud and on-premises delivery, and TLS wrapping capabilities. T...

BTQ Technologies is a global post-quantum cryptography company active at Quantum Australia events. The company builds blockchain infrastructure harden...

Zertificon provides enterprise email encryption and PKI solutions. The company is developing PQC-ready certificate and email encryption capabilities a...

Approach Cyber is a Belgian cybersecurity consultancy providing PQC readiness assessments, cryptographic inventory services, and quantum-safe migratio...

Crypto4A Technologies builds quantum-first, crypto-agile Hardware Security Modules (HSMs) that store and manage cryptographic keys for enterprise and ...

Quantropi offers proprietary quantum-secure communications through its QiSpace platform, claimed to be the only end-to-end quantum security SaaS cover...

evolutionQ is a quantum-safe cybersecurity company founded in 2015, specialising in quantum risk assessment and post-quantum cryptography solutions. T...

ISARA Corporation (now part of InfoSec Global, which was acquired by Keyfactor in 2025) was founded in 2015 and specialised in helping organisations t...

Qubix Security is a Czech startup developing hybrid encryption solutions for cloud services, combining PQC algorithms with classical cryptography for ...

Guardtime is an Estonian-born cybersecurity pioneer founded in 2007, specialising in blockchain-based data integrity and authentication. The company's...

Xiphera designs and implements proven cryptographic security for embedded systems, protecting critical infrastructure with quantum-resistant and tradi...

SSH Communications Security is a Finnish cybersecurity company and inventor of the SSH protocol. The company provides quantum-safe privileged access m...

Thales is a global technology leader and one of the top five players in the quantum cryptography market. The company provides quantum-resistant encryp...

IDEMIA is a global identity and security technology company and one of the top five PQC market players. IDEMIA strengthens its position through identi...

CryptoNext Security was founded in 2019 following more than 20 years of academic research in quantum-resistant cryptography. The company provides end-...

Eviden (Atos digital security division) is a leading global player in quantum cryptography and post-quantum security. The company's Trustway IP Protec...

TheGreenBow is a French cybersecurity software company providing VPN and secure communications solutions since 1998. The company is a participant in t...

CryptoExperts is a French SME specialising in applied cryptography, cryptographic engineering, and post-quantum cryptography consulting. The company's...

PRIM'X Technologies is a French cybersecurity company specialising in file and disk encryption solutions for enterprise and government markets. The co...

Orange Cyberdefense is the cybersecurity division of Orange Group and a participant in the FranceQCI programme. The company provides managed security ...

Utimaco is a global provider of Hardware Security Modules (HSMs) and one of the leading players in the post-quantum cryptography market. The company l...

Rohde & Schwarz Cybersecurity is a division of the German technology group Rohde & Schwarz, providing high-assurance network security and encryption s...

Infineon Technologies is a global semiconductor manufacturer and player in the quantum cryptography market, providing quantum-safe hardware security c...

Qubalt, founded in 2015, provides quantum-safe cryptographic solutions for the aerospace, defence, and critical infrastructure sectors. Products inclu...

genua is a German IT security company (subsidiary of Bundesdruckerei) specialising in high-security network infrastructure, firewalls, and encrypted c...

QANplatform is a quantum-resistant hybrid blockchain platform founded in Hungary, implementing NIST PQC standards on a public/private blockchain infra...

QNu Labs is India's leading quantum security company, started at IIT Madras in 2016 and builder of India's first quantum key distribution system. The ...

Encryption Consulting is an Irish cryptographic consultancy providing PQC readiness assessments, cryptographic inventory services, CBOM (Cryptographic...

Enquantum is an Israeli post-quantum cryptography vendor providing quantum-resistant security solutions for enterprise and government applications. Th...

Telsy is the cybersecurity and encryption division of the Leonardo Group, providing high-assurance communications security products for Italian govern...

Blu5 Group is an Italian quantum-safe cybersecurity company providing hardware security modules and quantum-resistant encryption solutions. The compan...

NEC Corporation is a major player in quantum security, partnering with NICT and Toshiba on real-world QKD demonstrations. On 16 September 2025, NEC un...

NTT Communications rolled out a PQC-based multi-algorithm secure key exchange system in January 2025 and is developing quantum-safe networking as part...

Fujitsu is developing quantum-safe networking solutions for manufacturing and supply chain environments, with pilots encrypting real-time IoT communic...

Hitachi is developing post-quantum cryptography solutions for industrial control systems, financial services infrastructure, and critical national inf...

NXP Semiconductors is the leading player in the post-quantum cryptography market, providing quantum-safe hardware solutions that integrate PQC directl...

Riscure is a Dutch security testing and evaluation company specialising in hardware security testing, side-channel analysis, and cryptographic impleme...

ResQuant is a Polish hardware-based post-quantum cryptography company developing IP core licences, FPGA accelerators, and proprietary PQC System-on-a-...

Singtel launched the region's first Hybrid Quantum-Safe Network integrating quantum key distribution with post-quantum cryptography. Singtel's Hybrid ...

SK Telecom has been at the forefront of quantum encryption research since establishing its quantum technology research centre in 2011, and in 2018 acq...

KT Corporation is a major Korean telecommunications company that demonstrated a Hybrid Quantum-Secure VPN Service combining QKD and PQC in late 2024, ...

LG Uplus launched AlphaKey, an identity management solution enhancing corporate account security through post-quantum cryptography and homomorphic enc...

Samsung SDS co-developed the AIMer post-quantum digital signature algorithm with KAIST, which was selected as the winning scheme in Korea's national P...

Ericsson is a global telecommunications equipment provider actively developing post-quantum cryptography for 5G networks and telecommunications infras...

Sekoia provides cyber threat intelligence and detection platform services with post-quantum cryptography migration monitoring capabilities. Active in ...

Kudelski Security is a global cybersecurity consultancy and managed security services provider within the Kudelski Group. The company provides post-qu...

QRC Crypto is a Swiss post-quantum cryptography company providing quantum-resistant cryptographic solutions and consulting services. The company devel...

PQShield is a leading post-quantum cryptography company founded in 2018 by Ali El Kaafarani as an Oxford University spin-out. The company's cryptograp...

Post-Quantum is a UK cybersecurity firm creating encrypting and security solutions to counter quantum computing risks, with a focus on cryptographic r...

Arqit Quantum Inc. provides a unique quantum-safe symmetric key agreement encryption platform via satellite and terrestrial delivery, securing communi...

Crypto Quantique provides quantum-driven IoT security solutions, including its QDID (Quantum Device Identity) technology using quantum tunnelling to g...

Avella Security is a UK post-quantum cryptography consultancy providing PQC readiness assessments, migration planning, and quantum-safe implementation...

IBM is a global technology leader and top player in quantum cryptography and post-quantum security. IBM provides a quantum-safe cryptography service f...

SandboxAQ was spun out of Alphabet in 2022 and combines AI and quantum security to help enterprises discover vulnerabilities in cryptographic systems....

QuSecure provides QuProtect, a post-quantum cybersecurity platform offering continuous cryptographic discovery, real-time CBOM generation, and seamles...

DigiCert is a leading certificate authority and one of the top three enterprise PKI vendors globally. The company provides PQC-ready digital certifica...

Keyfactor is the top-ranked enterprise PKI vendor by ABI Research in 2025. The company's EJBCA platform supports FIPS 203 (ML-KEM), FIPS 204 (ML-DSA),...

Quantum Xchange provides the first quantum-secured commercial network in the United States via its Phio Trusted Xchange (TX) key distribution system a...

Qrypt provides quantum-secure encryption solutions delivering everlasting data protection by generating identical cryptographic keys at multiple endpo...

Quantinuum (formed by the merger of Honeywell Quantum Solutions and Cambridge Quantum) provides quantum computing, quantum cybersecurity software incl...

Fortanix provides a data security platform with confidential computing, HSM management, and PQC-ready key lifecycle management. The company's Fortanix...

QryptoCyber specialises in integrated PQC audit tools that identify and manage quantum-vulnerable cryptographic systems, automating the creation of a ...

Palo Alto Networks is one of the top five PQC market players, delivering enterprise-wide quantum security readiness with support for ETSI 014 protocol...

AWS is one of the top five PQC market players, providing a toolkit to scan and test cryptographic usage across cloud environments and offering hybrid ...

Rambus is a semiconductor IP licensing company providing post-quantum cryptography IP cores, security protocol accelerators, and hardware root-of-trus...

Cisco was an early pioneer in quantum-safe networking solutions and remains committed to post-quantum cryptography. The company supports ETSI 014 QKD ...

AppViewX provides certificate lifecycle management (CLM) and PKI automation platforms with strong workflow automation for hybrid cloud environments. T...

Venafi, now part of CyberArk, provides machine identity management and certificate lifecycle management platforms. The company is developing PQC-ready...

InfoSec Global (acquired by Keyfactor in 2025) provided AgileSec Analytics, an agent-based cryptographic discovery platform. AgileSec performs host-ce...