Post-Quantum
Techstars '15London, GB · Founded 2009 · 8 employees on LinkedIn · 4 known investors
Post-Quantum develops quantum-safe cryptographic solutions and standards for protecting sensitive communications and critical infrastructure against quantum computing threats. The company serves government, defense, and enterprise organizations worldwide with production-ready technologies used in NATO communications and critical infrastructure protection.
Investors · 4
Competitors · 8
by search overlap
QuSecure39 shared keywordsQuSecure provides a cryptographic management platform that discovers, remediates, and reports on encryption across cloud, on-premises, and legacy systems. The platform enables organizations to modernize their cryptography and transition to post-quantum encryption standards for enterprise and government customers.
Palo Alto Networks39 shared keywordsPalo Alto Networks provides cybersecurity platforms and services to protect organizations' digital infrastructure across cloud, network, and security operations. The company serves enterprise organizations, governments, financial institutions, utilities, and healthcare providers globally.
PQShield38 shared keywordsPQShield develops quantum-resistant cryptography in hardware and software, including post-quantum cryptography (PQC) solutions for chips, applications, and cloud environments. It serves organizations, industries, and nations across the technology supply chain, and has contributed to the international standardization of post-quantum algorithms.
Cloudflare Turnstile34 shared keywordsCloudflare provides a global cloud network platform delivering security, performance, and development services through sixty-plus integrated services including SASE, application security, and full-stack development infrastructure.
ArrowPoint27 shared keywordsCisco provides networking, data center, and security technology for enterprises, including infrastructure to run traditional and AI workloads and tools to keep organizations running against cyberattacks and outages. Its platform connects networking devices and monitors security events across corporate networks.
Netezza26 shared keywordsIBM is a global technology company whose business spans enterprise software (including Red Hat, HashiCorp, and Confluent), IT infrastructure such as mainframes, servers, and storage, and IT consulting services. The company is also investing heavily in quantum computing and AI-based enterprise offerings, including its Lightwell open-source software security clearinghouse and the Anderon quantum wafer foundry.
Keyfactor25 shared keywordsKeyfactor provides a platform for managing machine identities and cryptography, giving security teams visibility and control over certificates, PKI, and code signing across their environments. It targets enterprises and government agencies seeking to secure data, machines, and AI while preparing for post-quantum cryptography.
Proton17 shared keywordsProton develops free and open-source privacy and security software including encrypted email, contacts, and VPN services. The company uses its technology and resources to defend digital freedom, internet access, and privacy rights globally, particularly for journalists, activists, and people living under authoritarian regimes.
Companies competing with Post-Quantum for the same Google search keywords, organic and paid, via search-intersection analysis.
In the news
$17M Seed Funds QIZ Security’s Post-Quantum Cybersecurity Platformquantumzeitgeist.com · Jul 2026Frequently asked questions
- What does Post-Quantum do?
- Post-Quantum develops quantum-safe cryptographic solutions and standards for protecting sensitive communications and critical infrastructure against quantum computing threats. The company serves government, defense, and enterprise organizations worldwide with production-ready technologies used in NATO communications and critical infrastructure protection.
- Who are Post-Quantum's investors?
- Post-Quantum's investors include Outrun Ventures, Techstars, Bessemer Venture Partners, Evolution Equity Partners.
- Where is Post-Quantum headquartered?
- Post-Quantum is headquartered in London, GB.