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§ Private Profile · London, United Kingdom
Post-Quantum is a technology company.
Post-Quantum develops production-ready quantum-safe security solutions, offering advanced encryption to protect digital infrastructure from future quantum computing threats. It provides cybersecurity systems designed to safeguard data and critical workflows against emergent quantum cryptanalysis, ensuring robust defense in a post-quantum landscape.
Co-founded by Andersen Cheng in 2009, Post-Quantum was established from the insight that existing cryptographic standards would become vulnerable to powerful quantum computers. Founders recognized an urgent need for proactive defense, aiming to secure digital communications and infrastructure before quantum machines posed an existential threat, positioning the company early in quantum-resistant technology development.
Post-Quantum’s solutions serve organizations managing sensitive operations, including NATO communications and global critical infrastructure. The company envisions establishing a secure digital environment, ensuring enterprises and governments maintain data integrity and operational resilience against cyber threats. It commits to providing enduring security for the quantum era.
Post-Quantum has raised $11.2M across 2 funding rounds.
Post-Quantum has raised $11.2M in total across 2 funding rounds.
Post-Quantum has raised $11.2M across 2 funding rounds. Most recently, it raised $10.3M Series A in July 2016.
| Date | Round | Lead Investors | Other Investors | Status |
|---|---|---|---|---|
| Jul 7, 2016 | $10.3M Series A | AM Partners, VMS Group | — | Announced |
| Mar 1, 2015 | $900K Seed | — | Benchmark, Dave Munichiello, MMC Ventures, Outrun Ventures, Passion Capital, Seedcamp, Daniel Cardenas Clark | Announced |
# Post-Quantum: Quantum-Safe Platform Provider
Post-Quantum is a London-based cybersecurity company that develops quantum-safe cryptographic solutions to protect organizations against threats posed by quantum computing[5]. The company builds a unified platform with modular software for identity, transmission, and encryption that safeguards organizations across their entire digital footprint[7].
Post-Quantum addresses a critical infrastructure challenge: as quantum computers advance, traditional cryptographic methods like RSA and Elliptic Curve Cryptography become increasingly vulnerable[1]. The company serves enterprises and organizations that need to modernize their cryptographic infrastructure before quantum computers render current security obsolete. Its flagship technology, the NTS-KEM (Never The Same — Key Encapsulation Mechanisms) cryptosystem, earned the company a place on the NIST shortlist for global standardization of post-quantum cryptography standards[5].
Post-Quantum was founded in 2009 by Andersen Cheng, CJ Tjhai, and Martin Tomlinson with the explicit mission of "protecting the world's information against current and future threats"[5]. The company emerged during the early recognition that quantum computing posed an existential threat to current encryption standards—a concern that has only intensified as quantum computing research has accelerated.
The founding team's technical credibility was validated when their NTS-KEM cryptosystem advanced to the NIST shortlist, positioning Post-Quantum as a thought leader in standardizing post-quantum cryptography at the global level[5]. This early focus on standards-based solutions rather than proprietary approaches has shaped the company's trajectory and market positioning.
Post-Quantum operates within a rapidly consolidating post-quantum cryptography market driven by regulatory urgency and technological inevitability. The PQC market is dominated by established players—NXP Semiconductors, Thales, AWS, Palo Alto Networks, and IDEMIA—collectively holding 59-70% of market share[3], but specialized companies like Post-Quantum occupy a distinct niche focused on cryptographic modernization and standards compliance.
The timing is critical: organizations face a "harvest now, decrypt later" threat where adversaries collect encrypted data today to decrypt once quantum computers mature. This creates immediate business urgency for enterprises to transition to quantum-safe cryptography, benefiting companies with proven, standards-aligned solutions. Post-Quantum's early focus on NIST standardization positions it favorably as enterprises seek solutions aligned with emerging regulatory requirements and industry standards.
Post-Quantum is well-positioned to capture market share among enterprises prioritizing cryptographic modernization and standards compliance. As quantum computing advances and regulatory frameworks increasingly mandate post-quantum cryptography adoption, the company's unified platform approach and standards-aligned technology provide competitive advantages over both point-solution startups and legacy security vendors retrofitting quantum-safe capabilities.
The company's future likely involves deepening integration with enterprise infrastructure, expanding its modular platform to address emerging use cases, and potentially becoming an acquisition target for larger cybersecurity or infrastructure companies seeking credible post-quantum capabilities. In a landscape where quantum computing represents an existential threat to digital security, Post-Quantum's 15-year focus on this specific problem—combined with NIST validation—makes it a meaningful player in the critical infrastructure security ecosystem.
Post-Quantum has raised $11.2M in total across 2 funding rounds.
Post-Quantum's investors include AM Partners, VMS Group, Benchmark, Dave Munichiello, MMC Ventures, Outrun Ventures, Passion Capital, Seedcamp, Daniel Cardenas-Clark.