[Home](https://cybersectools.com/) / [Categories](https://cybersectools.com/categories) / [Quantum Security](https://cybersectools.com/categories/quantum-security) / Post-Quantum Cryptography # Post-Quantum Cryptography Solutions 2026 Post-quantum cryptography (PQC) solutions get your encryption ready for quantum computers. A large enough quantum computer could break RSA and elliptic-curve cryptography, which protect most data and connections today. This category covers the new quantum-resistant algorithms, solutions that find every place you use cryptography (a cryptographic inventory), crypto-agility platforms that let you swap algorithms without rewriting apps, and solutions that plan and run the migration. The urgency comes from "harvest now, decrypt later": attackers can copy encrypted data today and read it once a capable quantum machine exists. For most teams the first step is the inventory, because you cannot migrate what you cannot see. Quantum key distribution and quantum random number hardware have their own subcategory. 20 commercial products · [What is Post-Quantum Cryptography (PQC)?](https://cybersectools.com/glossary/post-quantum-cryptography) ## Featured on CybersecTools Paid placement: Featured vendors pay for a plan and show first. The shortlist positions are earned. [How we label paid slots](https://cybersectools.com/methodology) - [Strike48 Platform](https://www.strike48.com/platform?utm_source=cybersectools.com&utm_medium=featured) (Featured): Security Operations - [SecureIntent](https://secureintent.ai/?utm_source=cybersectools.com&utm_medium=featured) (Featured): Data Protection - [Fortra](https://www.fortra.com/?utm_source=cybersectools.com&utm_medium=featured) (Featured): Data Protection - [Lunar](https://lunarcyber.com/?utm_source=cybersectools.com&utm_medium=featured) (Featured): Threat Intelligence - [Hudson Rock](https://www.hudsonrock.com/?utm_source=cybersectools.com&utm_medium=featured) (Featured): Threat Intelligence - [Daylight Security](https://daylight.ai/?utm_source=cybersectools.com&utm_medium=featured) (Featured): Security Operations The shortlist ## [Best Post-Quantum Cryptography Solutions for Business](https://cybersectools.com/shortlists/best-post-quantum-cryptography-solutions) 1. SandboxAQ AQtive Guard 2. QuSecure QuProtect R3 3. Venari Adaptive Cryptographic Intelligence Platform [and 4 more](https://cybersectools.com/shortlists/best-post-quantum-cryptography-solutions) Reviewed by [Nika (Nikoloz) Kokhreidze](https://cybersectools.com/about). Updated 2026-11-01. [Read the Post-Quantum Cryptography shortlist](https://cybersectools.com/shortlists/best-post-quantum-cryptography-solutions) ## The Quantum Security market Company data as of 2026-11-05 - 42 companies sell in this market - $650M raised in 18 rounds in the last 12 months - 1 acquired in the last 12 months - 6 founded in the last two years [Explore the Quantum Security market on Mandos](https://mandos.io/data/companies?utm_source=cybersectools.com&utm_medium=category&utm_campaign=quantum-security) ## Post-Quantum Cryptography solutions All 22 · Free 2 · Commercial 20 1. [PQShield UltraPQ-Suite](https://cybersectools.com/tools/pqshield) (Post-Quantum Cryptography): Quantum-safe cryptographic software, hardware IP, and firmware upgrade solutions. 2. [ZeroTier Quantum](https://cybersectools.com/tools/zerotier-quantum) (Post-Quantum Cryptography): Post-quantum secure network overlay platform for distributed environments. 3. [QCS Post-Quantum Secure Backup (.qtm)](https://cybersectools.com/tools/qcs-post-quantum-secure-backup-qtm) (Post-Quantum Cryptography): Post-quantum file archive format (.qtm) using Kyber/Dilithium for verifiable, offline 4. [Mumken PQC Platform](https://cybersectools.com/tools/mumken-pqc-platform) (Post-Quantum Cryptography) 5. [Fortytwo Labs I-AM](https://cybersectools.com/tools/fortytwo-labs-i-am) (Post-Quantum Cryptography) 6. [CypherShield](https://cybersectools.com/tools/cyphershield) (Post-Quantum Cryptography): Software platform providing quantum-resistant encryption, key exchange, and auth. 7. [SylLab Systems](https://cybersectools.com/tools/syllab-systems) (Post-Quantum Cryptography): Post-quantum security platform for space, IoT, edge, and critical systems. 8. [Post-Quantum Quantum Safe Platform](https://cybersectools.com/tools/post-quantum-quantum-safe-platform) (Post-Quantum Cryptography): Modular PQC platform covering identity, VPN, and messaging security. 9. [MerlinCryption ASBE](https://cybersectools.com/tools/merlincryption-asbe) (Post-Quantum Cryptography): Nondeterministic block encryption algo resistant to quantum & AI attacks. 10. [LokDon ECSMID & DataShieldAI](https://cybersectools.com/tools/lokdon-ecsmid-and-datashieldai) (Post-Quantum Cryptography): Client-side encryption & AI-driven data security platform for enterprises. 11. [KvantPhone](https://cybersectools.com/tools/kvantphone) (Post-Quantum Cryptography): Encrypted mobile voice & messaging app using post-quantum cryptography. 12. [ISARA Radiate Quantum-Safe Toolkit](https://cybersectools.com/tools/isara-radiate-quantum-safe-toolkit) (Post-Quantum Cryptography): SDK for integrating NIST-standardized PQC algorithms into apps and devices. 13. [Arqit SKA-Platform](https://cybersectools.com/tools/arqit-ska-platform) (Post-Quantum Cryptography): Quantum-safe key agreement platform for securing comms across endpoints. 14. [Arqit NetworkSecure](https://cybersectools.com/tools/arqit-networksecure) (Post-Quantum Cryptography): Quantum-safe VPN hardening via on-demand encrypted key orchestration. 15. [Matrics2](https://cybersectools.com/tools/matrics2) (Post-Quantum Cryptography): One-time pad encryption system for secure data transmission over internet 16. [VaultysID-Q](https://cybersectools.com/tools/vaultysid-q) (Post-Quantum Cryptography): Post-quantum cryptographic authentication solution with passwordless access 17. [QNu Hodos - Post Quantum Cryptography (PQC)](https://cybersectools.com/tools/qnu-hodos-post-quantum-cryptography-pqc) (Post-Quantum Cryptography): Quantum-resistant public key cryptography software based on NIST PQC standards 18. [QSE Cloud Storage (QSE CDS)](https://cybersectools.com/tools/qse-cloud-storage-qse-cds) (Post-Quantum Cryptography): Quantum-resilient decentralized cloud storage with QRNG-based encryption 19. [BlockAPT Quantum](https://cybersectools.com/tools/blockapt-quantum) (Post-Quantum Cryptography): Quantum-secure VPN solution protecting data-in-motion and data-at-rest 20. [CypheronLabs Cypheron-core](https://cybersectools.com/tools/cypheronlabs-cypheron-core) (Post-Quantum Cryptography · Free): Post-quantum cryptography library with NIST-standardized algorithms 21. [Certes DPRM](https://cybersectools.com/tools/certes-dprm) (Post-Quantum Cryptography): Quantum-safe data protection platform securing data in transit with encryption 22. [OpenFHE](https://cybersectools.com/tools/openfhe) (Post-Quantum Cryptography · Free): OpenFHE is an open-source library implementing post-quantum Fully Homomorphic Encryption schemes with simplified APIs and cross-platform support. 20 commercial products · 2 free products under [Free solutions](https://cybersectools.com/free) | Related: [Cryptographic Inventory & Crypto-Agility](https://cybersectools.com/categories/crypto-inventory-agility) · [Quantum Key Distribution & QRNG](https://cybersectools.com/categories/qkd-qrng) · [Quantum-Safe Hardware & Communications](https://cybersectools.com/categories/quantum-safe-hardware) ## How to choose Post-Quantum Cryptography solutions - Start with a cryptographic inventory. Find every certificate, key, library, and protocol that uses RSA or elliptic-curve cryptography before you plan the migration. - Confirm PQC implementations follow the final NIST standards (ML-KEM, ML-DSA, SLH-DSA) rather than early drafts, and that hybrid classical-plus-PQC modes are supported. - Check how well it connects to your certificate authorities, HSMs, and key management systems, since the migration breaks if these do not work together. - Look for real crypto-agility: the ability to swap algorithms through policy without re-architecting applications. - Favor solutions that produce an auditable cryptographic bill of materials and tie findings to a migration plan, since regulators and boards will ask to see both. ## Articles about Post-Quantum Cryptography Shortlists, buying guides and market analysis from our resource library. - [Best Post-Quantum Cryptography Solutions for Business](https://cybersectools.com/shortlists/best-post-quantum-cryptography-solutions): Compare 7 post-quantum cryptography solutions, like SandboxAQ AQtive Guard, QuSecure and PQShield, on crypto inventory, NIST algorithms and migration. ## Post-Quantum Cryptography Solutions FAQ Common questions about Post-Quantum Cryptography solutions: how to choose, pricing and comparisons. ### What is post-quantum cryptography? Post-quantum cryptography is a set of new encryption and signature algorithms built to resist attacks from quantum computers. They run on ordinary computers and networks, so no special hardware is needed. NIST has published the first standards: ML-KEM for key exchange, and ML-DSA and SLH-DSA for digital signatures. PQC solutions help you adopt these algorithms and move off the old ones. ### How is post-quantum cryptography different from quantum key distribution? Post-quantum cryptography uses new math that runs on ordinary computers and resists quantum attacks. You can deploy it in software today. Quantum key distribution (QKD) uses the physics of light to exchange keys over dedicated hardware and links, and it detects eavesdropping at the physical layer. QKD suits a small number of high-assurance links and sits in the Quantum Key Distribution & QRNG subcategory. ### Do I need post-quantum solutions now, or can this wait? The full migration can wait, but the discovery work should not. The risk is harvest now, decrypt later: attackers capture encrypted data today to read once quantum computers can break it. Anything that must stay secret for years, like health records, state secrets, or intellectual property, is exposed now. Building a cryptographic inventory and a migration plan is the sensible first step. ### What is crypto-agility? Crypto-agility means you can change the algorithms your systems use through policy or configuration, without rebuilding each app. It matters because standards will keep changing. A weak algorithm found later should not mean another multi-year project. Solutions here map where each algorithm is used and help you switch it in one place. ### Is open-source post-quantum cryptography enough, or do I need a commercial solution? Open-source libraries like Open Quantum Safe give engineers working PQC algorithms and are good for building and testing. Commercial solutions earn their place around those algorithms: finding every place cryptography lives across your estate, managing certificates and keys at scale, enforcing crypto-agility policy, and connecting to HSMs and certificate authorities. Most enterprises use both: libraries for the math and a platform for the program. --- Source: https://cybersectools.com/categories/post-quantum-cryptography For AI agents: every CybersecTools shortlist is listed at https://cybersectools.com/shortlists.md. More on the Post-Quantum Cryptography vendors: funding, momentum, hiring and news, plus the full product and company record, are available through the Mandos MCP Server (paid plans), which connects to AI assistants: https://mandos.io/mcp?utm_source=cybersectools.com&utm_medium=category-md