# PQShield UltraPQ-Suite vs QCS Post-Quantum Secure Backup (.qtm): side-by-side comparison (2026) [PQShield UltraPQ-Suite](https://cybersectools.com/tools/pqshield) is a commercial [post-quantum cryptography](https://cybersectools.com/categories/post-quantum-cryptography) solution by [PQShield](https://cybersectools.com/companies/pqshield). [QCS Post-Quantum Secure Backup (.qtm)](https://cybersectools.com/tools/qcs-post-quantum-secure-backup-qtm) is a commercial [post-quantum cryptography](https://cybersectools.com/categories/post-quantum-cryptography) solution by [QCS (Quantum Computing Solutions)](https://cybersectools.com/companies/qcs-quantum-computing-solutions). Features, integrations, deployment and the company behind each one, side by side. ## Our take What our shortlists say about the one we picked. ### [PQShield UltraPQ-Suite](https://cybersectools.com/tools/pqshield) Best for: Product makers building PQC into chips and software PQShield is here for the build side of the move, because it gives your engineers the libraries, chip IP and firmware to ship NIST algorithms in their own products. That fits companies making devices, chips or embedded systems more than teams that need to find and replace cryptography in-house. Ask which form fits your roadmap, whether that is software, IP cores or a firmware upgrade for devices already in the field. From [Best Post-Quantum Cryptography Solutions for Business](https://cybersectools.com/shortlists/best-post-quantum-cryptography-solutions), Fall 2026. Reviewed by [Nika (Nikoloz) Kokhreidze](https://cybersectools.com/about). Need the answer fast? [Best Post-Quantum Cryptography Solutions for Business](https://cybersectools.com/shortlists/best-post-quantum-cryptography-solutions) picks SandboxAQ AQtive Guard, QuSecure QuProtect R3, Venari Adaptive Cryptographic Intelligence Platform and 4 more. ## Side-by-side comparison | | PQShield UltraPQ-Suite | QCS Post-Quantum Secure Backup (.qtm) | |---|---|---| | Pricing model | Commercial | Commercial | | Category | Post-Quantum Cryptography | Post-Quantum Cryptography | | Verified | No | No | | Deployment type | Hybrid | On-Premises | | Company size fit | Mid-Market, Enterprise | Mid-Market, Enterprise | | Company | PQShield | QCS (Quantum Computing Solutions) | | Headquarters | – | – | ### Use cases and capabilities | | PQShield UltraPQ-Suite | QCS Post-Quantum Secure Backup (.qtm) | |---|---|---| | Quantum Safe | Yes | Yes | | Encryption | Yes | Yes | | Hardware Security | Yes | – | | Crypto | Yes | – | | Key Management | Yes | – | | Secure Boot | Yes | – | | NIST | Yes | – | | Hardware | Yes | – | | SDK | Yes | – | | Security Standards | Yes | – | | Data Breach | – | Yes | | GDPR | – | Yes | | Critical Infrastructure | – | Yes | | Healthcare | – | Yes | | Documentation | – | Yes | | Security Architecture | – | Yes | ### Core features **PQShield UltraPQ-Suite** 9 features listed. Sign in on the page to see them. **QCS Post-Quantum Secure Backup (.qtm)** 8 features listed. Sign in on the page to see them. ### Integrations **PQShield UltraPQ-Suite** 2 integrations listed. Sign in on the page to see them. **QCS Post-Quantum Secure Backup (.qtm)** No integrations listed. ## Which one fits you Based on what each listing shows: deployment, company size, price and open source. - [PQShield UltraPQ-Suite](https://cybersectools.com/tools/pqshield) fits if you need both cloud and on-premises options. - [QCS Post-Quantum Secure Backup (.qtm)](https://cybersectools.com/tools/qcs-post-quantum-secure-backup-qtm) fits if you need to run it on your own servers. ## PQShield UltraPQ-Suite vs QCS Post-Quantum Secure Backup (.qtm) FAQ Common questions when comparing PQShield UltraPQ-Suite vs QCS Post-Quantum Secure Backup (.qtm) for post-quantum cryptography. ### What is the difference between PQShield UltraPQ-Suite and QCS Post-Quantum Secure Backup (.qtm)? **PQShield UltraPQ-Suite**: Quantum-safe cryptographic software, hardware IP, and firmware upgrade solutions. Built by PQShield. **QCS Post-Quantum Secure Backup (.qtm)**: Post-quantum file archive format (.qtm) using Kyber/Dilithium for verifiable, offline. Built by QCS (Quantum Computing Solutions). The table above shows where their features, integrations, deployment and company size fit differ. ### Who makes PQShield UltraPQ-Suite and QCS Post-Quantum Secure Backup (.qtm)? **PQShield UltraPQ-Suite** is made by PQShield. **QCS Post-Quantum Secure Backup (.qtm)** is made by QCS (Quantum Computing Solutions). The vendor behind a product decides its roadmap, support, and longevity, so check each company's profile before you commit. ### Is PQShield UltraPQ-Suite a good alternative to QCS Post-Quantum Secure Backup (.qtm)? Often, yes. PQShield UltraPQ-Suite and QCS Post-Quantum Secure Backup (.qtm) are both Post-Quantum Cryptography products, and both cover Quantum Safe, Encryption. Use the table above to see where features, deployment and company size fit differ. ## Related comparisons - [PQShield UltraPQ-Suite vs SylLab Systems](https://cybersectools.com/compare/pqshield-vs-syllab-systems) - [PQShield UltraPQ-Suite vs CypherShield](https://cybersectools.com/compare/cyphershield-vs-pqshield) - [PQShield UltraPQ-Suite vs Fortytwo Labs I-AM](https://cybersectools.com/compare/fortytwo-labs-i-am-vs-pqshield) - [QCS Post-Quantum Secure Backup (.qtm) vs SylLab Systems](https://cybersectools.com/compare/qcs-post-quantum-secure-backup-qtm-vs-syllab-systems) - [QCS Post-Quantum Secure Backup (.qtm) vs CypherShield](https://cybersectools.com/compare/cyphershield-vs-qcs-post-quantum-secure-backup-qtm) - [QCS Post-Quantum Secure Backup (.qtm) vs Fortytwo Labs I-AM](https://cybersectools.com/compare/fortytwo-labs-i-am-vs-qcs-post-quantum-secure-backup-qtm) ## Alternatives to each - [See all PQShield UltraPQ-Suite alternatives](https://cybersectools.com/alternatives/pqshield) - [See all QCS Post-Quantum Secure Backup (.qtm) alternatives](https://cybersectools.com/alternatives/qcs-post-quantum-secure-backup-qtm) --- Source: https://cybersectools.com/compare/pqshield-vs-qcs-post-quantum-secure-backup-qtm For AI agents: each product above has its own Markdown page (add .md to its URL, for example https://cybersectools.com/tools/pqshield.md). Every CybersecTools shortlist is listed at https://cybersectools.com/shortlists.md. More on PQShield UltraPQ-Suite and QCS Post-Quantum Secure Backup (.qtm): 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=compare-md