- QuSecure QuProtect R3
Best for: Teams adding quantum-safe protection without code changes
QuProtect R3 earns its place because it fixes at the network layer, so you can add quantum-safe key exchange without changing code or taking systems down. That suits mid-market and enterprise teams with legacy systems they cannot rewrite soon, and hybrid ML-KEM keeps classical clients working. Ask how it handles cryptography that lives inside your applications, because a network fix does not reach that.
From Best Post-Quantum Cryptography Solutions for Business, Fall 2026
- SandboxAQ AQtive Guard
Best for: Large companies wanting a full cryptography inventory
AQtive Guard leads with discovery, which is where any post-quantum move has to start, because you cannot replace what you have not found. It suits mid-market and enterprise companies that must show progress against CNSA 2.0 and NIST mandates, and it plugs into ServiceNow, GitHub, GitLab and AWS. Ask how much of the replacement work it carries out and how much it plans for your teams, so you know what effort is left.
From Best Post-Quantum Cryptography Solutions for Business, Fall 2026
