Competitive analysis
How QNSP compares against the PQC + KMS vendors a buyer actually sees on a shortlist.
Five named vendors, each with a deep-dive comparison page. Every claim on every comparison page is sourced from the vendor's primary documentation, named press, or QNSP source code at github.com/cuilabs/qnsp-public. We don't make claims we can't substantiate with a public link.
The PQC vendor landscape in May 2026 splits into four buckets: (1) PQC platform specialists like Fortanix and SandboxAQ; (2) cloud-hyperscaler KMS defaults — AWS, Azure, GCP; (3) secrets-management incumbents (HashiCorp Vault); and (4) the hardware / silicon / certificate-authority layer (NXP, PQShield, Thales, DigiCert, Entrust) which sit at a different layer of the stack. The five vendor comparisons below cover the four buckets that show up on actual PQC platform RFPs.
Deep-dive comparisons
Five vendors, one click each
QNSP vs Fortanix DSM
Shortlist stapleHSM/KMS incumbent with a PQC layer
Mature HSM+KMS with 10-year history, ~$135M raised. Recently added multi-source quantum entropy (Qrypt + Quantum Dice partnership, March 2026). Strong on confidential compute manager (TDX / SEV-SNP / NVIDIA GPUs). Public PQC algorithm list is narrower than QNSP's. Singapore office exists; PDPA / MAS TRM not enumerated on the public Trust Center.
Headline fact: 4 PQC algorithms publicly listed vs QNSP's 90
Read the full comparison →
QNSP vs SandboxAQ AQtive Guard
Shortlist stapleCryptographic discovery + AI-SPM orchestration
Alphabet spin-out, ~$5.75B valuation, ~$950M+ raised. Mature discovery story (6 scanning surfaces). 2026 pivot toward AI-SPM with Runtime Guardrails + MCP risk analysis. Named customer book (U.S. Department of War 5-year contract, Air Force, Vodafone, SoftBank, Mount Sinai). Not a KMS / vault / storage product — operates above customer-owned crypto infrastructure.
Headline fact: Discovery + orchestration layer (no own KMS / vault / storage)
Read the full comparison →
QNSP vs AWS KMS
Ecosystem defaultCloud-default KMS for AWS-resident workloads
The path of least resistance for AWS-only customers. Hybrid X25519+ML-KEM-768 enabled in TLS handshake for Secrets Manager endpoint (April 2026), but stored keys still wrap with classical material. AWS-only, no cross-cloud portability.
Headline fact: No NIST-finalized PQC algorithms in the KMS data plane today
Read the full comparison →
QNSP vs Azure Key Vault
Ecosystem defaultCloud-default KMS for Microsoft-shop workloads
FIPS 140-3 L3 Managed HSM (Marvell LiquidSecurity). Strong Microsoft ecosystem moat (AD-CS, M365, Windows Server 2025 CNG via SymCrypt). Microsoft's roadmap: 2029 default-on, 2033 full transition. Azure-only.
Headline fact: Zero PQC algorithms in Key Vault data plane as of April 2026
Read the full comparison →
QNSP vs HashiCorp Vault
Shortlist stapleSecrets management market leader
Source-available secrets management built around dynamic credentials and rotation. Strong on operational maturity, weak on PQC-native key operations. Open-source Vault is free to run; HCP Vault has a free tier; Vault Enterprise is commercial.
Headline fact: PQC operations not native to the secrets API
Read the full comparison →
Master feature matrix
How QNSP compares — feature by feature
33 features across 8 capability clusters, scored against cloud providers, security tools, and PQC tooling vendors. Each row's QNSP claim is independently reproducible from the public mirror.
Competitor landscape
Where incumbents fall short — and where QNSP fills the gap
The three categories of incumbent that a PQC platform buyer is comparing against. Each block names vendors, lists their genuine strengths, and the gaps QNSP closes.
Cloud Providers
Cloud providers are rolling out PQC primarily through primitives (KMS, certificates, TLS endpoints) and managed services. This lowers the barrier to adoption, but customers still assemble end-to-end enforcement across ingress, policy, audit evidence, storage/search workflows, and incident automation.
Vendors
- PQC primitives in KMS / secrets / certificate services and selected TLS endpoints
- Broad managed service catalogs (storage, search, AI) with varying security/enforcement cohesion
- Identity + policy products exist, but cross-service, evidence-grade enforcement is usually an integration project
Strengths
- Global footprint, managed services, and operational maturity
- PQC exposure through standard interfaces (TLS, KMS) accelerates early adoption
- Compliance programs and enterprise procurement pathways
Gaps vs. QNSP
- Often focused on primitives rather than end-to-end tenant policy + audit evidence
- Customers still stitch together ingress enforcement, signed ingestion, retention, and incident automation
- Consistency across services varies; strong outcomes often require additional control-plane buildout
Security Tools
Security tools deliver best-in-class point capabilities (vaults, PAM, edge access, SIEM/SOAR). They can be critical building blocks, but the end-to-end outcome (tenant policy, capability enforcement, signed audit evidence, and secure data workflows) is usually assembled across multiple vendors and systems.
Vendors
- Vaults / PAM for secrets and credential rotation
- Edge access + WAF/Zero Trust posture controls
- SIEM/SOAR for monitoring and response automation
Strengths
- Mature deployments for identity/edge/PAM use cases
- Good fit for incremental adoption (swap one control at a time)
- Broad ecosystem integrations
Gaps vs. QNSP
- Often focused on one layer rather than cross-service, tenant-scoped enforcement
- Doesn't typically unify storage/search/AI workflows under a single policy + capability model
- Audit evidence exists, but it's rarely delivered as a single, tamper-evident platform trail
PQC Tooling
PQC tooling vendors focus on crypto-agility and migration readiness (PKI lifecycle, discovery, HSM options, and PQC primitives). They can accelerate planning and rotation, but typically don't deliver the full platform surface: secure ingress + signed ingestion, per-tenant policy enforcement, evidence-grade audit, and secure data workflows.
Vendors
- Crypto posture / inventory + certificate lifecycle automation
- Hardware-backed key protection options and PQC primitives
- Rotation orchestration for PKI and machine identity surfaces
Strengths
- Deep cryptographic specialization and migration readiness tooling
- Helpful for inventory, policy design, and lifecycle automation at scale
Gaps vs. QNSP
- Usually not a full stack for tenants, audit trails, storage/search workflows, or billing/metering
- Integration and operational ownership remains with the customer or SI
Make the call
Compare us against your shortlist.
If a vendor you're evaluating isn't on this page, email qnsp-sales@cuilabs.io — we'll publish an honest comparison page within a week. If anything here is wrong or outdated, same address: we re-verify and correct.