Best Post-Quantum Quantum Safe Platform Alternatives & Competitors in 2026

Arqit SKA-Platform

Quantum-safe key agreement platform for securing comms across endpoints.

BlockAPT Quantum

Quantum-secure VPN solution protecting data-in-motion and data-at-rest

ZeroTier Quantum

Post-quantum secure network overlay platform for distributed environments.

PQShield Quantum-safe Software & Hardware

Quantum-safe cryptographic software, hardware IP, and firmware upgrade solutions.

Matrics2

One-time pad encryption system for secure data transmission over internet

Arqit NetworkSecure

Quantum-safe VPN hardening via on-demand encrypted key orchestration.

ISARA Radiate Quantum-Safe Toolkit

SDK for integrating NIST-standardized PQC algorithms into apps and devices.

Certes DPRM

Quantum-safe data protection platform securing data in transit with encryption

SylLab Systems

Post-quantum security platform for space, IoT, edge, and critical systems.

CypherShield

Software platform providing quantum-resistant encryption, key exchange, and auth.

QCS Post-Quantum Secure Backup (.qtm)

Post-quantum file archive format (.qtm) using Kyber/Dilithium for verifiable, offline

QNu Hodos - Post Quantum Cryptography (PQC)

Quantum-resistant public key cryptography software based on NIST PQC standards

VaultysID-Q

Post-quantum cryptographic authentication solution with passwordless access

Guardtime KSI Blockchain

Hash-based blockchain tech for quantum-immune data integrity & authentication.

KvantPhone

Encrypted mobile voice & messaging app using post-quantum cryptography.

MerlinCryption ASBE

Nondeterministic block encryption algo resistant to quantum & AI attacks.

ISG Federal

Post-quantum crypto discovery, agility & mgmt for US gov agencies.

CypheronLabs Cypheron-core

Post-quantum cryptography library with NIST-standardized algorithms

QSE Cloud Storage (QSE CDS)

Quantum-resilient decentralized cloud storage with QRNG-based encryption

LokDon ECSMID & DataShieldAI

Client-side encryption & AI-driven data security platform for enterprises.

OpenFHE

OpenFHE is an open-source library implementing post-quantum Fully Homomorphic Encryption schemes with simplified APIs and cross-platform support.