Since 2007
19 years of continuous editorial operation. Listings audited and re-audited as the directory ages — no stale 2008 records masquerading as live.
Some links on DirJournal are affiliate links. We only recommend verified businesses that clear our 12-point editorial audit standard.
Independent. Human-Curated. Established 2007.
Consultants helping organisations migrate to post-quantum cryptography to future-proof data security.
Quantum-Resistant Encryption Consulting currently lists 8 entities pending editorial audit.
Verified status arrives after a 12 point audit covering entity ownership, citation consistency across answer engines, schema validity, and operating history.
Ranking weights editorial tier and entity health score across the full listed set. No listings here carry the verification badge yet — they appear in order of editorial signal. Last updated .
Quantinuum provides integrated quantum computing hardware and software with a dedicated cybersecurity division offering quantum-origin random number generation and post-quantum security products.
Authority Score
IBM Quantum Safe provides enterprise post-quantum cryptography consulting and tooling, helping organizations discover cryptographic assets and migrate to NIST-approved quantum-safe algorithms.
Crypto4A provides quantum-safe hardware security modules and cryptographic infrastructure enabling organizations to protect sensitive data against both current and future quantum threats.
ISARA Corporation provides quantum-safe cryptographic solutions and migration consulting, helping enterprises and governments adopt NIST post-quantum standards to protect long-lived data.
QuSecure provides quantum-safe cybersecurity solutions for US government and enterprise clients, delivering post-quantum encryption orchestration to protect data against future quantum attacks.
Why Trust DirJournal
19 years of continuous editorial operation. Listings audited and re-audited as the directory ages — no stale 2008 records masquerading as live.
Every entry clears a 12-point editorial audit before publication. No pay-to-play ranking — listing position reflects merit, not ad spend.
Schema-validated for ChatGPT, Gemini, and Perplexity. Machine-readable trust signals that AI engines parse and cite with confidence.
Join 8 listed Quantum-Resistant Encryption Consulting providers. One payment, lifetime authority.
Secure Your $249.95 Permanent ListingList Your Business
Join 8 listed Quantum-Resistant Encryption Consulting providers