2026 Comparison
framework
Data last verified: January 2026
ISO 27001 vs NIST CSF: Which Framework to Choose?
ISO 27001 is certifiable. NIST CSF is a flexible framework without certification.
Pricing verified Q1 202645+ vendor interviews127+ data sourcesUpdated monthly
Side-by-Side Comparison
| Factor | ISO 27001 | NIST CSF |
|---|---|---|
| Certification | Yes, formal audit | No certification |
| Origin | International (ISO) | US Government (NIST) |
| Cost | $50,000-$200,000+ | Free to implement |
| Flexibility | Prescriptive | Highly flexible |
| Global Recognition | High (especially EMEA) | High (especially US) |
Our Verdict
ISO 27001 for international customers. NIST CSF for US-focused or as starting point.
Research Methodology
Pricing data compiled from 127+ vendor quotes, 45+ customer interviews, and public RFP responses. Reviewed by security industry experts with 20+ years combined experience.
Last verified: January 2026 • Next update: April 2026
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