Sales teams frequently encounter the question: "Do you have a SOC 2 report?" But enterprise procurement teams increasingly ask for ISO 27001 certification instead — or require both. Understanding the difference is essential for compliance leaders planning their assurance roadmap.
The Core Difference
SOC 2 Type II is an attestation report issued by an independent CPA firm, confirming that your controls were operating effectively during a specified period (typically 6–12 months). It is governed by AICPA SSAE 18 and addresses the Trust Services Criteria.
ISO 27001:2022 is a certification issued by an accredited certification body confirming that your Information Security Management System (ISMS) conforms to the ISO standard. It is renewed every three years with annual surveillance audits.
When Enterprise Customers Need SOC 2
- You process financial data or are part of a public company's supply chain (SOX user entity considerations)
- Your customer's external auditor requires a SOC 1 or SOC 2 report to rely on your controls
- You operate primarily in the US market
When They Need ISO 27001
- You operate in European markets where ISO 27001 is the de facto standard
- Your customer's procurement policy specifies ISO 27001 as a vendor requirement
- You are pursuing government or regulated-industry contracts
Many organizations need both. SOC 2 satisfies your US enterprise customers' audit requirements; ISO 27001 satisfies global procurement requirements. The good news: the control frameworks overlap by approximately 70%, so a dual-certification program is more efficient than running two separate programs.