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Sierra Technologies

Security and trust center evidence

Sierra is the conversational AI platform for

sierra.aiAI assistantsLast verified 26 Oct 2026
Vendor website Are you Sierra Technologies?

Summary

PCI DSS mark, CertReports state Verified as of 26 Oct 2026PCI DSSVerifiedCSA STAR mark, CertReports state Verified as of 26 Oct 2026CSA STARVerifiedEU-US Data Privacy Framework mark, CertReports state Verified as of 26 Oct 2026DPFVerified

Sierra Technologies has 3 registry-verified rows in the CertReports index, last verified 26 Oct 2026. The strongest row is PCI DSS: Listed on the Visa Global Registry as PCI DSS validated through 2027-01-31. This page is independent of the vendor’s own trust centre: dates, sources and caveats come from CertReports captures.

Reviewer brief

Sierra Technologies is listed on the Visa Global Registry as PCI DSS validated, audited by SISA, originally issued 23 Sep 2021 and current through 31 Jan 2027 as of 19 Oct 2026. Sierra Technologies is listed in the CSA STAR registry with a Level 1 self-assessment, issued 3 Apr 2025, as of 19 Oct 2026. Sierra Technologies is listed in the EU-US Data Privacy Framework registry as active, including EU-US, Swiss-US and UK Extension certifications, issued 22 Jun 2026 and current through 22 Jun 2027 as of 19 Oct 2026. No public evidence was found for SOC 2 for Sierra Technologies as of 19 Oct 2026. No public evidence was found for HIPAA or ISO/IEC 27001 for Sierra Technologies as of 19 Oct 2026.

  • PCI DSS: listed on Visa Global Registry, valid through 31 Jan 2027, audited by SISA (as of 19 Oct 2026)
  • CSA STAR: listed in CSA STAR registry, Level 1 self-assessment issued 3 Apr 2025 (as of 19 Oct 2026)
  • EU-US Data Privacy Framework: listed as active, valid through 22 Jun 2027 (as of 19 Oct 2026)

Facts only, each dated; nothing here is inferred, scored or advised. Brief generated 21 Oct 2026; it is regenerated whenever a row changes.

Among ai assistants vendors

3verified rows

Category median 0, across 28 indexed ai assistants vendors. Sierra Technologies has more verified rows than 96 percent of them.

chatbotconversational-aicustomer-engagementvirtual-agent

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Compliance grid

No public evidence yet for HIPAA, SOC 2, GDPR, FedRAMP, ISO 27001, Cyber Essentials, ISO 27701, ISO 42001. This does not mean the vendor lacks them; it means nothing public was found at the last check.

Subprocessors

No subprocessor list captured yet.

Change history

  1. 19 Oct 2026PCI DSS auditor changedAuditor changed from Securisea, Inc. to SISA.
  2. 18 Sep 2026First indexed by CertReports3 evidence rows across 3 frameworks entered the index.

Evidence against regulations

All regulations for Sierra Technologies

How much of each regulation’s vendor requirements Sierra Technologies’s public evidence reaches.

Reviewing a vendor on public evidence

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