Sierra

    Voice agentHQ · USWebsite As at 28 July 2026
    This tracker records only what each vendor has published on its own public pages. It is not an assessment, audit, certification or endorsement. Vendors change their documentation — always verify directly before making a procurement decision.

    Data storage region

    ValueChecked 28 July 2026
    General privacy policy states personal information may be transferred, processed and stored anywhere in the world, including the United States. No product-level data residency region stated on the pages checked.
    “All personal information processed by us may be transferred, processed, and stored anywhere in the world, including, but not limited to, the United States”
    sierra.ai

    Data processing region

    ValueChecked 28 July 2026
    Not disclosed / not found
    We could not find this published on the vendor's public pages as at the check date. This is not a statement that the vendor lacks the capability or failed to disclose it.
    sierra.ai

    Model provenance

    ValueChecked 28 July 2026
    Vendor states agents are built on a combination of frontier, open-weight and proprietary models (described elsewhere as 15+ models). No model provider names stated on the pages checked.
    “Sierra is built on a constellation of LLMs—combining frontier, open-weight, and proprietary models—so your agent can execute seamlessly and reliably.”
    sierra.ai

    Subprocessors

    ValueChecked 28 July 2026
    Not disclosed / not found
    We could not find this published on the vendor's public pages as at the check date. This is not a statement that the vendor lacks the capability or failed to disclose it.
    trust.sierra.ai

    Certifications

    ValueChecked 28 July 2026
    Vendor states compliance standards including SOC 2, HIPAA, GDPR, PCI, FedRAMP High, CCPA, CSA STAR, ISO 27001 and ISO 42001; also states PCI DSS Level 1 Service Provider certification.
    “Sierra is committed to maintaining the highest compliance standards for our customers, including SOC 2, HIPAA, GDPR, PCI, FedRAMP High, CCPA, CSA STAR, ISO 27001, and ISO 42001.”
    sierra.ai

    TGA status

    ValueChecked 28 July 2026
    Not disclosed / not found
    We could not find this published on the vendor's public pages as at the check date. This is not a statement that the vendor lacks the capability or failed to disclose it.
    sierra.ai

    PMS integrations

    ValueChecked 28 July 2026
    Not disclosed / not found
    We could not find this published on the vendor's public pages as at the check date. This is not a statement that the vendor lacks the capability or failed to disclose it.
    sierra.ai

    ANZ entity

    ValueChecked 28 July 2026
    Not disclosed / not found
    We could not find this published on the vendor's public pages as at the check date. This is not a statement that the vendor lacks the capability or failed to disclose it.
    sierra.ai

    Support hours

    ValueChecked 28 July 2026
    Not disclosed / not found
    We could not find this published on the vendor's public pages as at the check date. This is not a statement that the vendor lacks the capability or failed to disclose it.
    sierra.ai
    Right of reply

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