Sierra Technologies: DPA, subprocessors and transfers

Links last opened 6 October 2026. Record confirmed by a person on 5 October 2026. 2 recorded changes, listed below.

Sierra Technologies contracts through Sierra Technologies, Inc., registered in United States. Transfers of personal data out of the EEA are covered by EU-US Data Privacy Framework (DPF). Its trust center is published at https://trust.sierra.ai/. Its sub-processor list is published by Sierra Technologies itself; the link is below. We open those pages every day — last on 6 October 2026 — and a person last went through this record on 5 October 2026.

Contracting legal entity: Sierra Technologies, Inc.
Country of registration: United States
Transfer mechanism: EU-US Data Privacy Framework (DPF)
A US certification scheme covered by an EU adequacy decision. Transfers to a certified US organisation need no further mechanism for the certified scope.
Data processing agreement: We read Sierra Technologies's own site on 21 October 2026 and found none there. It may exist behind a login or on request — this says what a visitor can reach, not what the company has.
Subprocessor list: https://trust.sierra.ai/subprocessors
Security or trust page: https://trust.sierra.ai/

What to put in your subprocessor list

A ready row. Replace the purpose with what your client actually uses Sierra Technologies for.

Subprocessor	Legal entity	Country	Purpose	Transfer	DPA
Sierra Technologies	Sierra Technologies, Inc.	US	AI providers	DPF	—

Questions people ask about Sierra Technologies

Where is Sierra Technologies's sub-processor list?: Sierra Technologies publishes the list of its own sub-processors at https://trust.sierra.ai/subprocessors. We last opened that link on 6 October 2026.
Which legal entity does Sierra Technologies contract through?: Sierra Technologies, Inc., registered in United States. That is the name to put in a record of processing or a sub-processor list, not the brand.
What covers a transfer of personal data to Sierra Technologies outside the EEA?: EU-US Data Privacy Framework (DPF). A US certification scheme covered by an EU adequacy decision. Transfers to a certified US organisation need no further mechanism for the certified scope. Whether that is enough for a particular processing operation is a judgement for the controller.
Where is Sierra Technologies's trust center?: Sierra Technologies publishes it at https://trust.sierra.ai/. A trust center, trust page or security page is the same thing under different names: the vendor's own account of how it protects data, and the place it keeps its certifications. It is Sierra Technologies's page, so we link to it rather than repeat what it says.

What has changed, and when

Changes we noticed on Sierra Technologies's own pages, each with the page we saw it on. The vendor does not publish this, and neither does anyone else.

5 October 2026
We recorded changes to the transfer mechanism, the UK transfer mechanism.
5 October 2026
We recorded a change to the trust or security page.

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Worked out from the registry and what we have written: the country this vendor contracts from, the guides that answer the question this page raises, and the rest of the registry.

Other ai providers

Six of them. All ai providers in the registry · others that transfer the same way.

Subprocessor

Legal entity

Country

Purpose

Transfer

DPA

Sierra Technologies

Sierra Technologies, Inc.

AI providers

DPF

—

Questions people ask about Sierra Technologies

Where is Sierra Technologies's sub-processor list?

Sierra Technologies publishes the list of its own sub-processors at https://trust.sierra.ai/subprocessors. We last opened that link on 6 October 2026.

Which legal entity does Sierra Technologies contract through?

Sierra Technologies, Inc., registered in United States. That is the name to put in a record of processing or a sub-processor list, not the brand.

What covers a transfer of personal data to Sierra Technologies outside the EEA?

EU-US Data Privacy Framework (DPF). A US certification scheme covered by an EU adequacy decision. Transfers to a certified US organisation need no further mechanism for the certified scope. Whether that is enough for a particular processing operation is a judgement for the controller.

Where is Sierra Technologies's trust center?

Sierra Technologies publishes it at https://trust.sierra.ai/. A trust center, trust page or security page is the same thing under different names: the vendor's own account of how it protects data, and the place it keeps its certifications. It is Sierra Technologies's page, so we link to it rather than repeat what it says.

What has changed, and when

Changes we noticed on Sierra Technologies's own pages, each with the page we saw it on. The vendor does not publish this, and neither does anyone else.

5 October 2026

We recorded changes to the transfer mechanism, the UK transfer mechanism.

5 October 2026

We recorded a change to the trust or security page.

Sierra Technologies: DPA, subprocessors and transfers

What to put in your subprocessor list

Questions people ask about Sierra Technologies

What has changed, and when

Building your own sub-processor list?

Where to go next

Other ai providers

Sierra Technologies: DPA, subprocessors and transfers

What to put in your subprocessor list

Questions people ask about Sierra Technologies

What has changed, and when

Building your own sub-processor list?

Where to go next

Other ai providers