# TierZero

TierZero (tierzero.ai): subprocessors, data processing agreement, security documents and changes, as monitored by Third Party Index.

- Page: https://thirdpartyindex.com/vendors/tierzero
- Documents last verified: 2026-10-01
- Transparency rating: 72/100 (how much it publishes, not how secure it is)
- Cite as: TierZero, Third Party Index, https://thirdpartyindex.com/vendors/tierzero (data CC BY 4.0)

## Documents

| Document | URL | Last verified | Last changed |
|---|---|---|---|
| Trust center | https://trust.tierzero.ai/ | 2026-10-01 | 2026-10-01 |
| Subprocessor list | https://www.tierzero.ai/legal/subprocessors/ | 2026-10-01 | 2026-10-01 |
| Privacy policy | https://www.tierzero.ai/legal/privacy-policy/ | 2026-10-01 | 2026-10-01 |
| Terms | https://www.tierzero.ai/legal/terms-of-service/ | 2026-10-01 | 2026-10-01 |
| Security page | https://www.tierzero.ai/security/ | 2026-10-01 | 2026-10-01 |

## Subprocessors (14)

As its own list states them.

| Subprocessor | Purpose | Location | Listed since |
|---|---|---|---|
| [Amazon Bedrock](https://thirdpartyindex.com/vendors/amazon-web-services.md) | AI Language Model Services | USA | 2026-10-01 |
| [Amazon Web Services](https://thirdpartyindex.com/vendors/amazon-web-services.md) | Cloud Hosting Provider | USA | 2026-10-01 |
| [Amplitude](https://thirdpartyindex.com/vendors/amplitude.md) | Analytics | USA | 2026-10-01 |
| [Anthropic](https://thirdpartyindex.com/vendors/anthropic.md) | AI Language Model Services | USA | 2026-10-01 |
| [Databricks](https://thirdpartyindex.com/vendors/databricks.md) | AI Language Model Hosting and Analytics | USA | 2026-10-01 |
| [Datadog](https://thirdpartyindex.com/vendors/datadog.md) | Application Monitoring and Analytics | USA | 2026-10-01 |
| [E2B](https://thirdpartyindex.com/vendors/e2b.md) | Sandbox Infrastructure | USA | 2026-10-01 |
| [Google (Vertex AI)](https://thirdpartyindex.com/vendors/google-cloud.md) | AI Language Model Services | USA | 2026-10-01 |
| [LangChain](https://thirdpartyindex.com/vendors/langchain.md) | AI Application Development Platform | USA | 2026-10-01 |
| [Modal](https://thirdpartyindex.com/vendors/modal.md) | Sandbox Infrastructure | USA | 2026-10-01 |
| [OpenAI](https://thirdpartyindex.com/vendors/openai.md) | AI Language Model Services | USA | 2026-10-01 |
| [PropelAuth](https://thirdpartyindex.com/vendors/propelauth.md) | Authentication and Authorization | USA | 2026-10-01 |
| [Sentry](https://thirdpartyindex.com/vendors/sentry.md) | Error Tracking and Performance Monitoring | USA | 2026-10-01 |
| [Slack](https://thirdpartyindex.com/vendors/slack.md) | Support Services | USA | 2026-10-01 |

Read from ([evidence](https://thirdpartyindex.com/evidence/26060)). CSV: https://thirdpartyindex.com/vendors/tierzero/subprocessors.csv

## Listed as a subprocessor by (0)

No tracked vendor lists it.

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Third Party Index (https://thirdpartyindex.com) monitors vendors' public security and privacy documents and keeps each version as evidence. Data CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/); vendors' own documents are theirs. API: https://thirdpartyindex.com/api