# Annex 3: List of Holistics sub-processors > Learn more about Holistics Sub-Processors here :::info Notes This is a part of our [Data Processing Agreement (DPA)](/legal/dpa). ::: **Last updated**: 12 June 2026 "Sub-Processors for Customer Database" refers to the service providers that are used by Holistics as described in the DPA ([https://docs.holistics.io/legal/dpa](https://docs.holistics.io/legal/dpa)). ### Infrastructure and Hosting Sub-processors These sub-processors host or process data from the Customer's connected database. | Sub-processor | Entity Country | Location of Servers | Purpose | | --- | --- | --- | --- | | Amazon Web Services, Inc. | USA | USA, Germany, Singapore | Amazon S3, RDS and/or other AWS services | | DigitalOcean, Inc. | USA | USA, Germany, Singapore | Infrastructure hosting | | Mailgun, Inc. (Sinch) | USA | USA, EU | Transactional emails, scheduled email reports, and data alerts | ### Service-Specific Sub-processors These sub-processors process data to provide specific features within the Services. | Sub-processor | Entity Country | Purpose | | --- | --- | --- | | Slack Technologies, LLC | USA | Sending Slack messages and notifications from Holistics | | Google, Inc. | USA | Google Workspace (Google Sheets sync) | | Cloudflare, Inc. | USA | Content delivery, network performance optimization, security, abuse prevention, and DNS | | OpenAI, Inc. | USA | LLM provider for AI-powered features | ### Analytics and Data Warehouse Sub-processors These sub-processors process Holistics metadata and usage data for internal analytics. They do not process the content of the Customer's connected database. | Sub-processor | Entity Country | Purpose | | --- | --- | --- | | Google, Inc. | USA | Google Cloud Platform (GCP), BigQuery | | Anthropic, PBC | USA | LLM provider for data analytics | %%SIGNATORY%%