Legal
List of Subprocessors
Revised December 2025
Below is a list of subprocessors we work with and the purpose for why we use their services.
Customer.io Infrastructure Subprocessors
Subprocessor | Purpose | Location | More info |
|---|---|---|---|
Amazon Web Services | Cloud Hosting | USA, EU | |
Google Cloud Platform | Cloud Hosting, Analytics, AI | USA, EU | |
Snowflake | Data Warehousing, Analytics | USA, EU |
Customer.io Platform Subprocessors
Subprocessor | Purpose | Location | More info |
|---|---|---|---|
Mailgun | Customer Communications | USA, EU | |
Twilio | Customer Communications* | USA |
*This platform subprocessor is only applicable to customers who have contracted for SMS services.
For more information or to subscribe to notifications of updates, please email gdpr@customer.io.
If you would like to read about our data handling practices you can find more information in our Privacy Policy.