Customer.io

Marketing & Advertising9 vendorsUpdated Nov 10, 20263 added, 1 removed customer.io Subprocessor list

Customer.io uses 9 subprocessors and infrastructure vendors, including AWS, Google Cloud and OpenAI, based on its public subprocessor list. Last checked Nov 10, 2026.

AI Stack · 3

Infrastructure · 6

AI Stack

Foundation Models

Anthropic

669 companies

AI model hosting and inference for optional AI-powered features

Google (Gemini)

196 companies

AI model hosting and inference for optional AI-powered features

OpenAI

823 companies

AI model inference for optional AI-powered features

View their stack →

Infrastructure

Cloud & Networking

Cloud Hosting

Cloud Hosting, Analytics, AI

Databases

Snowflake

341 companies

Data Warehousing, Analytics

Communications

Infobip

14 companies

Customer Communications*

Mailgun

207 companies

Customer Communications

Twilio

420 companies

Customer Communications*

Changes

Mar 12, 2026 to Nov 10, 2026Source

Added 3

Removed 1

Figma

Earlier lists

Mar 12, 20267 vendors

Similar companies

Companies with the most overlapping vendors