Customer.io
On 6 vendors' sub-processor lists.
Communicationscustomer.io website (opens in new tab)
Automated extraction, not yet hand-checked. Each row records what a vendor's own sub-processor page said at the capture date shown — follow the vendor link for the entry in context.
// listed by (6)
| Vendor | Named as | Purpose | First seen |
|---|---|---|---|
| Axiom | Customer.io | Transactional, broadcast, and marketing messaging | |
| Fly.io | Customer.io | Newsletters and transactional email | |
| Metabase | Customer.io | Email communications. | |
| Mixmax | Customer.io | Customer Messaging | |
| Notion | Customer.io | Transactional, broadcast, and marketing messaging | |
| Plain | Customer.io | Marketing |
"First seen" is the earliest capture in our records that names Customer.io on that vendor's list — not necessarily when the relationship began.