Where does Customer.io advertise?
Newsletters where we found a Customer.io sponsor slot. No contact information.
| Newsletter | Date | Slot |
|---|---|---|
| Marketing Brew | secondary | |
| Marketing Brew | secondary |
Last checked: 2026-09-12
Newsletters where we found a Customer.io sponsor slot. No contact information.
| Newsletter | Date | Slot |
|---|---|---|
| Marketing Brew | secondary | |
| Marketing Brew | secondary |
Last checked: 2026-09-12