The use case: how One Horizon deploys Customer.io
One Horizon captures leads at tech events via a QR code to a name-and-email form, which feeds into Customer.io as new leads. A triggered workflow enriches each lead, sends a welcome email and timed reminders for non-signups, and posts a Slack notification to the team.
In the customer’s words
Customer.io gives us leverage. Two founders can run follow-up at the scale of a full growth team.Other companies using Customer.io
Customers across industries, with public evidence.
BufferConfirmed
Cosentino's Food GroupConfirmed
Georgia AquariumConfirmed
GuestReadyConfirmed
Kinnect.ClubConfirmed
KlarConfirmedGo straight to the source
Based on Customer.io’s published case study. We check the public evidence; the results are reported by the vendor.
customer.io- Source published
- Mar 17, 2026
- Last checked
- Nov 12, 2026
Open source capture What the story claims, and what we checked
What we compared with the page.
- The passage quoted aboveChecked
Copied word for word from the page, near the name of One Horizon.
- The publication dateChecked
Read from the page’s own metadata, never guessed.
- One Horizon uses Customer.ioChecked
Confirmed line.
- The result itselfNot checked
We quote it; we did not measure it.
The workflow sends an immediate welcome email, then a second reminder email 4 days after the event if the lead has not set user_signed_in to true. If there is still no signup after another week, a final, more urgent reminder is sent.