Case Study: One Horizon achieves faster event follow-up and higher signup conversion with Customer.io

One Horizon x Customer.io Hacking lead capture at tech events

One Horizon needed a faster way to capture and sustain interest from engineering decision-makers at events, where conversations are brief and manual follow-up often gets lost. Using Customer.io, the company built a low-friction lead capture flow that collected just name and email, then triggered event follow-up automation to keep prospects engaged without slowing the team down.

Customer.io powered a workflow that enriched leads, sent immediate and timed reminder emails, and posted real-time Slack alerts to help prioritize outreach. The result was less manual post-event work, better lead prioritization, and higher event-to-signup conversion rates than One Horizon’s previous manual process, allowing two founders to handle follow-up at the scale of a larger growth team.

One Horizon

Gijs van de Nieuwegiessen

Co-Founder