Customer.io

Updated Jul 12, 2026
2%
arrow_downward0% YoY
#5

Summary

  • Customer.io ranks #5 within the Email Marketing category, maintaining its position month-over-month.
  • As of July 2026, 2% of organizations who have a vendor in the Email Marketing category use Customer.io: down < 1 percentage points from last year.
  • Customer.io has the highest adoption among enterprise companies (3%), compared to mid-market (2%), small-to-medium businesses (2%), and micro-SMB (2%).
  • Customer.io key capabilities include behavioral trigger automation, multi-channel messaging, and real-time segmentation, supporting personalized lifecycle marketing for SaaS and ecommerce businesses.

Are businesses buying Customer.io?

Key stats

2%
arrow_downward0% YoY
Mid-Market, 43%
1%
3%
#5
#5

Adoption Rates by company size

Company sizeAdoption rate
SMB2%
Mid-market2%
Enterprise3%

About Customer.io

Customer.io is an AI-powered customer engagement platform that enables data-driven messaging automation across email, SMS, push, and in-app channels. It helps teams personalize customer journeys using first-party data and event-based triggers.

About this data

These insights come from Ramp’s procurement and renewal data, built on real-world transactions observed across our platform. Figures represent aggregated observations from Ramp Procurement and Renewals activity.

DateNew adopter shareCompetitor switch rateDominant FTE segmentAdoption rate (Enterprise)Adoption rate (Mid-Market)Adoption rate (SMB)
Jun 20261%3%Mid-Market, 43%3%2%2%
May 20261%3%Mid-Market, 42%3%2%2%
Apr 20261%3%Mid-Market, 41%3%2%2%
Mar 20261%3%Mid-Market, 41%3%2%2%
Feb 20261%3%Mid-Market, 42%3%2%2%
Jan 20260%3%Mid-Market, 43%3%2%2%
Dec 20250%3%Mid-Market, 44%3%2%2%
Nov 20251%3%Mid-Market, 45%3%2%2%
Oct 20251%3%Mid-Market, 50%3%2%2%
Sep 20250%3%Mid-Market, 49%2%2%2%
Aug 20251%3%Mid-Market, 49%2%2%2%
Jul 20251%3%Mid-Market, 48%2%2%2%
Jun 20251%3%Mid-Market, 46%2%2%2%
May 20251%3%Mid-Market, 47%2%2%2%
Apr 20250%3%Mid-Market, 47%2%2%2%
Mar 20250%2%Mid-Market, 45%2%2%2%
Feb 20251%3%Mid-Market, 45%3%2%2%
Jan 20251%3%Mid-Market, 45%3%3%2%
Dec 20241%3%Mid-Market, 45%3%3%3%
Nov 20241%3%Mid-Market, 44%3%3%3%
Oct 20240%3%Mid-Market, 44%3%3%3%
Sep 20242%3%Mid-Market, 44%4%3%3%
Aug 20241%4%Mid-Market, 47%4%3%3%
Jul 20241%4%Mid-Market, 47%3%3%3%

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