2%
0% YoY
#5
Summary
- Customer.io ranks #5 within the Email Marketing category, maintaining its position month-over-month.
- As of September 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 an adoption rate of 2% across all FTE segments (micro-SMB, small-to-medium businesses, mid-market, and enterprise).
- 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%
0% YoY
Mid-Market, 44%
1%
3%
#5
#5
Adoption Rates by company size
| Company size | Adoption rate |
|---|---|
| SMB | 2% |
| Mid-market | 2% |
| Enterprise | 2% |
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.
| Date | New adopter share | Competitor switch rate | Dominant FTE segment | Adoption rate (Enterprise) | Adoption rate (Mid-Market) | Adoption rate (SMB) |
|---|---|---|---|---|---|---|
| Aug 2026 | 1% | 3% | Mid-Market, 44% | 2% | 2% | 2% |
| Jul 2026 | 0% | 3% | Mid-Market, 44% | 2% | 2% | 2% |
| Jun 2026 | 1% | 3% | Mid-Market, 44% | 3% | 2% | 2% |
| May 2026 | 1% | 3% | Mid-Market, 43% | 3% | 2% | 2% |
| Apr 2026 | 1% | 3% | Mid-Market, 42% | 3% | 2% | 2% |
| Mar 2026 | 1% | 3% | Mid-Market, 42% | 3% | 2% | 2% |
| Feb 2026 | 1% | 3% | Mid-Market, 43% | 3% | 2% | 2% |
| Jan 2026 | 0% | 3% | Mid-Market, 43% | 3% | 2% | 2% |
| Dec 2025 | 0% | 3% | Mid-Market, 45% | 3% | 2% | 2% |
| Nov 2025 | 1% | 3% | Mid-Market, 46% | 3% | 2% | 2% |
| Oct 2025 | 1% | 3% | Mid-Market, 50% | 3% | 2% | 2% |
| Sep 2025 | 0% | 3% | Mid-Market, 50% | 2% | 2% | 2% |
| Aug 2025 | 1% | 3% | Mid-Market, 49% | 2% | 2% | 2% |
| Jul 2025 | 1% | 3% | Mid-Market, 49% | 2% | 2% | 2% |
| Jun 2025 | 1% | 3% | Mid-Market, 47% | 2% | 2% | 2% |
| May 2025 | 1% | 2% | Mid-Market, 47% | 2% | 2% | 2% |
| Apr 2025 | 0% | 2% | Mid-Market, 48% | 2% | 2% | 2% |
| Mar 2025 | 0% | 2% | Mid-Market, 46% | 2% | 2% | 2% |
| Feb 2025 | 1% | 3% | Mid-Market, 46% | 3% | 2% | 2% |
| Jan 2025 | 0% | 3% | Mid-Market, 46% | 3% | 3% | 2% |
| Dec 2024 | 1% | 3% | Mid-Market, 46% | 3% | 3% | 3% |
| Nov 2024 | 1% | 3% | Mid-Market, 45% | 3% | 3% | 3% |
| Oct 2024 | 0% | 3% | Mid-Market, 45% | 3% | 3% | 3% |
| Sep 2024 | 2% | 2% | Mid-Market, 45% | 3% | 3% | 3% |
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