Customer.io
Customer.io is a marketing automation platform that helps mid-market companies send targeted, behavior-triggered messages across email, push notifications, and in-app channels using first-party customer data.
Est. Valuation
$350M
$349,999,980 · 5× ARR estimate
Monthly Revenue (MRR)
$5.8M
$5,833,333/mo
Annual Revenue (ARR)
$70M
$69,999,996/yr
Employees
250
Founded
2012
Customer.io Revenue History
Revenue history for Customer.io from 2024 to 2026.
| Year | MRR | ARR | YoY Growth | Source |
|---|---|---|---|---|
| 2024 | $5,833,333 | $70,000,000 | — | Oct 2024 |
How Customer.io Makes Money
Customer.io Funding
Customer.io is fully bootstrapped with no outside funding. The company has grown to $69,999,996 ARR organically.
Customer.io Founders
Colin Nederkoorn
Co-founder
John
Co-founder
Customer.io FAQ
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How We Estimate Customer.io's Revenue & Valuation
Profitable tracks revenue, valuation, and other key metrics for thousands of companies using a layered confidence model. Each revenue figure on this page is tagged with one of three confidence levels:
- Verified — directly confirmed via Stripe integration or audited filings.
- Self-reported — numbers publicly shared by the founder on X, blog posts, or interviews.
- Estimated — derived from publicly available signals (traffic, employee count, pricing, comparables).
Valuation follows a hierarchy: public companies use the live market cap; private companies with disclosed funding rounds use the last reported valuation; otherwise we apply a conservative 5× ARR multiple as an estimate. Multiples vary by business model — SaaS typically sits 5–7×, profitable bootstrapped operations 3–5×, consumer brands 1–3×, marketplaces 8–12×.
These are estimates, not official figures. Official numbers — when available — will always override estimates.