About
Customer.io is an AI-powered customer engagement platform that helps businesses create personalized journeys and deliver data-powered communication across email, push, in-app, and SMS. It enables companies to manage and personalize customer messages within a unified platform, leveraging first-party data to drive growth and strengthen customer interactions. The platform is trusted by over 9,000 brands worldwide to send data-powered communication and accelerate marketing performance.
Key facts
At-a-glance profile data
- Website
- customer.io
- Headquarters
- Beaverton, United States
- Founded
- 2012
- Employees
- 514
- Total funding
- $55M (Series A)
- Business model
- B2B
Funding rounds
| Date | Round | Amount | Lead investors |
|---|---|---|---|
| 8 Mar 2022 | Series A | $50M | Spectrum Equity |
| 10 Aug 2021 | Equity Crowdfunding | $5M | Republic |
| 17 May 2012 | Accelerator/Incubator | $20K | - |
Tech stack
Detected on customer.io, last scanned 24 Sept 2026. Run your own scan
- Compliance
- HIPAA, ISO 27001, GDPR, CCPA
- Frontend
- Next.js, Tailwind CSS
- Analytics
- Google Tag Manager
- CDN
- Vercel
- Email provider
- Google Workspace
- Email marketing
- Customer.io, Mailgun
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Frequently asked
How much funding has Customer.io raised?
Customer.io has raised a total of $55M in funding. The most recent round on record is Series A.
How many employees does Customer.io have?
Customer.io has approximately 514 people on record.

