Customer.io
Customer.io is an automated messaging platform for marketers.
Get all 558 companies using Customer.io
CSV with domain, country, industry, employees, funding, socials. Delivered by email.
Companies
558
Top Country
US
Top Industry
Artificial Intelligence (AI)
Adoption Insights
Customer.io is used by 558 companies in our database, representing approximately 0.02% of all tracked websites. The most common industry using Customer.io is Artificial Intelligence (AI), and adoption is strongest in US.
Top Countries Using Customer.io
Top Industries Using Customer.io
Companies Using Customer.io
| Company | Domain | Country | Industry | Employees |
|---|---|---|---|---|
 Apollo.io | apollo.io | US | Artificial Intelligence (AI) | 501-1000 |
 Moniepoint | moniepoint.com | GB | Banking | 1001-5000 |
 Mapbox | mapbox.com | US | Business Intelligence | 501-1000 |
 Flutterwave | flutterwave.com | US | Financial Services | 251-500 |
 Hex Technologies | hex.tech | US | Analytics | 101-250 |
 OpenFX | openfx.com | US | Embedded Software | 11-50 |
 Fracttal | fracttal.com | ES | Intellectual Property | 101-250 |
 CodeRabbit | coderabbit.ai | US | Artificial Intelligence (AI) | 101-250 |
 Float Financial | floatfinancial.com | CA | Accounting | 101-250 |
 Oula Health | oulahealth.com | US | Health Care | 101-250 |
Top Alternatives to Customer.io
Other Marketing automation technologies sorted by adoption
How We Detect Customer.io
The Web Radar detects Customer.io by analyzing HTTP headers, JavaScript variables, HTML source code, cookies, and DNS records across 3M+ websites. Our detection engine uses over 10,000+ pattern rules to ensure accurate identification. Browse all technologies →
Frequently Asked Questions
What is Customer.io?+
Customer.io is an automated messaging platform for marketers.
How many companies use Customer.io?+
558 companies in our database use Customer.io, representing approximately 0.02% of all tracked websites.
What industries use Customer.io the most?+
The top industries using Customer.io are Artificial Intelligence (AI), Advertising, Apps.
What countries use Customer.io the most?+
The top countries using Customer.io are US, CA, GB.
Is Customer.io popular?+
Customer.io is used by 558 companies, making it a notable Marketing automation technology based on adoption across our tracked websites.
Need this data at scale?
Get ready-to-use datasets: companies, technologies, and tech adoption signals across 3M+ websites.
Browse DatasetsData last updated: June 2026