315 companies use iCloud Mail, as of October 2026.
iCloud Mail: Custom-domain email on iCloud+. We've found 315 companies using iCloud Mail, most often in IT Services (18%) and Software (10%), typically with 51–200 employees and 36% based in United States.
Customers315companies use it
Most popular withInternet2.3× more likely than average
Typical customer51–200employees · mostly United States
We've found 315 companies using iCloud Mail among the 187,045 we've scanned so far. We only count a company when a direct public record backs it up.
What kind of companies use iCloud Mail?
iCloud Mail customers are most often in IT Services (18%), Software (10%) and Internet (8%). The most common company size is 51–200 employees (40% of customers with a known size).
Which countries use iCloud Mail the most?
Most iCloud Mail customers we've found are in United States (36%), India (9%) and Brazil (8%).
What are the alternatives to iCloud Mail?
The most used alternatives in the same category are Microsoft 365 (230,092 companies), Google Workspace (115,461 companies), Apple Business (48,229 companies) and Exclaimer (10,985 companies).
How does runsonwhat know a company uses iCloud Mail?
We read public traces only. For iCloud Mail that means a domain-verification record in the company's DNS, the company's email records (SPF, MX, DKIM), a subdomain that points at iCloud Mail and the company's published subprocessor list. Every match keeps the record it came from.