82,134 companies use Mailchimp, as of October 2026.
Mailchimp: Email marketing. We've found 82,134 companies using Mailchimp, most often in Retail (15%) and Software (11%), typically with 11–50 employees and 31% based in United States.
Customers82,134companies use it
Most popular withHolding Company Activities7.9× more likely than average
Typical customer11–50employees · mostly United States
We've found 82,134 companies using Mailchimp among the 480,288 we've scanned so far. We only count a company when a direct public record backs it up.
What kind of companies use Mailchimp?
Mailchimp customers are most often in Retail (15%), Software (11%) and Financial Services (11%). The most common company size is 11–50 employees (38% of customers with a known size).
Which countries use Mailchimp the most?
Most Mailchimp customers we've found are in United States (31%), United Kingdom (12%) and Australia (6%).
What are the alternatives to Mailchimp?
The most used alternatives in the same category are Brevo (73,062 companies), Klaviyo (27,858 companies), Pardot (18,397 companies) and Ahrefs (15,568 companies).
How does runsonwhat know a company uses Mailchimp?
We read public traces only. For Mailchimp that means the company's email records (SPF, MX, DKIM), a subdomain that points at Mailchimp, code loaded on the company's website, including tag managers and the company's published subprocessor list. Every match keeps the record it came from.
