2,400 companies use Constant Contact, as of October 2026.
Constant Contact: Email marketing. We've found 2,400 companies using Constant Contact, most often in Healthcare (13%) and IT Services (10%), typically with 51–200 employees and 78% based in United States.
Customers2,400companies use it
Most popular withNon-profit Organization Management4.9× more likely than average
Typical customer51–200employees · mostly United States
We've found 2,400 companies using Constant Contact among the 180,096 we've scanned so far. We only count a company when a direct public record backs it up.
What kind of companies use Constant Contact?
Constant Contact customers are most often in Healthcare (13%), IT Services (10%) and Financial Services (8%). The most common company size is 51–200 employees (52% of customers with a known size).
Which countries use Constant Contact the most?
Most Constant Contact customers we've found are in United States (78%), Canada (5%) and United Kingdom (3%).
What are the alternatives to Constant Contact?
The most used alternatives in the same category are Mailchimp (21,889 companies), Brevo (19,363 companies), Pardot (9,719 companies) and Klaviyo (7,215 companies).
How does runsonwhat know a company uses Constant Contact?
We read public traces only. For Constant Contact that means the company's email records (SPF, MX, DKIM), a subdomain that points at Constant Contact, 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.