3,960 companies use Hornetsecurity, as of October 2026.
Hornetsecurity: Email security and backup. We've found 3,960 companies using Hornetsecurity, most often in IT Services (18%) and Real Estate (8%), typically with 11–50 employees and 57% based in Germany.
Customers3,960companies use it
Most popular withCosmetic Shop56× more likely than average
We've found 3,960 companies using Hornetsecurity among the 310,937 we've scanned so far. We only count a company when a direct public record backs it up.
What kind of companies use Hornetsecurity?
Hornetsecurity customers are most often in IT Services (18%), Real Estate (8%) and Retail (7%). The most common company size is 11–50 employees (58% of customers with a known size).
Which countries use Hornetsecurity the most?
Most Hornetsecurity customers we've found are in Germany (57%), France (8%) and United Kingdom (7%).
What are the alternatives to Hornetsecurity?
The most used alternatives in the same category are reCAPTCHA (97,785 companies), Let's Encrypt (33,177 companies), GlobalSign (31,772 companies) and Proofpoint (29,097 companies).
How does runsonwhat know a company uses Hornetsecurity?
We read public traces only. For Hornetsecurity that means the company's email records (SPF, MX, DKIM) and the company's published subprocessor list. Every match keeps the record it came from.