19,342 companies use Proofpoint, as of October 2026.
Proofpoint: Email security gateway. We've found 19,342 companies using Proofpoint, most often in Healthcare (15%) and Financial Services (13%), typically with 51–200 employees and 61% based in United States.
Customers19,342companies use it
Most popular with10,000+ employees3.6× more likely than average
Typical customer51–200employees · mostly United States
We've found 19,342 companies using Proofpoint among the 177,594 we've scanned so far. We only count a company when a direct public record backs it up.
What kind of companies use Proofpoint?
Proofpoint customers are most often in Healthcare (15%), Financial Services (13%) and IT Services (10%). The most common company size is 51–200 employees (40% of customers with a known size).
Which countries use Proofpoint the most?
Most Proofpoint customers we've found are in United States (61%), United Kingdom (6%) and Canada (4%).
What are the alternatives to Proofpoint?
The most used alternatives in the same category are GlobalSign (23,898 companies), Let's Encrypt (20,314 companies), reCAPTCHA (16,938 companies) and DigiCert (14,492 companies).
How does runsonwhat know a company uses Proofpoint?
We read public traces only. For Proofpoint that means the company's email records (SPF, MX, DKIM), a subdomain that points at Proofpoint and the company's published subprocessor list. Every match keeps the record it came from.
SmartsheetCollaboration2.7×more likely
DynatraceMonitoring2.6×more likely
ImpervaSecurity & Compliance2.2×more likely
AkamaiCDN & Edge2.2×more likely
OneTrustSecurity & Compliance2.1×more likely
CSCDNS2.1×more likely
AdobeCollaboration2.0×more likely
DocuSignFinance & Legal2.0×more likely
JamfSecurity & Compliance1.9×more likely
WebexCollaboration1.9×more likely
MarketoMarketing1.6×more likely
MiroCollaboration1.5×more likely