Top 16 Secure Email Gateway Software SaaS Companies in May 2026

As of May 2026, there are 16 SaaS companies in Secure Email Gateway Software. They have combined revenues of $128.3M and employ 821 people. They have raised $107.9M and serve 5.7K customers combined.

Secure Email Gateway Software provides organizations with a robust solution to protect their email communications from threats such as phishing, malware, and spam. This software serves as a barrier between their email systems and the external internet, ensuring that only legitimate and safe emails reach the inboxes of users. Key features typically include threat detection, spam filtering, malware filtering, and content policy enforcement, all aimed at mitigating the risk of email-based attacks. The primary use case for Secure Email Gateway Software is to enhance email security for enterprises that heavily rely on email for communication and transactions. It is crucial for roles in IT security, compliance, and risk management to safeguard sensitive information and maintain regulatory compliance. By deploying this software, organizations can facilitate secure collaboration while protecting against data breaches and business email compromise.