As of May 2026, there are 63 SaaS companies in Email Security Software. They have combined revenues of $1B and employ 7.7K people. They have raised $1.5B and serve 7.1M customers combined.
Email Security Software is designed to protect organizations from a range of email-based threats, including phishing, spam, malware, and data breaches. These solutions provide essential features such as email filtering, encryption, threat intelligence, and security analytics to ensure the integrity and confidentiality of communications. The primary use cases include safeguarding sensitive data, ensuring compliance with regulations, and preserving reputational integrity by preventing unauthorized access to email systems. Typically, buyers of email security software include IT professionals, security teams, and compliance officers who seek to bolster their organization's defenses against evolving cyber threats. These tools are utilized across various industries and are vital for any entity reliant on email for business communication. Common workflows involve automated threat detection and response, real-time reporting, and user training to reduce potential risks associated with human error.
Sorting: Highest -> Lowest
Showing 10 of 5 companies ranked by annual revenue.
San Francisco, California, United States
Paubox is the easiest way to send and receive HIPAA compliant email. No software to download, no portals to login to, just write and send emails as normal from any device
Toronto, Ontario, Canada
Echoworx protects the privacy of people and businesses throughout the world by making email data protection easier. Our scalable, easy to use, and configurable cloud security and email encryption solutions, have been adopted by the top and best in the business across more than 30 countries. Our next level email encryption protection is offered as a completely turn-key, cloud-based managed service, with a passionate hands-on expert staff to help transform communication chaos into order for organizations who understand — it pays to be secure.
Denver, Colorado, United States
Valimail is a pioneering, identity-based, anti-phishing company that has been ensuring the global trustworthiness of digital communications since 2015. Valimail delivers the only complete, cloud-native platform for validating and authenticating sender identity to stop phishing, protect and amplify brands, and ensure compliance. Valimail has won more than a dozen prestigious cybersecurity technology awards and authenticates billions of messages a month for some of the world's biggest companies and organizations, including Uber, Fannie Mae, WeWork, and the U.S. Agency for International Development.
Montgomery, Alabama, United States
Assists businesses in IT support, including email, collaboration, network design and support, server management, compliance and security solutions
Helsinki, Southern Finland, Finland
Developer of cybersecurity platform intended to prevent cyber attacks. The company's cloud-based platform integrates Outlook and Gmail to feature automated threat prioritization, analysis, phishing training and simulate cyber attacks and rewards employees for reporting real attacks, enabling organizations to solve security issues and be safe from online malware and hackers in a simplified manner.
- Must provide automated email filtering to detect spam and phishing attempts - Should include features for email encryption to secure sensitive communications - Must offer threat intelligence capabilities to identify and mitigate emerging risks - Should support integration with existing email platforms and IT security tools - Must include reporting and analytics features for monitoring email security incidents - Not just focused on filtering; must also provide comprehensive threat response solutions - Should cater to various business sizes, from small businesses to large enterprises
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