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Tessian competitors & alternatives
The 12 closest competitors and alternatives to Tessian among cybersecurity companies — ranked by similarity to what Tessian actually does, not by market-cap band.
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About Tessian
Tessian, now part of Proofpoint, provides AI-powered email security and data loss prevention solutions designed to protect organizations against advanced phishing threats, email fraud, and human error. Its platform helps enterprise customers secure human communication, manage insider threats, and prevent accidental data exfiltration across cloud and email environments.
Tessian at a glance
Tessian is a cybersecurity company headquartered in United Kingdom, founded in 2013. Xcout recorded 1 job posting from Tessian in the last 90 days.
Hiring at Tessian
Xcout recorded 1 job posting from Tessian in the last 90 days, from a hiring record Xcout has kept since June 2026.
The weekly hiring trend, the roles and locations behind it — see Tessian's hiring signals →
Top 12 Tessian competitors
Ranked by semantic similarity — how close each company is to Tessian by what it does, using Xcout's live company graph. Click any company for its full profile, or its competitor set.
Similar cybersecurity company
Egress is a cloud email security platform provider that uses adaptive security models and contextual machine learning to defend against phishing and data loss.
Similar cybersecurity company
Proofpoint, Inc. is an American enterprise cybersecurity company based in Sunnyvale, California that provides software as a service and products for email security, identity threat defense, data loss prevention, electronic discovery, and email archiving.
Similar cybersecurity company
Mimecast provides a unified cybersecurity platform focused on human risk management, advanced email security, data protection, and compliance solutions. The company serves over 42,000 organizations globally by protecting employees, critical data, and AI tools against sophisticated digital threats.
Similar cybersecurity company
Armorblox was a U.S. cybersecurity company that used natural-language understanding and machine learning to detect and prevent email-based threats such as phishing, business email compromise, and data loss. It served enterprises and was acquired by Cisco in 2023.
Similar cybersecurity company
AppRiver is a cybersecurity and cloud services provider that offers email security, threat protection, and data backup solutions as part of OpenText Cybersecurity.
Email & Cybersecurity Services
Enterprise Guardian provides fully managed HIPAA-compliant email hosting, encryption, and data security services for healthcare businesses.
Similar cybersecurity company
Virtru provides a data security platform that delivers end-to-end encryption and access control for email, files, and applications. The company serves enterprise and government sectors, enabling organizations to maintain data sovereignty, governance, and secure sharing capabilities.
Cybersecurity & Compliance
Paubox provides HIPAA compliant email encryption, security, and marketing solutions for healthcare and other industries.
Cybersecurity & Software
Hushmail provides encrypted email and e-signable secure forms designed for healthcare, legal, and small business professionals.
Similar cybersecurity company
Zivver is an Amsterdam-born information technology and services company specializing in secure business email solutions. It provides an email security solution that is adaptable to various organizations, email clients, and security policies, focusing on ease of use and deployment.
Similar cybersecurity company
Perception Point is an Israeli cybersecurity company that provides automated threat prevention for email, cloud collaboration, and communication platforms. Its services protect organizations using platforms such as Microsoft 365, Google Workspace, Slack, and Microsoft Teams against phishing, malware, business email compromise, and other advanced threats.
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