Proofpoint closes acquisition of Tessian.

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Complete Cloud Email Security

We’re on a mission to secure the human layer in the modern workplace, by protecting all the digital interactions people need to do their jobs. We understand people’s behaviors on platforms like email to detect and prevent advanced threats, so that your people can focus on doing their best work in a secure, yet productive way.
Tessian’s Six Guiding Values

We believe people are the most important decision makers in any organization. We’re a group of data scientists, engineers, designers, creative thinkers, and commercial experts who are passionate about protecting people processing data in the enterprise.

Tessian Founders

The Exec Team

Where to find us

Tessian Boston

14 Beacon Street, Suite 701
Boston, MA 02108 United States
+1 (857) 400-9844

Tessian London

5 Churchill Place, 10th Floor
London, E14 5HU United Kingdom
+44 (20) 8611 1066

Want to join us on
our journey?

We're on a mission to empower people to do their best work, without security getting in their way.