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Tessian protects every business’s mission by securing the human layer. Using machine learning technology, Tessian automatically predicts and eliminates advanced threats on email caused by human error – like data exfiltration, accidental data loss, business email compromise and phishing attacks – with minimal disruption to employees’ workflow. As a result, employees are empowered to do their best work, without security getting in their way. Founded in 2013, Tessian is backed by renowned investors like Sequoia, Accel and Balderton and has offices in San Francisco and London.

Products & Services

Email security solution.
  • Tessian Defender - Prevent email threats that legacy email controls can't detect
  • Tessian Guardian - Prevent accidental data loss caused by human error on email
  • Tessian Enforcer - Automatically prevent data exfiltration over email
  • Tessian HLS Intelligence - Insights, automated threat intelligence, and tools for rapid investigation and remediation of threats prevented by Tessian's Human Layer Security Platform.
Lower the risk of misdirected emails, data exfiltration, and impersonation attacks.

Industries Served

Multiple industries, but the most useful for industries that handle sensitive information.
  • Financial Services
  • Legal
  • Healthcare
  • Tech

Clients Include

  • Dentons
  • Evercore
  • ARM
  • Man Group PLC
  • RightMove
  • Schroders
  • K&L Gates
  • BDO
Tessian | Quartz | Quartz Events

Quartz Events is the fastest growing producer of invitation-only, executive summits in North America. We help leaders get things done.