Cloud email security
Its platform protects organizations against advanced threats and email data loss.
Source: LinkedIn company description · Retrieved October 21, 2026
Company profiletessian.com ↗
Tessian
Tessian provides cloud email security to protect organizations against advanced threats and email data loss, while coaching people about security threats in the moment.
- Headquarters
- Boston, Massachusetts, United StatesSource: RevenueBaseRetrieved October 21, 2026
- Employee range
- 201 to 500Source: RevenueBaseRetrieved October 21, 2026
- Founded
- 2013Source: RevenueBaseRetrieved October 21, 2026
What does Tessian do?
Tessian automatically stops threats that evade legacy Secure Email Gateways, including phishing attacks, business email compromise, accidental data loss and insider threats. Tessian coaches people about security threats in the moment.
Based on the company’s public LinkedIn information, supplied through RevenueBase.
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RevenueBase prepared this profile from the company’s public LinkedIn information and RevenueBase company data. These source records were retrieved on October 21, 2026. AI helped summarize these sources, with a separate automated check against the source text completed on October 21, 2026. Directory positions use company-contact counts from separately saved list snapshots. How the company lists are built.
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