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Tessian Employee Directory

Computer and Network SecurityMassachusetts, United States11-50 Employees

Tessian offers a cloud-based email security platform that protects organizations from advanced email threats and data loss, while providing real-time guidance to users on security risks. It uses machine learning and behavioral data analysis to identify and stop threats that bypass traditional Secure Email Gateways, including phishing, business email compromise, accidental data exposure, and insider risk.

Based in Boston, Massachusetts, Tessian operates in the computer and network security field and traces its origins to 2013. It has been recognized as one of Fast Company's Most Innovative Companies for 2022. Tessian was acquired by Proofpoint, with the acquisition completed in 2023, integrating its capabilities into Proofpoint's cybersecurity offerings.

Find Tessian employees' phone numbers or email addresses

Tessian Global Highlights

Location
Employees

Europe
70

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  • United Kingdom Of Great Britain And Northern Ireland
    66
  • France
    1
  • Poland
    1
  • Serbia
    1
  • Netherlands
    1

North America
40

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  • United States Of America
    39
  • Mexico
    1

Asia
7

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  • India
    3
  • Turkey
    2
  • Uzbekistan
    1
  • Israel
    1

Africa
1

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  • Morocco
    1

Tessian's Leadership

  • Chief Product Officer at Tessian
    A. L.
    Chief Product Officer
    Mobile Phone
  • Head Of Marketing & Communications at Tessian
    K. H.
    Head Of Marketing & Communications
    Mobile Phone
  • Head Of Communications & Content at Tessian
    L. B.
    Head Of Communications & Content
    Mobile Phone
  • Head Of Sales, Emea at Tessian
    M. P.
    Head Of Sales, Emea
    Mobile Phone
  • Head Of Global Talent Acquisition at Tessian
    M. L.
    Head Of Global Talent Acquisition
    Mobile Phone
  • Head Of Inside Sales at Tessian
    S. H.
    Head Of Inside Sales
    Mobile Phone
  • Co-Founder - Head Of Client-Side Engineering at Tessian
    T. A.
    Co-Founder - Head Of Client-Side Engineering
    Mobile Phone
  • Talent Partner at Tessian
    A. M.
    Talent Partner
    Mobile Phone

Tessian Employee Metrics

100%
50%
0%
2026
2025
  • Engineering
  • Sales
  • Operations
  • Analytics
  • Customer Success
  • Other
  • Marketing
  • Arts & Design
  • Education
  • Entrepreneurship
  • Information Security
  • Program & Project Management

Contact profiles from Tessian

Name
Title
Contact
Location
Last Update
  • Co-Founder - Head Of Client-Side Engineering at Tessian
    T. A.
    Co-Founder - Head Of Client-Side Engineering
    Mobile Phone
    United Kingdom, England
    Aug 23, 2026
  • Chief Product Officer at Tessian
    A. L.
    Chief Product Officer
    Mobile Phone
    Feb 06, 2024
  • Talent Partner at Tessian
    A. M.
    Talent Partner
    Mobile Phone
    United Kingdom, Greater London
    Jan 30, 2024
  • Talent Partner at Tessian
    N. P.
    Talent Partner
    Mobile Phone
    UNITED KINGDOM, London
    Oct 31, 2023
  • Head Of Marketing & Communications at Tessian
    K. H.
    Head Of Marketing & Communications
    Mobile Phone
    UNITED KINGDOM, London
    May 25, 2023
  • Head Of Communications & Content at Tessian
    L. B.
    Head Of Communications & Content
    Mobile Phone
    United Kingdom
    Apr 11, 2023
  • Head Of Sales, Emea at Tessian
    M. P.
    Head Of Sales, Emea
    Mobile Phone
    United Kingdom
    Aug 23, 2026
  • Head Of Global Talent Acquisition at Tessian
    M. L.
    Head Of Global Talent Acquisition
    Mobile Phone
    Aug 23, 2026
  • Head Of Inside Sales at Tessian
    S. H.
    Head Of Inside Sales
    Mobile Phone
    United Kingdom
    Jul 07, 2024
  • Director It Operations - Infosec ( Acquired By Proofpoint) at Tessian
    S. N.
    Director It Operations - Infosec ( Acquired By Proofpoint)
    Mobile Phone
    United Kingdom
    Sep 04, 2026

Frequently Asked Questions

What is Tessian known for?

Minus sign iconPlus sign iconTessian was founded in 2013 and operates in the Computer and Network Security industry. You can contact Tessian's main corporate office by phone at
+44-7186-18****
. Explore Tessian's company overview page for more information.

What is Tessian's most common email format?

Minus sign iconPlus sign iconTessian employees' email format typically follows the pattern of First.Last@tessian.com. Trying to find reliable and up-to-date employee contact data? Find more Tessian email formats with LeadIQ.

How many employees does Tessian have currently?

Minus sign iconPlus sign iconTessian has approximately 41 employees as of August 2026. These team members are located across 4 continents, including Europe, North America and Asia.

Who are Tessian's key employees and leadership?

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As of August 2026, Tessian's key employees include:

  • Chief Product Officer: A. L.
  • Head Of Marketing & Communications: K. H.
  • Head Of Communications & Content: L. B.
  • Head Of Sales, Emea: M. P.
  • Head Of Global Talent Acquisition: M. L.

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