Tessian

Tessian Employee Directory

Computer and Network SecurityUnited Kingdom201-500 Employees

Tessian was acquired by Proofpoint. View the press release: https://www.proofpoint.com/us/newsroom/press-releases/proofpoint-closes-acquisition-tessian.

To see what’s new, visit https://www.linkedin.com/company/proofpoint/.

Tessian is a leading cloud email security platform that intelligently protects organizations against advanced threats and data loss on email, while coaching people about security threats in-the-moment. Using machine learning and behavioral data science, Tessian automatically stops threats that evade legacy Secure Email Gateways, including advanced phishing attacks, business email compromise, accidental data loss and insider threats. Tessian’s intelligent approach not only strengthens email security but also builds smarter security cultures in the modern enterprise. 

Founded in 2013, Tessian is backed by legendary investors such as March Capital, Sequoia, Accel and Balderton, and has been recognized as one of Fast Company’s Most Innovative Companies for 2022.

Request a demo here: https://www.tessian.com/book-demo/

Find Tessian employees' phone numbers or email addresses

Tessian Global Highlights

Location
Employees

Europe
91

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  • United Kingdom Of Great Britain And Northern Ireland
    84
  • Poland
    3
  • Serbia
    1
  • Italy
    1
  • France
    1
  • Netherlands
    1

North America
30

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  • United States Of America
    29
  • Mexico
    1

Asia
7

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

Africa
1

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  • Morocco
    1

Tessian's Leadership

  • Stylized image of a person
    A. L.
    Chief Product Officer
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    K. H.
    Head Of Marketing & Communications
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  • Stylized image of a person
    L. B.
    Head Of Communications & Content
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    M. P.
    Head Of Sales, Emea
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  • Stylized image of a person
    M. L.
    Head Of Global Talent Acquisition
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  • Stylized image of a person
    S. H.
    Head Of Inside Sales
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  • Stylized image of a person
    T. A.
    Co-Founder - Head Of Client-Side Engineering
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  • Stylized image of a person
    A. M.
    Talent Partner
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Tessian Employee Metrics

100%
50%
0%
2025
2024
  • Engineering
  • Sales
  • Operations
  • Analytics
  • Customer Success
  • Other
  • Marketing
  • Arts & Design

Contact profiles from Tessian

Name
Title
Contact Info
Location
Last Update
  • Stylized image of a person
    R. S.
    Customer Success Lead
    Phone icon
    UNITED KINGDOMLondon
    Jun 23, 2023
  • Stylized image of a person
    R. S.
    Senior Salesforce Lead
    Phone icon
    United StatesMassachusetts
    Oct 22, 2024
  • Stylized image of a person
    T. W.
    Business Development Manager
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    Jun 17, 2022
  • Stylized image of a person
    W. P.
    Customer Success Manager
    Phone icon
    UNITED KINGDOMLondon
    Sep 27, 2024
  • Stylized image of a person
    M. P.
    Senior Python Developer
    Phone icon
    United KingdomEngland
    Oct 22, 2025
  • Stylized image of a person
    S. L.
    Senior Engineer
    Phone icon
    United KingdomEngland
    Nov 13, 2025
  • Stylized image of a person
    I. K.
    Senior Qa Engineer
    Phone icon
    United Kingdom
    Oct 15, 2025
  • Stylized image of a person
    A. T.
    Senior Platform Engineer
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    United Kingdom
    Oct 22, 2025
  • Stylized image of a person
    V. M.
    Senior Data Engineer
    Phone icon
    United KingdomEngland
    Mar 25, 2025
  • Stylized image of a person
    A. C.
    Senior Strategy Associate
    Phone icon
    UNITED KINGDOMLondon
    Sep 27, 2023

Frequently Asked Questions

What is Tessian known for?

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Tessian was founded in 2013 operates in the Computer and Network Security industry. The company's main headquarters is located in 15 Worship Street, 4th Floor London, England EC2A 2DT, GB; you can contact the main corporate office by phone at . Explore Tessian's company overview page for more information.

What is Tessian's most common email format?

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Tessian employees' email format typically follows the pattern of . 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?

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Tessian has approximately 201 employees as of October 2025. These team members are located across 4 continents, including EuropeNorth AmericaAsia.

Who are Tessian's key employees and leadership?

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As of October 2025, 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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