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

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

North America
30

Minus sign iconPlus sign icon
  • United States Of America
    29
  • Mexico
    1

Asia
7

Minus sign iconPlus sign icon
  • India
    3
  • Turkey
    2
  • Israel
    1
  • Uzbekistan
    1

Africa
1

Minus sign iconPlus sign icon
  • Morocco
    1

Tessian's Leadership

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

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
    B. M.
    Director
    Phone icon
    UNITED KINGDOM
    Apr 10, 2023
  • Stylized image of a person
    M. L.
    Engineering Director
    Phone icon
    UNITED KINGDOMLondon
    Oct 31, 2023
  • Stylized image of a person
    M. G.
    Director Of Corporate And Gtm Finance
    Phone icon
    United StatesMassachusetts
    Aug 08, 2023
  • Stylized image of a person
    S. C.
    Director
    Phone icon
    UNITED KINGDOM
    Apr 10, 2023
  • Stylized image of a person
    M. A. S.
    Data Science And Engineering Manager
    Phone icon
    United Kingdom
    Oct 29, 2025
  • Stylized image of a person
    A. M.
    Engineering Manager
    Phone icon
    United KingdomEngland
    Oct 22, 2025
  • Stylized image of a person
    A. B.
    Senior Product Manager
    Phone icon
    United KingdomEngland
    Oct 22, 2025
  • Stylized image of a person
    L. H. M.
    Customer Onboarding Manager (acquired By Proofpoint)
    Phone icon
    United StatesMassachusetts
    Oct 15, 2025
  • Stylized image of a person
    J. H.
    Customer Program Manager
    Phone icon
    United Kingdom
    Oct 22, 2025
  • Stylized image of a person
    C. T.
    Marketing Manager
    Phone icon
    UNITED KINGDOMLondon
    Oct 31, 2023

Frequently Asked Questions

What is Tessian known for?

Minus sign iconPlus sign icon
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?

Minus sign iconPlus sign icon
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?

Minus sign iconPlus sign icon
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?

Minus sign iconPlus sign icon

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.

Looking for contact data? Unlock accurate emails and phone numbers for your ideal prospects with LeadIQ.

Ready to create more pipeline?

Get a demo and discover why thousands of SDR and Sales teams trust
LeadIQ to help them build pipeline confidently.

© LeadIQ, Inc. All rights reserved.