About Us

eXo began as an open-source project in 2002 focused on implementing the industry’s first Java portlet container. The project grew into a company in 2003, to start working with our first customer, the U.S. Department of Defense. Since then, we have developed our software, solutions, and company following an innovative vision and leveraging feedback from our customers and community.


Today, eXo is the leading open-source provider of innovative collaboration and communication solutions for enterprises, with hundreds of successful deployments. We are a growing global company, spanning three continents with U.S. headquarters in San Francisco, California; global headquarters in France; and a regional office in Tunisia.

Our Goal

Our goal is to help our clients embrace modern ways of engaging and collaborating at work. By connecting employees and leveraging ecosystems in a new way, companies get a unified innovative workforce, an engaged community, and better performance.


On a larger scale, we believe enabling a more flexible work culture drives progress in societal issues such as work–family balance, career advancement for women, and territorial development.

Our Leadership Team

Our leadership team brings together a unique mixture of talents, and its members are dedicated to helping our clients.

  • Benjamin Mestrallet

    Benjamin Mestrallet

    Founder & CEO

  • Veronika Mazour

    Veronika Mazour

    Chief Operating Officer

  • Patrice Lamarque

    Patrice Lamarque

    Chief Product Officer

  • Oualid Chaker

    Oualid Chaker

    EVP Sales

  • Charles Magral

    Charles Magral

    EVP Client Solutions

  • Shazia Ben Jaâfar

    Shazia Ben Jaâfar

    VP Client Success

  • Wassim Zlitni

    Wassim Zlitni

    VP Marketing

  • Hatem Bouhamed

    Hatem Bouhamed

    VP Finance