About Mimecast

    Mimecast: Work Protected™

    Since 2003, Mimecast has stopped bad things from happening to good organizations by enabling them to work protected. We empower more than 40,000 customers to help mitigate risk and manage complexities across a threat landscape driven by malicious cyberattacks, human error, and technology fallibility. Our advanced solutions provide the proactive threat detection, brand protection, awareness training, and data retention capabilities that evolving workplaces need today. Mimecast solutions are designed to transform email and collaboration security into the eyes and ears of organizations worldwide.


    Founded by Peter Bauer and Neil Murray.


    Global offices including North America, Europe, United Kingdom, Africa, Australia, Singapore and India.


    Customers in more than 100 countries.


    Employees worldwide.

    Leadership Team

    Meet the leadership team

    Mimecast is led by CEO Marc van Zadelhoff. He joined the company as CEO and member of the board in January 2024. Marc has experience growing successful companies, most notably as CEO of Devo Technology and GM / CEO of IBM Security, an IBM Business Unit that he co-founded. He and his executive committee have decades of leadership experience in the cybersecurity industry.

    Marc is a curious and committed leader and puts Mimecast’s 2,200+ employees first, working alongside them to ensure customer organizations can work protected. Meet Marc and the executive team!

    Corporate Social Responsibility

    Our distinctive culture

    Through our Resilience Together corporate social responsibility program, Mimecast provides time, resources, and funds to empower those in underserved communities worldwide. To learn more about our commitment to the communities in which we live and serve, please click below.

    News & Events

    News & events

    Mimecast thought leaders are regularly sought after to provide commentary to leading media publications around the world. Their insights help executive leadership and cybersecurity professionals  learn how to manage risk and complexity, while protecting their organizations from today’s increasingly complex and sophisticated threat landscape. Read on for our latest coverage highlights and corporate announcements.

    Our awards throughout
    the years

    We've worked hard to thoughtfully build great products that truly address critical business needs. And we're proud to be recognized by thought leaders in the technology community for all that we've accomplished.


    We’re an energetic, values-led business that's entered an exciting new chapter of growth and transformation, investing in our products, technology, and our people

    We're working tirelessly to create exciting new capabilities, providing our people with unique growth opportunities unmatched elsewhere in our industry, as we accelerate real product innovation, market expansion with a channel-first approach, and always focused on our mission that matters - stopping bad things from happening to good organizations. Now is the time to join us and drive growth and innovation that’s good for our people, our business, and our customers.

    We'll continue to live the Mimecast Way - our company values, with a culture that cares, striving to build a better business while we build a bigger business - for the benefit of our people, customers, and the wider community.

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