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Cybersecurity Company

Mimecast

Email security and cyber resilience provider covering human risk, data protection and governance

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About Mimecast

Mimecast is a cybersecurity company that began with email security. Its cloud platform protects email and collaboration tools and manages risk from people, data and AI tools.

Services

  • Email threat protection: defence against dangerous email.
  • Human risk management: awareness training and behaviour insight.
  • Data loss prevention: controls to stop sensitive information leaving.
  • Digital communications governance: collecting, searching and governing communications, including AI systems.
  • Archiving and uptime assurance: keeping email data and service available.

Who it serves

Organisations of all sizes worldwide. The company says more than 42,000 use it, supported by a security operations centre and partners.

Key facts

  • Platform: cloud suite with open APIs
  • Analyst recognition: named in the 2025 Gartner Email Security Magic Quadrant

Profile written by TrustList from the business's own published information, Oct 2026.

Categories & features

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