Mimecast

Mimecast

Mimecast Services Limited

London, United Kingdom

Email SecurityData ProtectionDetection & ResponseIdentity & Access
Founded 2003Serves Enterprise, SMB
Profile last updated: May 4, 2026

About

Founded in 2003, Mimecast is a cybersecurity company based in London, United Kingdom working in email security, data protection, detection & response +4 more.

Mimecast is a cybersecurity company providing email and collaboration threat protection, human risk management, insider risk management and data protection, and security awareness training. Its platform includes AI-driven detection of phishing, business email compromise and impersonation, data loss and insider threat monitoring through the Incydr product, and governance and archiving tools. Mimecast also offers a newer agentic AI security capability for discovering and governing AI agents. The company states it protects more than 42,000 organisations and has operated since 2003. It sells through resellers, distributors and managed service providers, and runs a Tech Alliance partner programme.

Location

London, United Kingdom

Founded

2003

Legal name

Mimecast Services Limited

Focus areas

email securityhuman risk managementinsider riskdata loss preventionsecurity awareness trainingAI agent securitybusiness email compromisearchiving and governance

Languages

ENDEESFRIT

Services & products

Security domains

Email SecurityData ProtectionDetection & ResponseIdentity & AccessSecurity AwarenessThreat IntelligenceGRC & Compliance

How they deliver

SoftwareProfessional ServicesReseller

Products

Mimecast Human Risk Management Platform

Human risk management

Platform that detects risky user behaviour across email, chat and file-sharing and applies policy enforcement and automated response.

Email & Collaboration Threat Protection

Email security

AI-powered protection against phishing, business email compromise, impersonation, malware and collaboration-based attacks across email and tools such as Teams and Slack.

Mimecast Incydr

Insider risk management / DLP

Monitors file movement and user behaviour to detect insider risk and data exfiltration without policy setup.

Mihra

AI security agent

Mimecast Intelligent Human Risk Agent that automates triage and speeds up investigations.

Customers

EnterpriseSMB

Compliance & partners

Compliance frameworks

UK CAF

Technology partners

Microsoft

Credentials & affiliations

Awards

Gartner Magic Quadrant Leader for Email Security Platforms

Gartner2025

Gartner Magic Quadrant Leader for Digital Communications Governance and Archiving Solutions (DCGAS)

Gartner2025

Forrester Wave: Human Risk Management Solutions, Strong Performer

Forrester

Gartner Representative Vendor, Data Loss Prevention

Gartner

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