Mimecast is a cybersecurity company focused on reducing human-centered cyber risk across email, collaboration, data, and user behavior. Its AI-powered, API-enabled connected human risk platform is designed to help organizations detect threats, protect communications, safeguard sensitive information, and give security teams clearer visibility into where risk is building.
The company’s portfolio spans email and collaboration threat protection, insider risk and data protection, governance and compliance controls, security awareness, and cloud archiving. Mimecast positions these capabilities as part of a unified human risk management approach that combines detection, response, governance, and user engagement rather than treating them as isolated point problems.
Offerings, Capabilities, and Integrations
Mimecast delivers layered protection for email and modern collaboration environments, with capabilities that address phishing, business email compromise, malware, spoofing, insider-driven data loss, compliance monitoring, e-discovery, and employee behavior change. Its platform is built to connect risk signals across email, chat, file-sharing, and cloud applications so security teams can prioritize response and apply more adaptive controls.
Mimecast supports flexible deployment models, including gateway-based and API-based approaches, and is designed to work across Microsoft 365, Google Workspace, on-premise, and hybrid email environments. It also emphasizes interoperability through APIs and technology integrations that connect with SIEM, SOAR, XDR, IAM, HCM, and other security and operations tools, helping customers extend visibility, automate workflows, and reduce siloed security operations.
Products and Services
- Advanced Email Security: AI-powered email security for Microsoft 365, Google Workspace, on-premise, and hybrid environments that helps stop phishing, BEC, ransomware, malware, and impersonation attacks through gateway-based or API-based deployment.
- Incydr Data Protection: Adaptive data protection and insider risk solution that monitors endpoint, cloud, browser, and email activity to detect exfiltration, shadow IT, and shadow AI behavior and support targeted response.
- Aware Governance & Compliance Suite: Collaboration governance and compliance offering that gives teams visibility and control over data in tools such as Slack, Microsoft Teams, Zoom, and Google Workspace for retention, investigations, and policy enforcement.
- Engage Security Awareness: Security behavior management and awareness training solution that combines phishing simulations, targeted interventions, microlearning, and risk-based user guidance.
- Collaboration Threat Protection: Add-on protection for collaboration environments that helps defend Microsoft Teams, OneDrive, and SharePoint against malicious links, attachments, and collaboration-borne attacks.
- DMARC Analyzer: Domain authentication and brand protection solution that helps organizations monitor DMARC, improve deliverability, and prevent direct domain spoofing.
- Email Archive: Cloud archive for email and related collaboration data that supports retention, supervision, compliance, legal hold, and e-discovery workflows.
- Human Risk Command Center: Unified risk management layer that aggregates Mimecast and third-party security signals to score user risk, surface risky behaviors, and trigger adaptive protection actions.
- Email Continuity: Cloud-based continuity service that keeps email available during outages or maintenance events and supports failover, failback, and mailbox synchronization.
- Sync & Recover: Backup and recovery capability for email and productivity data that helps restore files, folders, contacts, tasks, notes, and related content after outages or data loss events.
- Advanced BEC Protection: AI-powered business email compromise defense that analyzes communication patterns, writing style, and context to identify payloadless impersonation and fraud attempts.
Target Customers
Mimecast serves organizations that rely heavily on email and cloud collaboration and need stronger protection than native platform controls alone typically provide. Its offerings fit both lean IT and security teams that need simpler deployment and administration and larger enterprises that want broader visibility, policy control, and integration across complex environments.
The company is particularly relevant for businesses with compliance, archiving, or insider risk requirements, as well as organizations using Microsoft 365, Google Workspace, Slack, Microsoft Teams, and similar collaboration tools. Its solutions align with the needs of security operations, IT, legal, compliance, HR, and data governance teams across sectors such as finance, healthcare, technology, manufacturing, education, and public sector environments.
Cloud Integrations and Marketplace
- AWS Marketplace: Mimecast maintains an AWS Marketplace presence and offers products such as Advanced Email Security for procurement through the marketplace.
- Azure Marketplace: Mimecast has verified Azure Marketplace listings that include Mimecast Email Security as well as Microsoft-focused integrations such as Microsoft Entra ID single sign-on and Azure security operations connectivity.
Key People
- Marc van Zadelhoff: Chief Executive Officer
- David Call: Chief Financial Officer
- Ranjan Singh: Chief Product & Technology Officer
- Graham Douglas: Chief Customer & Revenue Officer
- Adenike (Nikki) Cosgrove: Chief Marketing Officer
- Janet Prosper: Chief Human Resources Officer
- Chris Dollase: General Counsel
- Chris Wey: Chief Digital Officer
- Rob Juncker: Chief Product Officer
- Leslie Nielsen: Chief Information Security Officer
Key Facts
- Headquarters: London, United Kingdom
- Employees: 2,200+
- Annual Revenue: $500M-$600M
- Parent Company: Permira
- Subsidiaries: None
- Publicly Listed: Private
Analyst Recognitions
- Gartner: 2025 Gartner Magic Quadrant for Email Security — Leader. 2025 Gartner Magic Quadrant for Digital Communications Governance and Archiving Solutions — Leader. 2025 Gartner Market Guide for Data Loss Prevention — Representative Vendor.
- Forrester: 2025 Forrester Wave: Email, Messaging, and Collaboration Security Solutions, Q2 2025 — Strong Performer. 2024 Forrester Wave: Human Risk Management Solutions, Q3 2024 — Strong Performer.
