Mimecast, a privately owned company headquartered in the UK, was founded in 2003. With approximately 2,140 employees, the company operates in the computer and network security sector, specializing as a fraud prevention provider.
On June 26, 2026, Mimecast appointed Ranjan Singh as Chief Executive Officer, effective immediately, to lead the company's next phase of execution and platform-led growth. Singh succeeds Marc van Zadelhoff, who transformed the company from an email security leader into a unified human data and AI risk platform during his time as CEO. Previously, on June 24, mid-market IT service provider blueAPACHE launched a Human Risk Management-as-a-service, powered by Mimecast's AI security platform. This per-user monthly model integrates awareness training, policy visibility, behavioral controls, and incident remediation into an outcome-based service for mid-market organizations.
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