Mimecast

Mimecast was founded in 2003 in London, England by Peter Bauer and Neil Murray. The company provides cybersecurity solutions spanning email security, human risk management, security awareness training, data archiving, and compliance. It is headquartered in London, with North American operations based in Lexington, Massachusetts.

The company's platform protects more than 42,000 organizations across 100+ countries, covering approximately 27 million users. Its core product lines include email security and continuity, cloud archiving, web security, and the Human Risk Management suite, which ties phishing simulations and awareness training outcomes to behavioral risk signals and email threat telemetry.

Mimecast listed on the Nasdaq Global Select Market in November 2015 under the ticker MIME. In May 2022, private equity firm Permira acquired the company for approximately $5.8 billion, taking it private. The company employs approximately 2,000 people globally.