Mimecast
Headquarters
London, EnglandFounded
2003CEO / Founder
Ranjan SinghEmployees
1001-5000Funding
AcquiredProducts
1 product listedAvg. AI Score
7.5/10Website
www.mimecast.com/
Profile updated
About 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.
Specialties
Financials
Dated, source-cited figures. Estimates are marked.
Products by Mimecast
All products by Mimecast reviewed by our AI panel of experts.
How Our Review Panel Scores Mimecast
Six independent reviewer personalities assessed Mimecast's product on their own terms. They disagreed by 1.0 points — The Finance Lead was the hardest to convince, The Decision Maker the most positive.
Averaged across 1 reviewed product in our catalog. Scores are out of 10.
Competitive Landscape
Who Mimecast competes with, and how they differ.
Mimecast's closest rival in combined email security and security-awareness training, targeting the same large-enterprise buyer; Proofpoint made a rejected $6.7B counter-bid for Mimecast in 2021 and historically skews more upmarket-enterprise where Mimecast has focused more on SMB/mid-market.
Abnormal AI (Abnormal Security) takes an API-based, AI-native detection approach to email threats (BEC, account takeover) versus Mimecast's gateway-plus-training model that layers awareness training and human-risk scoring on top of mail-flow inspection.
1 product reviewed on TopReviewedKnowBe4 is the category leader in security-awareness training specifically (the same segment as Mimecast's Ataata-derived Awareness Training product), sold as a standalone training/phishing-simulation platform rather than bundled with email security infrastructure.
Darktrace applies self-learning AI to email and network traffic for anomaly-based threat detection, competing at the AI-driven-detection layer, while Mimecast pairs detection with human-risk management, data compliance, and archiving in one platform.
1 product reviewed on TopReviewedCompany Timeline
Key milestones in Mimecast's history, with sources.
- Milestone
Ranjan Singh appointed CEO
Mimecast named Ranjan Singh, previously its Chief Product & Technology Officer, as CEO effective immediately, succeeding Marc van Zadelhoff, who moved to a board advisor role.
uk.finance.yahoo.com - Acquisition
Acquired Aware
Mimecast acquired Aware, an AI-powered platform that identifies risk and supports compliance in workplace collaboration tools like Slack and Microsoft Teams, for an undisclosed price.
siliconangle.com - Acquisition
Acquired Code42
Mimecast acquired data-loss and insider-risk vendor Code42, adding its Incydr platform and about 175 employees; terms were not disclosed.
crn.com - Milestone
Marc van Zadelhoff appointed CEO
Mimecast named cybersecurity veteran Marc van Zadelhoff (former CEO of Devo, COO of LogMeIn, founder of IBM Security) as CEO, succeeding co-founder Peter Bauer, who had led the company since its 2003 founding.
citybiz.co - Acquisition
Acquired Elevate Security
Mimecast acquired Elevate Security, a startup that identifies high-risk users from behavioral and contextual data, for integration into Mimecast's security-awareness training platform; financial terms were not disclosed.
crn.com - Acquisition
Permira completed $5.8B take-private acquisition
Permira-advised funds completed their acquisition of Mimecast for approximately $5.8 billion, or $80.00 per share in cash; Mimecast stock ceased trading and the company became privately held.
sec.gov - Milestone
Rejected higher counter-bid from rival Proofpoint
During the go-shop period of the Permira deal, Mimecast's board rejected a competing offer from rival Proofpoint of $92.50 per share (about $6.7 billion, 15.5% above Permira's bid), citing antitrust and execution-risk concerns.
crn.com - Acquisition
Agreed to be acquired by Permira for $5.8B
Mimecast entered a definitive agreement for Permira-advised funds to acquire the company for $80.00 per share in an all-cash deal valuing Mimecast at approximately $5.8 billion equity value.
sec.gov - Acquisition
Acquired Solebit for $88 million
Mimecast acquired Israeli cybersecurity startup Solebit Labs for $88 million, adding advanced content-disarm-and-reconstruction threat detection technology.
mimecast.com - Acquisition
Acquired Ataata
Mimecast acquired Ataata, a security-awareness training and human-risk-scoring startup, forming the technology base of what became the Mimecast Awareness Training product.
itwire.com - Milestone
IPO on Nasdaq (MIME)
Mimecast priced its IPO at $10.00 per share, selling 7,750,000 ordinary shares to raise approximately $77.5 million gross, and began trading on the Nasdaq Global Select Market under ticker MIME.
sec.gov - Founded
Mimecast founded in London
Mimecast was founded in 2003 by Peter Bauer and Neil Murray with a mission to make email safer and better; its first service, Mimecast Email Security, launched later that year.
sec.gov
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