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COMPANY PROFILE

Mimecast

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SaaS-based email management and security platform

London, United KingdomFounded 2003Cybersecurity
Valuation $5.80B Market cap · 2026
Revenue $267M Latest reported FY
EBITDA $127M Latest reported FY

At a glance

Status
Listed
Founded
2003
Headquarters
London, United Kingdom
Listing
IPO 2015
Sector
Cybersecurity
Power Law
Unicorn$1–10B valuation tierThoroughbred$100M+ revenue

Knowledge graph

News, research, reports and resources connected to this company by Dealroom
Analysis European cybersecurity funding is on track for an all-time high Sep 15, 2026

Investors

4 investors on the cap table

From Dealroom's funding and investor records, grouped by the round each investor first entered.

Series A1 investor entered at this stage

  • Dawn Capital

Series B and later3 investors entered at this stage

Talent

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Employees mapped 2,397 incl. 18 AI specialists
Founders Hidden — book a demo/100 quality score
Key operators 10 quality Hidden — book a demo/100
Potential founders Hidden — book a demo likely future founders
Startup mafia 9 alumni-founded startups
Talent movements Hidden — book a demo in · Hidden — book a demo out past 12 months

Source: Dealroom Talent Intelligence.

Alumni founders

5 of 9 startups shown

Former Mimecast employees who went on to found companies, sorted by Dealroom signal score.

Red AccessEst. 2021
TDTal DeryIsrael
Signal score90
Lasso SecurityEst. 2023
Elad SchulmanIsrael
Signal score87
PrevasioEst. 2020
Oscar MarquezAustralia
Signal score66
LoveCraftsEst. 2013
CFCherry FreemanUnited Kingdom
Signal score64
SolebitEst. 2014
Neil MurrayIsrael
Signal score63
4 more alumni-founded companies in this previewBook a demo

Global footprint

Workforce and web traffic by country
Workforce by country
30 countries with
team presence
🇺🇸 United States39.3%
🇬🇧 United Kingdom25.5%
🇿🇦 South Africa14.4%
🇮🇳 India6.9%
🇦🇺 Australia3.5%
Top 5 of 30 shown
Web traffic by country
5.8M monthly visits
across markets
🇺🇸 United States61.7%
🇬🇧 United Kingdom11.4%
🇿🇦 South Africa7.2%
🇦🇺 Australia3.7%
🇮🇳 India1.5%
Top 5 markets shown

Patents

Estimated portfolio value
$14M

56 active patent families included in this estimate.

A patent family groups patent filings for the same invention. Source: Dealroom · PatSnap.

Explore the patent portfolioPatent records, technology areas and peer comparisonsBook a demo

Investments and acquisitions

Disclosed deals where Mimecast was the backer or acquirer, 2016–2024. Toggle between venture rounds, M&A, or both. The map below is grouped by the target company's sector — the colored pill on each chip is the round type.

Portfolio analysis

7 deals across Mimecast's capital deployment.

Where the deals concentrate by sector, stage, and decade.

By sectorCount
    By stageCount
      By periodCount

        Where Mimecast deploys vs peers

        Each axis is a Dealroom topic tag — picked from the cluster's most-tagged themes. Values are normalized per axis: the peer with the highest tag-coverage on that axis sits at the edge, others scale relative to them. Toggle between M&A, venture, or both.

        Compare against

        Mimecast's portfolio, mapped.

        Stage
        Period
        7 of 7 deals

        Market sentiment

        Posts on X, past 7 days

        An AI-synthesised read of the highest-engagement posts about Mimecast on X, ranked by likes and reposts, corporate channels excluded.

        Reading the room on X — pulling top posts and synthesizing themes…

        Source: X recent search ranked by engagement (likes + retweets) · Synthesis by Claude · Cached for 1 hour

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        Live deal flow, founder pedigree, hiring signals, revenue trajectory, and the full cap table.

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