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Mimecast

Cybersecurity · London, United Kingdom · Founded 2003 · IPO 2015

SaaS-based email management and security platform

Valuation $5.80B
Revenue $267M
EBITDA $127M

Investors

4 investors on Mimecast's cap table

Sourced from Dealroom's funding history. Investor profile links are shown where available.

Series A 1 investor entered at this stage
Dawn Capital
Series B+ 3 investors entered at this stage

Global footprint

Where Mimecast has talent and traffic

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

Talent graph

The shape of Mimecast's talent

Dealroom maps Mimecast's team person by person — pinpointing the standout operators and scoring them across the six dimensions investors underwrite. The counts and shape below are a public preview; the named individuals and exact scores live in the platform.

10 standout operatorsDealroom-flagged across the org
18 AI specialistsincl. 6 core researchers
2,397 employees mappedperson by person
DimensionScore
AI Talentlive Score hidden — book a demo
Engineering Score hidden — book a demo
Product Score hidden — book a demo
Go-to-market Score hidden — book a demo
Leadership Score hidden — book a demo
Research Score hidden — book a demo
Book a demo to unlock Mimecast's exact scores

Source: Dealroom Talent Intelligence. Public profiles show counts and the team's shape only — request a demo for the named individuals, per-person seniority and tenure, and team benchmarks vs peers.

Patent intelligence

$14M patent portfolio · 56 active families

Estimated portfolio value
$14M
0.24% of market cap · 2.9× smaller than top peer Zscaler ($41M)
56 active patent families
Where Mimecast innovates Computer securityData scienceElectronic communicationInternet privacyWorld Wide Web

Where Mimecast concentrates vs peers

Each axis is a top-10 topic across Mimecast and its closest peers. #1 = 100, #10 = 10, absent = 0.

Compare against

Source: Dealroom Patent Intelligence · Patsnap. Request a demo for the full per-sub-category breakdown, individual records, and quality-score history.

Capital deployed

Mimecast's 7 investments and acquisitions.

Every disclosed deal where Mimecast appeared as a 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

        01 · Deployment strategy vs peers

        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

        02 · Portfolio market map

        Mimecast's portfolio, mapped.

        Each chip is one company. Pill colour shows round type — green for Seed, blue for Series A, purple for B/C+, pink for late-stage, amber for M&A. Bigger sectors keep their full list behind “+ N more”.

        Stage
        Period
        7 of 7 deals

        Market sentiment

        What the market is saying about Mimecast

        An AI-synthesized read of the highest-engagement posts about Mimecast on X over the past 7 days. We rank by likes & retweets, ignore corporate channels, and surface the themes that broke out from real people.

        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

        See Mimecast on the full Dealroom platform

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