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Mimecast
Cybersecurity · London, United Kingdom · Founded 2003 · IPO 2015 Unicorn
Mimecast mafia
Startups founded by Mimecast alumni
Former Mimecast employees who went on to start their own companies. Sorted by Dealroom signal score.
Ophir DrorIsrael
Neil MurrayIsrael
Oscar MarquezAustralia
Masha SedovaUnited States
Holly StephensUnited KingdomGlobal footprint
Where Mimecast has talent and traffic
(18 of 2,420 staff)
team presence
across markets
Patent intelligence
$14M patent portfolio · 54 active families
Where Mimecast concentrates vs peers
Each axis is a top-10 topic across Mimecast and its closest peers. #1 = 100, #10 = 10, absent = 0.
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.
7 deals across Mimecast's capital deployment.
Where the deals concentrate by sector, stage, and decade.
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.
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”.
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.