United Kingdom · 
Who invested in Mimecast?
Mimecast's investors include Dawn Capital, Index Ventures and Insight Partners.
2009201020112012
$3.9MSeed$3.0MSeries A$21MSeries B$62MSeries CUnited Kingdom · Series C startup
Who invested in Mimecast
4 rounds we have observed, with the 3 investors named in them. Every figure came from a named source, and where the company reported a raise to the SEC itself, that is shown beside it.
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Funding summaryUpdated 31 Oct 2026
$90Mraised across 4 rounds since 2008, from 4 sources
$3.9MSeed$3.0MSeries A$21MSeries B$62MSeries C
- Latest round
- Series C, $62MSept 2012
- Step-upi
- 3×
- Investors
- 3
The funding story
Each circle is a round, placed by date and sized by amount. The line above is the running total.
- First round
- Seed, $3.9M Aug 2008
- Biggest round
- $62M Series C · Sept 2012
- Usual gap between rounds
- 2.7 years the median of 2
The rounds
- Sept 2012
- Jan 2010
- Sept 2008
- Aug 2008Seed$3.9M
No investor was named in the report.
From a historical funding record
Founders and team
From Mimecast's own website: 6 on the team.
- Chris WeyChief Digital Officer
- David CallChief Financial Officer
- Janet ProsperChief Human Resources Officer
- Leslie NielsenChief Information Security Officer (CISO)
- Rob JunckerChief Product & Technology Officer
- Chris DollaseGeneral Counsel
Who was in which round
The busiest backers across the latest rounds. A filled square is a round they joined; a dark one, a round they led.
Everyone who backed them
Missing a round, or an investor who was in one? Tell us.
Also claim to have backed them
These 2 firms list Mimecast as a portfolio company on their own websites, but no report of a round names them. They are the firms' own claims, kept apart from the rounds above.
Quick answers about Mimecast
How much has Mimecast raised?
Mimecast has raised $90M across 4 rounds since 2008.
When did Mimecast last raise?
Mimecast's most recent round was a Series C of $62M in Sept 2012.
What was Mimecast's biggest round?
Its most recent round, $62M in Sept 2012, is also its largest on record.
Who backed Mimecast first?
Mimecast's first round on record, in Sept 2008, was backed by Dawn Capital.
What stage is Mimecast at?
Mimecast's latest named round is a Series C, in Sept 2012.
Where is Mimecast based?
Mimecast is based in the United Kingdom.
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