United States · Venture startup

Who invested in Fidelis Security Systems

3 rounds we have observed, with the 7 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.

Funding summaryUpdated 26 Oct 2026

$28Mraised across 3 rounds since 2005, from 3 sources

$4.1MSeries A$22MSeries B$2.3MVenture
Latest round
Venture, $2.3MApr 2010
Biggest round
$22MSeries B · Apr 2008
Investors
7
See who backed them

The funding story

Each circle is a round, placed by date and sized by amount. The line above is the running total.

20062007200820092010
$4.1MSeries A$22MSeries B$2.3MVenture
First round
Series A, $4.1M
May 2005
Biggest round
$22M
Series B · Apr 2008
Usual gap between rounds
2.9 years
the median of 2

The rounds

  1. Apr 2010
    Venture$2.3M

    No investor was named in the report.

    Reported by sec.govSEC filing: $2.3M sold, first sale Mar 2010

  2. Apr 2008
  3. May 2005

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.

The exit

ExitBuyerPriceWhen
AcquiredMarlin Equity PartnersundisclosedApr 2015

From historical deal records. Wrong? Tell us.

Everyone who backed them

Missing a round, or an investor who was in one? Tell us.

Quick answers about Fidelis Security Systems

Who invested in Fidelis Security Systems?

Fidelis Security Systems's investors include Inflection Point Ventures, Ascent Venture Partners, Maryland Venture Fund, Point Judith Capital and TudorVentures, and 2 more on record.

How much has Fidelis Security Systems raised?

Fidelis Security Systems has raised $28M across 3 rounds since 2005.

When did Fidelis Security Systems last raise?

Fidelis Security Systems's most recent round was a Venture of $2.3M in Apr 2010.

What was Fidelis Security Systems's biggest round?

Fidelis Security Systems's largest round on record is $22M (Series B), in Apr 2008.

Who backed Fidelis Security Systems first?

Fidelis Security Systems's first round on record, in May 2005, was backed by Inflection Point Ventures, Ascent Venture Partners and WS Investments and 1 others.

What stage is Fidelis Security Systems at?

Fidelis Security Systems's latest named round is a Venture, in Apr 2010.

Where is Fidelis Security Systems based?

Fidelis Security Systems is based in the United States.

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