United States · Funded startup

Who invested in Integral Ad Science

6 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

$117Mraised across 6 rounds since 2009, from 6 sources

$2.5MSeries A$7.3MSeries B$10MSeries C$30MSeries D$27MSeries E$40MDebt
Latest round
Debt, $40MJul 2015
Step-upi
1.5×
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.

201020112012201320142015
$2.5MSeries A$7.3MSeries B$10MSeries C$30MSeries D$27MSeries E$40MDebt
First round
Series A, $2.5M
Oct 2009
Biggest round
$40M
Debt · Jul 2015
Usual gap between rounds
20 months
the median of 4

The rounds

  1. Jul 2015
    Debt$40M1 new

    From a historical funding recordSEC filing: $27M sold, first sale Jul 2015

  2. Jul 2015
    Series E$27M1 new

    From a historical funding recordSEC filing: $27M sold, first sale Jul 2015

  3. Jan 2014
    Series D$30M1 new2 returning

    From a historical funding recordSEC filing: $30M sold, first sale Dec 2013

  4. Apr 2012
    Series C$10M1 new1 returning

    Reported by venturebeat.com

  5. Jul 2010
  6. Oct 2009
    Series A$2.5M

    No investor was named in the report.

    From a historical funding record

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

Atlas VentureVC firm3rounds
SVB CapitalVC firm1round
Founder CollectiveVC firm1round
Sapphire VenturesVC firm1round
August CapitalVC firm1round
Coriolis VenturesVC firm1round

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

Also claim to have backed them

This firm lists Integral Ad Science as a portfolio company on their own website, but no report of a round names it. They are the firms' own claims, kept apart from the rounds above.

AccompliceVC firmPer its own site

Quick answers about Integral Ad Science

Who invested in Integral Ad Science?

Integral Ad Science's investors include Atlas Venture, Pelion Venture Partners, SVB Capital, Founder Collective and Sapphire Ventures, and 2 more on record.

How much has Integral Ad Science raised?

Integral Ad Science has raised $117M across 6 rounds since 2009.

When did Integral Ad Science last raise?

Integral Ad Science's most recent round was a Debt of $40M in Jul 2015.

What was Integral Ad Science's biggest round?

Its most recent round, $40M in Jul 2015, is also its largest on record.

Who backed Integral Ad Science first?

Integral Ad Science's first round on record, in Jul 2010, was backed by Founder Collective, Atlas Venture and Coriolis Ventures.

What stage is Integral Ad Science at?

Integral Ad Science's latest named round is a Debt, in Jul 2015.

Where is Integral Ad Science based?

Integral Ad Science is based in the United States.

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