United States · Growth startup

Who invested in Atterocor

2 rounds we have observed, with the 4 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 31 Oct 2026

$25Mraised across 2 rounds since 2012, from 2 sources

$16MSeries A$8.5MGrowth
Latest round
Growth, $8.5MFeb 2013
Biggest round
$16MSeries A · Aug 2012
Investors
4
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.

2013
$16MSeries A$8.5MGrowth
First round
Series A, $16M
Aug 2012
Biggest round
$16M
Series A · Aug 2012
Between rounds
7 months
from the last two

The rounds

  1. Feb 2013
    Growth$8.5M

    No investor was named in the report.

    Reported by sec.govSEC filing: $8.5M sold, first sale Jul 2012

  2. Aug 2012
    Series A$16M4 new

    Reported by finsmes.comSEC filing: $1.5M sold, first sale Jul 2012

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

5AM VenturesVC firm1round
Frazier Healthcare PartnersPrivate equity1round
Ann Arbor SPARKAccelerator1round

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

Quick answers about Atterocor

Who invested in Atterocor?

Atterocor's investors include 5AM Ventures, Frazier Healthcare Partners, Osage University Partners and Ann Arbor SPARK.

How much has Atterocor raised?

Atterocor has raised $25M across 2 rounds since 2012.

When did Atterocor last raise?

Atterocor's most recent round was a Growth of $8.5M in Feb 2013.

What was Atterocor's biggest round?

Atterocor's largest round on record is $16M (Series A), in Aug 2012.

Who backed Atterocor first?

Atterocor's first round on record, in Aug 2012, was backed by 5AM Ventures, Frazier Healthcare Partners and Osage University Partners and 1 others.

What stage is Atterocor at?

Atterocor's latest named round is a Growth, in Feb 2013.

Where is Atterocor based?

Atterocor is based in the United States.

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