United States · Series A startup

Who invested in PowerInbox

3 rounds we have observed, with the 18 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

$12Mraised across 3 rounds since 2011, from 3 sources

$1.1MSeed$800KSeed$10MSeries A
Latest round
Series A, $10MNov 2012
Step-upi
12.5×
Investors
18
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.

2012
$1.1MSeed$800KSeed$10MSeries A
First round
Seed, $1.1M
Aug 2011
Biggest round
$10M
Series A · Nov 2012
Usual gap between rounds
14 months
the median of 2

The rounds

  1. Nov 2012
  2. Oct 2011
    Seed$800K1 returning

    Reported by techcrunch.com

  3. Aug 2011

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

Correlation VenturesVC firm3rounds
Atlas VentureVC firm2rounds
Battery VenturesVC firm1round
Founder CollectiveVC firm1round
Genesis PartnersHedge fund1round
Ecosystem VenturesVC firm1round
Joe CarusoAngel1round
Karl MehtaAngel1round
Philipp StaufferAngel1round
Ted ChanAngel1round
Chris LynchAngel1round
Alan Phillipsno record of our own yet1round
Leslie Murdockno record of our own yet1round
Mark Roseno record of our own yet1round
Mike Santullono record of our own yet1round
Phillip Staufferno record of our own yet1round

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

Quick answers about PowerInbox

Who invested in PowerInbox?

PowerInbox's investors include Correlation Ventures, Atlas Venture, Longworth Venture Partners, Battery Ventures and Founder Collective, and 13 more on record.

How much has PowerInbox raised?

PowerInbox has raised $12M across 3 rounds since 2011.

When did PowerInbox last raise?

PowerInbox's most recent round was a Series A of $10M in Nov 2012.

What was PowerInbox's biggest round?

Its most recent round, $10M in Nov 2012, is also its largest on record.

Who backed PowerInbox first?

PowerInbox's first round on record, in Aug 2011, was backed by Founder Collective, Atlas Venture and Correlation Ventures and 13 others.

What stage is PowerInbox at?

PowerInbox's latest named round is a Series A, in Nov 2012.

Where is PowerInbox based?

PowerInbox is based in the United States.

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