United States · Series C startup

Who invested in Zumbox

4 rounds we have observed, with the 6 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.

Internet

Funding summaryUpdated 26 Oct 2026

$28Mraised across 4 rounds since 2008, from 4 sources

$3.0MVenture$5.0MVenture$9.7MVenture$11MSeries C
Latest round
Series C, $11MJul 2012
Investors
6
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.

2009201020112012
$3.0MVenture$5.0MVenture$9.7MVenture$11MSeries C
First round
Venture, $3.0M
Jun 2008
Biggest round
$11M
Series C · Jul 2012
Usual gap between rounds
17 months
the median of 3

The rounds

  1. Jul 2012
    Series C$11M2 new

    Reported by finsmes.com

  2. Dec 2010
    Venture$9.7M

    No investor was named in the report.

    Reported by venturebeat.comSEC filing: $9.7M sold, first sale Dec 2010

  3. Dec 2009
    Venture$5.0M4 new

    Reported by sec.govSEC filing: $5.0M sold, first sale Dec 2008

  4. Jun 2008
    Venture$3.0M

    No investor was named in the report.

    Reported by sec.gov

Founders and team

From the SEC filings it signed: 6 on the team.

  • AT InvestorsPromoteri
  • Arthur BilgerExecutive Officer, Directori
  • David YoungExecutive Officeri
  • John PayneExecutive Officer, Directori
  • Maury FriedmanExecutive Officer, Promoteri
  • Michael RotginExecutive Officeri

On the board, as filediAlex TischBertram Zweig

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.

Venture2008Venture2009Venture2010Series C2012Shelter Capital PartnersMichael EisnerRick BraddockComputershareBill GuthyJohn M Payne

Everyone who backed them

Shelter Capital PartnersGrowth equity1round
Michael EisnerAngel1round
Rick BraddockAngel1round
ComputershareCorporate VC1round
Bill Guthyno record of our own yet1round
John M Payneno record of our own yet1round

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

Quick answers about Zumbox

Who invested in Zumbox?

Zumbox's investors include Shelter Capital Partners, Michael Eisner, Rick Braddock, Computershare and Bill Guthy, and 1 more on record.

How much has Zumbox raised?

Zumbox has raised $28M across 4 rounds since 2008.

When did Zumbox last raise?

Zumbox's most recent round was a Series C of $11M in Jul 2012.

What was Zumbox's biggest round?

Its most recent round, $11M in Jul 2012, is also its largest on record.

Who backed Zumbox first?

Zumbox's first round on record, in Dec 2009, was backed by Shelter Capital Partners, Michael Eisner and Rick Braddock and 1 others.

What stage is Zumbox at?

Zumbox's latest named round is a Series C, in Jul 2012.

Where is Zumbox based?

Zumbox is based in the United States.

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In the same sector, and raised in the last eighteen months.

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