United States · Venture startup

Who invested in Zenph Sound Innovations

2 rounds we have observed, with the 2 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

$11Mraised across 2 rounds since 2009, from 2 sources

$11MSeries A$107KVenture
Latest round
Venture, $107KMar 2011
Biggest round
$11MSeries A · Nov 2009
Investors
2
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.

20102011
$11MSeries A$107KVenture
First round
Series A, $11M
Nov 2009
Biggest round
$11M
Series A · Nov 2009
Between rounds
16 months
from the last two

The rounds

  1. Mar 2011
    Venture$107K

    No investor was named in the report.

    From a historical funding recordSEC filing: $107K sold, first sale Feb 2011

  2. Nov 2009
    Series A$11M2 new

    From a historical funding recordSEC filing: $3.4M sold, first sale Nov 2009

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

Intersouth PartnersVC firm1round
Capitol Broadcasting CompanyInvestment firm1round

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

Quick answers about Zenph Sound Innovations

Who invested in Zenph Sound Innovations?

Zenph Sound Innovations's investors include Intersouth Partners and Capitol Broadcasting Company.

How much has Zenph Sound Innovations raised?

Zenph Sound Innovations has raised $11M across 2 rounds since 2009.

When did Zenph Sound Innovations last raise?

Zenph Sound Innovations's most recent round was a Venture of $107K in Mar 2011.

What was Zenph Sound Innovations's biggest round?

Zenph Sound Innovations's largest round on record is $11M (Series A), in Nov 2009.

Who backed Zenph Sound Innovations first?

Zenph Sound Innovations's first round on record, in Nov 2009, was backed by Intersouth Partners and Capitol Broadcasting Company.

What stage is Zenph Sound Innovations at?

Zenph Sound Innovations's latest named round is a Venture, in Mar 2011.

Where is Zenph Sound Innovations based?

Zenph Sound Innovations is based in the United States.

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