United States · Series D startup

Who invested in Otonomy

4 rounds we have observed, with the 13 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.

Collaboration Tools

Funding summaryUpdated 26 Oct 2026

$143Mraised across 4 rounds since 2010, from 4 sources

$10MSeries A$39MSeries B$46MSeries C$49MSeries D
Latest round
Series D, $49MApr 2014
Investors
13
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.

2011201220132014
$10MSeries A$39MSeries B$46MSeries C$49MSeries D
First round
Series A, $10M
Jun 2010
Biggest round
$49M
Series D · Apr 2014
Usual gap between rounds
8 months
the median of 3

The rounds

  1. Apr 2014
  2. Sept 2013
  3. Aug 2010
    Series B$39M4 new

    Reported by otonomy.comSEC filing: $10M sold, first sale Aug 2010

  4. Jun 2010
    Series A$10M1 new

    Reported by otonomy.comSEC filing: $11M sold, first sale May 2010

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

Novo HoldingsVC firm3rounds
Domain AssociatesVC firm3rounds
Avalon VenturesVC firm3rounds
RiverVestVC firm3rounds
OrbiMedPrivate equity2rounds
TPGPrivate equity2rounds
Perceptive AdvisorsAsset manager1round
Ally Bridge GroupPrivate equity1round
Jennison AssociatesGrowth equity1round
TPG Biotechnology PartnersGrowth equity1round
Federated Kaufmann FundGrowth equity1round

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

Quick answers about Otonomy

Who invested in Otonomy?

Otonomy's investors include Novo Holdings, Domain Associates, Avalon Ventures, RiverVest and OrbiMed, and 8 more on record.

How much has Otonomy raised?

Otonomy has raised $143M across 4 rounds since 2010.

When did Otonomy last raise?

Otonomy's most recent round was a Series D of $49M in Apr 2014.

What was Otonomy's biggest round?

Its most recent round, $49M in Apr 2014, is also its largest on record.

Who backed Otonomy first?

Otonomy's first round on record, in Jun 2010, was backed by Avalon Ventures.

What stage is Otonomy at?

Otonomy's latest named round is a Series D, in Apr 2014.

Where is Otonomy based?

Otonomy is based in the United States.

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