United States · Series E startup

Who invested in Athenahealth

3 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 31 Oct 2026

$40Mraised across 3 rounds since 1999, from 3 sources

$10MSeries A$30MSeries B
Latest round
Series EApr 2004
Biggest round
$30MSeries B · Dec 2000
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.

20002001200220032004
$10MSeries A$30MSeries B?Series E
First round
Series A, $10M
Oct 1999
Biggest round
$30M
Series B · Dec 2000
Usual gap between rounds
3.4 years
the median of 2

The rounds

  1. Apr 2004
    Series EAmount undisclosed1 new

    From a historical funding record

  2. Dec 2000
    Series B$30M1 returning

    From a historical funding record

  3. Oct 1999
    Series A$10M1 new

    From a historical funding record

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.

Series A1999Series B2000Series E2004VenrockGGV Capital

Everyone who backed them

VenrockVC firm2rounds
GGV CapitalVC firm1round

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

Also claim to have backed them

These 6 firms list Athenahealth as a portfolio company on their own websites, but no report of a round names them. They are the firms' own claims, kept apart from the rounds above.

Draper AssociatesVC firmPer its own site
Oak Investment PartnersPrivate equityPer its own site
Mercury FundVC firmPer its own site
Aspect VenturesVC firmPer its own site
Cardinal PartnersVC firmPer its own site
Sana CapitalGrowth equityPer its own site

Quick answers about Athenahealth

Who invested in Athenahealth?

Athenahealth's investors include Venrock and GGV Capital.

How much has Athenahealth raised?

Athenahealth has raised $40M across 3 rounds since 1999. One round did not disclose an amount, so the total is a floor.

When did Athenahealth last raise?

Athenahealth's most recent round was a Series E in Apr 2004.

What was Athenahealth's biggest round?

Athenahealth's largest round on record is $30M (Series B), in Dec 2000.

Who backed Athenahealth first?

Athenahealth's first round on record, in Oct 1999, was backed by Venrock.

What stage is Athenahealth at?

Athenahealth's latest named round is a Series E, in Apr 2004.

Where is Athenahealth based?

Athenahealth is based in the United States.

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