United States · Series A startup

Who invested in Fathom Online

One round we have observed, with the one investor named in it. Every figure came from a named source, and where the company reported a raise to the SEC itself, that is shown beside it.

Advertising & Adtech

Funding summaryUpdated 26 Oct 2026

$6.0Mraised across 1 round since 2004, from 1 source

Latest round
Series A, $6.0MJul 2004
Investors
1
See who backed them

The rounds

  1. Jul 2004
    Series A$6.0M

    From a historical funding record

The exit

ExitBuyerPriceWhen
AcquiredGeary InteractiveundisclosedMar 2008

From historical deal records. Wrong? Tell us.

Everyone who backed them

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

Quick answers about Fathom Online

Who invested in Fathom Online?

Fathom Online's investors include Constellation Ventures.

How much has Fathom Online raised?

Fathom Online has raised $6.0M across 1 round since 2004.

When did Fathom Online last raise?

Fathom Online's most recent round was a Series A of $6.0M in Jul 2004.

What was Fathom Online's biggest round?

Its most recent round, $6.0M in Jul 2004, is also its largest on record.

Who backed Fathom Online first?

Fathom Online's first round on record, in Jul 2004, was backed by Constellation Ventures.

What stage is Fathom Online at?

Fathom Online's latest named round is a Series A, in Jul 2004.

Where is Fathom Online based?

Fathom Online is based in the United States.

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