United States · Venture startup

Who invested in PhyFlex Networks

2 rounds we have observed, with the 5 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.

TelecomsHardware & Electronics

Funding summaryUpdated 26 Oct 2026

$20Mraised across 2 rounds since 2004, from 2 sources

$18MSeries A$2.5MVenture
Latest round
Venture, $2.5MOct 2005
Biggest round
$18MSeries A · Jan 2004
Investors
5
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.

20042005
$18MSeries A$2.5MVenture
First round
Series A, $18M
Jan 2004
Biggest round
$18M
Series A · Jan 2004
Between rounds
21 months
from the last two

The rounds

  1. Oct 2005
    Venture$2.5M3 returning

    From a historical funding record

  2. Jan 2004

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.

The exit

ExitBuyerPriceWhen
AcquiredCienaundisclosedSept 2007

From historical deal records. Wrong? Tell us.

Everyone who backed them

Polaris PartnersVC firm2rounds
The Vertical GroupVC firm2rounds
Argo Global CapitalGrowth equity2rounds
General CatalystVC firm1round

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

Quick answers about PhyFlex Networks

Who invested in PhyFlex Networks?

PhyFlex Networks's investors include Polaris Partners, The Vertical Group, Argo Global Capital, General Catalyst and Sofinnova Investments.

How much has PhyFlex Networks raised?

PhyFlex Networks has raised $20M across 2 rounds since 2004.

When did PhyFlex Networks last raise?

PhyFlex Networks's most recent round was a Venture of $2.5M in Oct 2005.

What was PhyFlex Networks's biggest round?

PhyFlex Networks's largest round on record is $18M (Series A), in Jan 2004.

Who backed PhyFlex Networks first?

PhyFlex Networks's first round on record, in Jan 2004, was backed by General Catalyst, Polaris Partners and Sofinnova Investments and 2 others.

What stage is PhyFlex Networks at?

PhyFlex Networks's latest named round is a Venture, in Oct 2005.

Where is PhyFlex Networks based?

PhyFlex Networks is based in the United States.

Companies like PhyFlex Networks

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

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