United States · Who invested in Fastback Networks?
Fastback Networks's investors include Foundation Capital, Matrix Partners, Granite Ventures, Juniper Networks and Harmony Partners.
20142015
$15MSeries B$15MSeries C$15MSeries C
United States · Series C startup
Who invested in Fastback Networks
3 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.
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Funding summaryUpdated 31 Oct 2026
$45Mraised across 3 rounds since 2013, from 4 sources
$15MSeries B$15MSeries C$15MSeries C
- Latest round
- Series C, $15MJan 2015
- Investors
- 5
The funding story
Each circle is a round, placed by date and sized by amount. The line above is the running total.
- First round
- Series B, $15M May 2013
- Biggest round
- $15M Series C · Jan 2015
- Usual gap between rounds
- 18 months the median of 2
The rounds
- Jan 2015
- Oct 2014Series C$15M1 new4 returning
From a historical funding record and 1 other
- May 2013Series B$15M4 new
Reported by venturebeat.com
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 B2013Series C2014Series C2015
Foundation Capital
Matrix Partners
Granite VenturesJuniper Networks
Harmony Partners
Foundation CapitalMatrix PartnersGranite VenturesJuniper NetworksHarmony PartnersEveryone who backed them
Juniper NetworksGrowth equity2rounds
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Quick answers about Fastback Networks
How much has Fastback Networks raised?
Fastback Networks has raised $45M across 3 rounds since 2013.
When did Fastback Networks last raise?
Fastback Networks's most recent round was a Series C of $15M in Jan 2015.
What was Fastback Networks's biggest round?
Its most recent round, $15M in Jan 2015, is also its largest on record.
Who backed Fastback Networks first?
Fastback Networks's first round on record, in May 2013, was backed by Foundation Capital, Matrix Partners and Granite Ventures and 1 others.
What stage is Fastback Networks at?
Fastback Networks's latest named round is a Series C, in Jan 2015.
Where is Fastback Networks based?
Fastback Networks is based in the United States.
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