United States · Who invested in Sipera Systems?
Sipera Systems's investors include Austin Ventures, Star Ventures, Sequoia Capital, Duchossois Technology Partners and S3 Ventures.
200520062007200820092010
$6.3MSeries A$13MSeries B$10MSeries C$10MSeries DUnited States · Series D startup
Who invested in Sipera Systems
4 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.
Funding summaryUpdated 26 Oct 2026
$40Mraised across 4 rounds since 2005, from 4 sources
$6.3MSeries A$13MSeries B$10MSeries C$10MSeries D
- Latest round
- Series D, $10MMay 2010
- Biggest round
- $13MSeries B · Mar 2006
- 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 A, $6.3M Feb 2005
- Biggest round
- $13M Series B · Mar 2006
- Usual gap between rounds
- 18 months the median of 3
The rounds
- May 2010Series D$10M1 new4 returning
Reported by texastechpulse.comSEC filing: $10M sold, first sale May 2010
- Sept 2007Series C$10M1 new3 returning
Reported by sipera.com
- Mar 2006
- Feb 2005
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 A2005Series B2006Series C2007Series D2010
Austin Ventures
Star Ventures
Sequoia Capital
Duchossois Technology Partners
S3 Ventures
Austin VenturesStar VenturesSequoia CapitalDuchossois Technology PartnersS3 VenturesThe exit
ExitBuyerPriceWhen
AcquiredAvayaundisclosedOct 2011
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 Sipera Systems
How much has Sipera Systems raised?
Sipera Systems has raised $40M across 4 rounds since 2005.
When did Sipera Systems last raise?
Sipera Systems's most recent round was a Series D of $10M in May 2010.
What was Sipera Systems's biggest round?
Sipera Systems's largest round on record is $13M (Series B), in Mar 2006.
Who backed Sipera Systems first?
Sipera Systems's first round on record, in Feb 2005, was backed by Austin Ventures and Star Ventures.
What stage is Sipera Systems at?
Sipera Systems's latest named round is a Series D, in May 2010.
Where is Sipera Systems based?
Sipera Systems is based in the United States.
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