United States · Who invested in ProStor Systems?
ProStor Systems's investors include New Enterprise Associates, Boulder Ventures, Western Technology Investment and Sutter Hill Ventures.
20062007200820092010
$8.7MVenture$12MSeries B$5.5MSeries CUnited States · Series C startup
Who invested in ProStor Systems
3 rounds we have observed, with the 4 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
$26Mraised across 3 rounds since 2005, from 3 sources
$8.7MVenture$12MSeries B$5.5MSeries C
- Latest round
- Series C, $5.5MJul 2010
- Biggest round
- $12MSeries B · Jun 2006
- Investors
- 4
The funding story
Each circle is a round, placed by date and sized by amount. The line above is the running total.
- First round
- Venture, $8.7M Nov 2005
- Biggest round
- $12M Series B · Jun 2006
- Usual gap between rounds
- 4.1 years the median of 2
The rounds
- Jul 2010Series C$5.5M
No investor was named in the report.
From a historical funding recordSEC filing: $5.5M sold, first sale Jun 2010
- Jun 2006Series B$12M1 new2 returning
Reported by prostorsystems.com
- Nov 2005Venture$8.7M3 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.
Venture2005Series B2006Series C2010
New Enterprise Associates
Boulder Ventures
Western Technology Investment
Sutter Hill Ventures
New Enterprise AssociatesBoulder VenturesWestern Technology InvestmentSutter Hill VenturesThe exit
ExitBuyerPriceWhen
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 ProStor Systems
How much has ProStor Systems raised?
ProStor Systems has raised $26M across 3 rounds since 2005.
When did ProStor Systems last raise?
ProStor Systems's most recent round was a Series C of $5.5M in Jul 2010.
What was ProStor Systems's biggest round?
ProStor Systems's largest round on record is $12M (Series B), in Jun 2006.
Who backed ProStor Systems first?
ProStor Systems's first round on record, in Nov 2005, was backed by New Enterprise Associates, Western Technology Investment and Boulder Ventures.
What stage is ProStor Systems at?
ProStor Systems's latest named round is a Series C, in Jul 2010.
Where is ProStor Systems based?
ProStor Systems is based in the United States.
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