United States · 
Who invested in Siperian?
Siperian's investors include Reed Elsevier Ventures, Blumberg Capital, Investor AB, Constellation Ventures and ArrowPath Venture Partners, and 4 more on record.
2005200620072008
$7.0MSeries C$25MSeries EUnited States · Series E startup
Who invested in Siperian
2 rounds we have observed, with the 9 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
$32Mraised across 2 rounds since 2004, from 2 sources
$7.0MSeries C$25MSeries E
- Latest round
- Series E, $25MJan 2008
- Step-upi
- 3.6×
- Investors
- 9
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 C, $7.0M Jun 2004
- Biggest round
- $25M Series E · Jan 2008
- Between rounds
- 3.6 years from the last two
The rounds
- Jan 2008
- Jun 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
From historical deal records. Wrong? Tell us.
Everyone who backed them
Reed Elsevier VenturesGrowth equity2rounds
ArrowPath Venture PartnersVC firm1round
Red Rock VenturesVC firm1round
Anthem Capital ManagementInvestment firm1round
Missing a round, or an investor who was in one? Tell us.
Quick answers about Siperian
How much has Siperian raised?
Siperian has raised $32M across 2 rounds since 2004.
When did Siperian last raise?
Siperian's most recent round was a Series E of $25M in Jan 2008.
What was Siperian's biggest round?
Its most recent round, $25M in Jan 2008, is also its largest on record.
Who backed Siperian first?
Siperian's first round on record, in Jun 2004, was backed by Reed Elsevier Ventures.
What stage is Siperian at?
Siperian's latest named round is a Series E, in Jan 2008.
Where is Siperian based?
Siperian is based in the United States.
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