United States · 
Who invested in Windspire Energy?
Windspire Energy's investors include Greenhouse Capital Partners, Sierra Angels, Big Sky Partners, Keiretsu Forum and Noventi.
2009
$750KSeed$500KSeries A?Series B
United States · Series B startup
Who invested in Windspire Energy
Funding summaryUpdated 26 Oct 2026
$1.3Mraised across 3 rounds since 2008, from 3 sources
$750KSeed$500KSeries A
- Latest round
- Series BDec 2008
- Biggest round
- $750KSeed · Feb 2008
- 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
- Seed, $750K Feb 2008
- Biggest round
- $750K Seed · Feb 2008
- Usual gap between rounds
- 8 months the median of 2
The rounds
- Dec 2008Series BAmount undisclosed1 new3 returning
Reported by mariahpower.com
- Apr 2008
- Feb 2008
Founders and team
From the SEC filings it signed: 3 on the team.
- Glenn CarnahanExecutive Officeri
- Mick HansenExecutive Officeri
- Walter BorlandExecutive Officer, Directori
On the board, as filediGiacomo MariniIan RogoffJames HornPete Henig
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.
Seed2008Series A2008Series B2008
Greenhouse Capital Partners
Sierra Angels
Big Sky Partners
Keiretsu Forum
Noventi
Greenhouse Capital PartnersSierra AngelsBig Sky PartnersKeiretsu ForumNoventiEveryone who backed them
Missing a round, or an investor who was in one? Tell us.
Also claim to have backed them
This firm lists Windspire Energy as a portfolio company on their own website, but no report of a round names it. They are the firms' own claims, kept apart from the rounds above.
Quick answers about Windspire Energy
How much has Windspire Energy raised?
Windspire Energy has raised $1.3M across 3 rounds since 2008. One round did not disclose an amount, so the total is a floor.
When did Windspire Energy last raise?
Windspire Energy's most recent round was a Series B in Dec 2008.
What was Windspire Energy's biggest round?
Windspire Energy's largest round on record is $750K (Seed), in Feb 2008.
Who backed Windspire Energy first?
Windspire Energy's first round on record, in Feb 2008, was backed by Keiretsu Forum and Sierra Angels.
What stage is Windspire Energy at?
Windspire Energy's latest named round is a Series B, in Dec 2008.
Where is Windspire Energy based?
Windspire Energy is based in the United States.
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