United States · 
Who invested in International Battery?
International Battery's investors include Digital Power Capital and Wexford Capital.
20092010
$25MVenture$35MSeries C
United States · Series C startup
Who invested in International Battery
Funding summaryUpdated 26 Oct 2026
$60Mraised across 2 rounds since 2008, from 2 sources
$25MVenture$35MSeries C
- Latest round
- Series C, $35MMay 2010
- Step-upi
- 1.4×
- Investors
- 2
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, $25M Dec 2008
- Biggest round
- $35M Series C · May 2010
- Between rounds
- 17 months from the last two
The rounds
- May 2010Series C$35M1 returning
Reported by altassets.comSEC filing: $2.8M sold, first sale Apr 2010
- Dec 2008
Founders and team
From the SEC filings it signed: 2 on the team.
- Ake AlmgrenDirector, Executive Officeri
- Robert JewettExecutive Officeri
On the board, as filediJack KeaneMark AscoleseMark MillsPeter GrossRodney SlaterThomas Schwartz
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.
Everyone who backed them
Digital Power CapitalInvestment firm2rounds
Missing a round, or an investor who was in one? Tell us.
Quick answers about International Battery
How much has International Battery raised?
International Battery has raised $60M across 2 rounds since 2008.
When did International Battery last raise?
International Battery's most recent round was a Series C of $35M in May 2010.
What was International Battery's biggest round?
Its most recent round, $35M in May 2010, is also its largest on record.
Who backed International Battery first?
International Battery's first round on record, in Dec 2008, was backed by Wexford Capital and Digital Power Capital.
What stage is International Battery at?
International Battery's latest named round is a Series C, in May 2010.
Where is International Battery based?
International Battery is based in the United States.
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