United States · Funded startup
5 rounds we have observed, with the 7 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
$41Mraised across 5 rounds since 2001, from 5 sources
Each circle is a round, placed by date and sized by amount. The line above is the running total.
Reported by iwatt.com
From a historical funding record
The busiest backers across the latest rounds. A filled square is a round they joined; a dark one, a round they led.
Sigma Partners
Horizons Ventures
VantagePoint Capital PartnersPTI Alliance
Hercules CapitalHorizon Venture
ESO FundFrom historical deal records. Wrong? Tell us.
Missing a round, or an investor who was in one? Tell us.
iWatt's investors include Sigma Partners, Horizons Ventures, VantagePoint Capital Partners, PTI Alliance and Hercules Capital, and 2 more on record.
iWatt has raised $41M across 5 rounds since 2001. One round did not disclose an amount, so the total is a floor.
iWatt's most recent round was a Secondary in Mar 2013.
iWatt's largest round on record is $15M (Series B), in Mar 2003.
iWatt's first round on record, in Sept 2001, was backed by Sigma Partners, Horizons Ventures and PTI Alliance.
iWatt's latest named round is a Secondary, in Mar 2013.
iWatt is based in the United States.
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United States ·