United States · Funded startup
9 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
$221Mraised across 9 rounds since 2010, from 9 sources
Each circle is a round, placed by date and sized by amount. The line above is the running total.
Google Ventures
Kleiner Perkins Caufield & Byers
Foundation Capital
Fujitsu LimitedFrom a historical funding recordSEC filing: $40M sold, first sale Jun 2015
No investor was named in the report.
From a historical funding recordSEC filing: $10M sold, first sale Oct 2014
No investor was named in the report.
From a historical funding recordSEC filing: $26M sold, first sale Dec 2013
No investor was named in the report.
From a historical funding recordSEC filing: $15M sold, first sale Feb 2014
Reported by techcrunch.comSEC filing: $35M sold, first sale Oct 2012
From a historical funding recordSEC filing: $31M sold, first sale Jun 2011
Reported by finsmes.comSEC filing: $25M sold, first sale Jun 2011
Reported by techcrunch.comSEC filing: $420K sold, first sale Nov 2010
No investor was named in the report.
Reported by sec.govSEC filing: $20M sold, first sale Apr 2010
The busiest backers across the latest rounds. A filled square is a round they joined; a dark one, a round they led.
Google VenturesKleiner Perkins Caufield & ByersFoundation Capital
Lux Capital
Bright CapitalKKR & Co. (Kohlberg Kravis Roberts & Co.)Innovation Network Corporation Of JapanFujitsu LimitedNihon Inter Electronics CompanyMissing a round, or an investor who was in one? Tell us.
This firm lists Transphorm 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.
Transphorm's investors include Google Ventures, Kleiner Perkins Caufield & Byers, Foundation Capital, Lux Capital and Bright Capital, and 4 more on record.
Transphorm has raised $221M across 9 rounds since 2010. One round did not disclose an amount, so the total is a floor.
Transphorm's most recent round was an Undisclosed round of $70M in Jun 2015.
Its most recent round, $70M in Jun 2015, is also its largest on record.
Transphorm's first round on record, in Feb 2011, was backed by Google Ventures, Kleiner Perkins Caufield & Byers and Foundation Capital and 1 others.
Transphorm's latest named round is an Undisclosed round, in Jun 2015.
Transphorm is based in the United States.
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United States · 