United States · Funded startup
Funding summaryUpdated 26 Oct 2026
$144Mraised across 9 rounds since 2003, from 9 sources
Each circle is a round, placed by date and sized by amount. The line above is the running total.
From a historical funding recordSEC filing: $5.0M sold, first sale Feb 2015
No investor was named in the report.
From a historical funding recordSEC filing: $5.0M sold, first sale Feb 2015
No investor was named in the report.
Reported by sec.govSEC filing: $10M sold, first sale Nov 2012
Reported by venturebeat.comSEC filing: $10M sold, first sale Nov 2012
No investor was named in the report.
Reported by sec.govSEC filing: $773K sold, first sale Jul 2012
Intel Capital
Venrock
Polaris Partners
Lux Capital
ARCH Venture Partners
In-Q-Tel
Alexandria Real Estate Equities
Prospect Venture Partners
Masters Capital ManagementFrom a historical funding record
VenrockPolaris PartnersLux CapitalARCH Venture PartnersAlexandria Real Estate EquitiesProspect Venture Partners
SAIC Venture Capital
Quanta ComputerFrom 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.
VenrockARCH Venture PartnersPolaris PartnersLux CapitalAlexandria Real Estate EquitiesHarris & Harris GroupProspect Venture PartnersCDIB BioScience VenturesIntel Capital
US Department of EnergyMissing a round, or an investor who was in one? Tell us.
This firm lists Nanosys 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.
Nanosys's investors include Venrock, ARCH Venture Partners, Polaris Partners, Lux Capital and Alexandria Real Estate Equities, and 18 more on record.
Nanosys has raised $144M across 9 rounds since 2003. One round did not disclose an amount, so the total is a floor.
Nanosys's most recent round was an Undisclosed round in Jun 2015.
Nanosys's largest round on record is $42M (Series D), in Nov 2005.
Nanosys's first round on record, in Apr 2003, was backed by Venrock, Polaris Partners and Lux Capital and 10 others.
Nanosys's latest named round is an Undisclosed round, in Jun 2015.
Nanosys is based in the United States.
In the same sector, and raised in the last eighteen months.
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United States · 
