United States · Venture startup
5 rounds we have observed, with the 11 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
$52Mraised 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.
No investor was named in the report.
Reported by sec.govSEC filing: $1.0M sold, first sale Dec 2010
From a historical funding record
Menlo Ventures
Alta Partners
Industry Ventures
Court Square Ventures
Tall Oaks Ventures LLCFrom a historical funding record
Alta PartnersIndustry VenturesCourt Square VenturesTall Oaks Ventures LLCFrom 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.
Alta PartnersMenlo Venturese.venturesIndustry VenturesCourt Square VenturesTall Oaks Ventures LLCGuide Associates, LLC
e.ventures
JK&B CapitalVisa International Service AssociationFrom historical deal records. Wrong? Tell us.
Missing a round, or an investor who was in one? Tell us.
nCircle Network Security's investors include Alta Partners, Menlo Ventures, e.ventures, Industry Ventures and Court Square Ventures, and 6 more on record.
nCircle Network Security has raised $52M across 5 rounds since 2001.
nCircle Network Security's most recent round was a Venture of $1.0M in Dec 2010.
nCircle Network Security's largest round on record is $20M (Series C), in Oct 2002.
nCircle Network Security's first round on record, in Aug 2001, was backed by Alta Partners, Industry Ventures and e.ventures and 4 others.
nCircle Network Security's latest named round is a Venture, in Dec 2010.
nCircle Network Security is based in the United States.
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