United States · Series C startup
4 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
$26Mraised across 4 rounds since 2004, from 4 sources
Each circle is a round, placed by date and sized by amount. The line above is the running total.
Hummer Winblad Venture Partners
Converge VC
Longworth Venture PartnersFrom a historical funding record
Hummer Winblad Venture PartnersLongworth Venture PartnersReported by wires.vlex.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.
Hummer Winblad Venture PartnersConverge VCLongworth Venture PartnersMasthead Venture PartnersCommon AngelsMV PartnersFrom historical deal records. Wrong? Tell us.
Missing a round, or an investor who was in one? Tell us.
Tizor Systems's investors include Navigator Technology Ventures, Hummer Winblad Venture Partners, Converge VC, Longworth Venture Partners and Masthead Venture Partners, and 2 more on record.
Tizor Systems has raised $26M across 4 rounds since 2004.
Tizor Systems's most recent round was a Series C of $8.3M in Feb 2008.
Tizor Systems's largest round on record is $12M (Series B), in Sept 2005.
Tizor Systems's first round on record, in Sept 2004, was backed by Converge VC, Navigator Technology Ventures and Masthead Venture Partners.
Tizor Systems's latest named round is a Series C, in Feb 2008.
Tizor Systems is based in the United States.
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United States ·