United States · Venture startup
7 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
$60Mraised across 7 rounds since 2007, from 7 sources
Each circle is a round, placed by date and sized by amount. The line above is the running total.
Mayfield Fund
IDG Ventures
Clearstone Venture Partners
News Corp.
IDG Ventures VietnamReported by businesswire.com
Reported by paidcontent.org
Reported by therubiconproject.com
Reported by sociableblog.com
The busiest backers across the latest rounds. A filled square is a round they joined; a dark one, a round they led.
Clearstone Venture PartnersMayfield FundIDG Ventures VietnamPeacock Equity
SVB CapitalIDG Ventures
Square 1 BankStanford University
Matt CoffinJarl MohnMissing a round, or an investor who was in one? Tell us.
This firm lists Rubicon Project 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.
Rubicon Project's investors include Clearstone Venture Partners, Mayfield Fund, IDG Ventures Vietnam, Peacock Equity and SVB Capital, and 6 more on record.
Rubicon Project has raised $60M across 7 rounds since 2007.
Rubicon Project's most recent round was a Venture of $18M in Nov 2010.
Its most recent round, $18M in Nov 2010, is also its largest on record.
Rubicon Project's first round on record, in Oct 2007, was backed by Square 1 Bank.
Rubicon Project's latest named round is a Venture, in Nov 2010.
Rubicon Project is based in the United States.
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United States · 