United States · Funded startup
5 rounds we have observed, with the 6 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.
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Funding summaryUpdated 31 Oct 2026
$39Mraised across 5 rounds since 2005, from 5 sources
Each circle is a round, placed by date and sized by amount. The line above is the running total.
Reported by masshightech.comSEC filing: $1.6M sold, first sale May 2012
No investor was named in the report.
Reported by sec.govSEC filing: $5.5M sold, first sale Apr 2010
Reported by xconomy.com
Reported by streambase.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.
Accel
Bessemer Venture Partners
Highland Capital Partners
In-Q-Tel
Battery Ventures
Horizon Technology FinanceFrom historical deal records. Wrong? Tell us.
Missing a round, or an investor who was in one? Tell us.
StreamBase Systems's investors include Accel, Bessemer Venture Partners, Highland Capital Partners, In-Q-Tel and Battery Ventures, and 1 more on record.
StreamBase Systems has raised $39M across 5 rounds since 2005.
StreamBase Systems's most recent round was a Debt of $1.5M in May 2012.
StreamBase Systems's largest round on record is $15M (Series C), in Jul 2007.
StreamBase Systems's first round on record, in Jan 2005, was backed by Accel, Bessemer Venture Partners and Highland Capital Partners.
StreamBase Systems's latest named round is a Debt, in May 2012.
StreamBase Systems is based in the United States.
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United States ·