Who invested in Imperva?
Imperva's investors include Venrock, Accel, Greylock, U.S. Venture Partners and Meritech Capital Partners.

United States · Series D startup
3 rounds we have observed, with the 5 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 15 Nov 2026
$49Mraised across 3 rounds since 2003, from 3 sources
Each circle is a round, placed by date and sized by amount. The line above is the running total.
Reported by venturebeat.com
From Imperva's own website: 10 on the team.
The busiest backers across the latest rounds. A filled square is a round they joined; a dark one, a round they led.
Imperva's investors include Venrock, Accel, Greylock, U.S. Venture Partners and Meritech Capital Partners.
Imperva has raised $49M across 3 rounds since 2003.
Imperva's most recent round was a Series D of $20M in Apr 2008.
Its most recent round, $20M in Apr 2008, is also its largest on record.
Imperva's first round on record, in Jun 2003, was backed by Venrock.
Imperva's latest named round is a Series D, in Apr 2008.
Imperva is based in the United States.
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