Who invested in PowerInbox?
PowerInbox's investors include Correlation Ventures, Atlas Venture, Longworth Venture Partners, Battery Ventures and Founder Collective, and 13 more on record.
United States · Series A startup
3 rounds we have observed, with the 18 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
$12Mraised across 3 rounds since 2011, from 3 sources
Each circle is a round, placed by date and sized by amount. The line above is the running total.
Reported by techcrunch.com
Reported by finsmes.com
The busiest backers across the latest rounds. A filled square is a round they joined; a dark one, a round they led.
PowerInbox's investors include Correlation Ventures, Atlas Venture, Longworth Venture Partners, Battery Ventures and Founder Collective, and 13 more on record.
PowerInbox has raised $12M across 3 rounds since 2011.
PowerInbox's most recent round was a Series A of $10M in Nov 2012.
Its most recent round, $10M in Nov 2012, is also its largest on record.
PowerInbox's first round on record, in Aug 2011, was backed by Founder Collective, Atlas Venture and Correlation Ventures and 13 others.
PowerInbox's latest named round is a Series A, in Nov 2012.
PowerInbox is based in the United States.
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