United States · Growth startup
Funding summaryUpdated 26 Oct 2026
$86Mraised 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.
Intel Capital
Polaris Partners
Madrona Venture Group
ARCH Venture Partners
GF Private Equity GroupReported by finsmes.comSEC filing: $22M sold, first sale Jul 2012
No investor was named in the report.
From a historical funding recordSEC filing: $5.8M sold, first sale Jun 2010
Samsung VenturesFrom a historical funding record
From the SEC filings it signed: 5 on the team.
On the board, as filediAlbert YuClinton BybeeGregory SesslerMark MacKenzieStephen ArnoldTom Alberg
The busiest backers across the latest rounds. A filled square is a round they joined; a dark one, a round they led.
Polaris PartnersMadrona Venture GroupARCH Venture PartnersMobius Venture CapitalGF Private Equity Group
Unilever VenturesVentureTech AllianceAllianceBernstein
UPS Strategic Enterprise FundViterbi GroupMissing a round, or an investor who was in one? Tell us.
Impinj's investors include Polaris Partners, Madrona Venture Group, ARCH Venture Partners, Mobius Venture Capital and GF Private Equity Group, and 11 more on record.
Impinj has raised $86M across 5 rounds since 2005.
Impinj's most recent round was a Growth of $21M in Jul 2012.
Impinj's largest round on record is $27M (Venture), in Dec 2005.
Impinj's first round on record, in Dec 2005, was backed by Polaris Partners, Madrona Venture Group and ARCH Venture Partners and 6 others.
Impinj's latest named round is a Growth, in Jul 2012.
Impinj is based in the United States.
In the same sector, and raised in the last eighteen months.
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