Who invested in SirenOpt?
SirenOpt's investors include Berkeley SkyDeck, Hitachi Ventures and Voyager Ventures.

United States · Venture startup
Funding summaryUpdated 26 Oct 2026
$19Mraised across 1 round since 2026, from 1 source
From SirenOpt's own website: 3 founders, 7 on the team.
AdvisersKenzo Nagai
SirenOpt's investors include Berkeley SkyDeck, Hitachi Ventures and Voyager Ventures.
SirenOpt has raised $19M across 1 round since 2026.
SirenOpt's most recent round was a Venture of $19M in Sept 2026.
Its most recent round, $19M in Sept 2026, is also its largest on record.
SirenOpt's first round on record, in Sept 2026, was backed by Berkeley SkyDeck, Hitachi Ventures and Voyager Ventures.
SirenOpt's latest named round is a Venture, in Sept 2026.
SirenOpt is based in the United States.
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