Who invested in Cumulus?
Cumulus's investors include Castor and Brick & Mortar Ventures/ Shell.

United States · Seed startup
Funding summaryUpdated 26 Oct 2026
$4.5Mraised across 1 round since 2018, from 1 source
From Cumulus's own website: 4 founders, 1 on the team.
Cumulus's investors include Castor and Brick & Mortar Ventures/ Shell.
Cumulus has raised $4.5M across 1 round since 2018.
Cumulus's most recent round was a Seed of $4.5M in Dec 2018.
Its most recent round, $4.5M in Dec 2018, is also its largest on record.
Cumulus's first round on record, in Dec 2018, was backed by Castor and Brick & Mortar Ventures/ Shell.
Cumulus's latest named round is a Seed, in Dec 2018.
Cumulus is based in the United States.
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