United States · 
Who invested in ZeroDown?
ZeroDown's investors include Goodwater Capital and Sam Altman.
United States · Funded startup
Who invested in ZeroDown
Funding summaryUpdated 26 Oct 2026
$30Mraised across 1 round since 2019, from 1 source
- Latest round
- Round, $30MJun 2019
- Investors
- 2
The rounds
- Jun 2019
Founders and team
From ZeroDown's own website: 3 founders, 1 on the team.
Everyone who backed them
Sam AltmanAngel1round
Missing a round, or an investor who was in one? Tell us.
Also claim to have backed them
This firm lists ZeroDown as a portfolio company on their own website, but no report of a round names it. They are the firms' own claims, kept apart from the rounds above.
Quick answers about ZeroDown
How much has ZeroDown raised?
ZeroDown has raised $30M across 1 round since 2019.
When did ZeroDown last raise?
ZeroDown's most recent round was an Undisclosed round of $30M in Jun 2019.
What was ZeroDown's biggest round?
Its most recent round, $30M in Jun 2019, is also its largest on record.
Who backed ZeroDown first?
ZeroDown's first round on record, in Jun 2019, was backed by Goodwater Capital and Sam Altman.
What stage is ZeroDown at?
ZeroDown's latest named round is an Undisclosed round, in Jun 2019.
Where is ZeroDown based?
ZeroDown is based in the United States.
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In the same sector, and raised in the last eighteen months.
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