United States · 
Who invested in Sero?
Sero's investors include Y Combinator.
United States · Pre-seed startup
Who invested in Sero
Funding summaryUpdated 26 Oct 2026
$500Kraised across 1 round since 2022, from 1 source
- Latest round
- Pre-seed, $500KJan 2022
- Investors
- 1
The rounds
- Jan 2022
Everyone who backed them
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Quick answers about Sero
How much has Sero raised?
Sero has raised $500K across 1 round since 2022.
When did Sero last raise?
Sero's most recent round was a Pre-seed of $500K in Jan 2022.
What was Sero's biggest round?
Its most recent round, $500K in Jan 2022, is also its largest on record.
Who backed Sero first?
Sero's first round on record, in Jan 2022, was backed by Y Combinator.
What stage is Sero at?
Sero's latest named round is a Pre-seed, in Jan 2022.
Where is Sero based?
Sero is based in the United States.
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