United States · 
Who invested in Stack Auth?
Stack Auth's investors include Y Combinator.
United States · Pre-seed startup
Who invested in Stack Auth
Funding summaryUpdated 26 Oct 2026
$500Kraised across 1 round since 2024, from 1 source
- Latest round
- Pre-seed, $500KSept 2024
- Investors
- 1
The rounds
- Sept 2024
Everyone who backed them
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Quick answers about Stack Auth
How much has Stack Auth raised?
Stack Auth has raised $500K across 1 round since 2024.
When did Stack Auth last raise?
Stack Auth's most recent round was a Pre-seed of $500K in Sept 2024.
What was Stack Auth's biggest round?
Its most recent round, $500K in Sept 2024, is also its largest on record.
Who backed Stack Auth first?
Stack Auth's first round on record, in Sept 2024, was backed by Y Combinator.
What stage is Stack Auth at?
Stack Auth's latest named round is a Pre-seed, in Sept 2024.
Where is Stack Auth based?
Stack Auth is based in the United States.
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