United States · 
Who invested in PromptArmor?
PromptArmor's investors include Y Combinator and Liquid 2 Ventures.
United States · Seed startup
Who invested in PromptArmor
Funding summaryUpdated 26 Oct 2026
$3.2Mraised across 1 round since 2024, from 1 source
- Latest round
- Seed, $3.2MApr 2024
- Investors
- 2
The rounds
- Apr 2024
Everyone who backed them
Missing a round, or an investor who was in one? Tell us.
Also claim to have backed them
This firm lists PromptArmor 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 PromptArmor
How much has PromptArmor raised?
PromptArmor has raised $3.2M across 1 round since 2024.
When did PromptArmor last raise?
PromptArmor's most recent round was a Seed of $3.2M in Apr 2024.
What was PromptArmor's biggest round?
Its most recent round, $3.2M in Apr 2024, is also its largest on record.
Who backed PromptArmor first?
PromptArmor's first round on record, in Apr 2024, was backed by Y Combinator and Liquid 2 Ventures.
What stage is PromptArmor at?
PromptArmor's latest named round is a Seed, in Apr 2024.
Where is PromptArmor based?
PromptArmor is based in the United States.
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