United States · 
Who invested in PromptLayer?
PromptLayer's investors include Gokul Rajaram.
United States · Seed startup
Who invested in PromptLayer
Funding summaryUpdated 26 Oct 2026
$4.8Mraised across 1 round since 2025, from 1 source
- Latest round
- Seed, $4.8MFeb 2025
- Investors
- 1
The rounds
- Feb 2025
Founders and team
From PromptLayer's own website: 3 on the team.
- John GilmoreVP of Operations at ParentLab
- Seung Jae ChaAI Product Lead at Speak
- Victor DuprezDirector of Engineering at Gorgias
Also claim to have backed them
This firm lists PromptLayer 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 PromptLayer
How much has PromptLayer raised?
PromptLayer has raised $4.8M across 1 round since 2025.
When did PromptLayer last raise?
PromptLayer's most recent round was a Seed of $4.8M in Feb 2025.
What was PromptLayer's biggest round?
Its most recent round, $4.8M in Feb 2025, is also its largest on record.
Who backed PromptLayer first?
PromptLayer's first round on record, in Feb 2025, was backed by Gokul Rajaram.
What stage is PromptLayer at?
PromptLayer's latest named round is a Seed, in Feb 2025.
Where is PromptLayer based?
PromptLayer is based in the United States.
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