PromptLayer
PrivateLast Round
Seed
Feb 9, 2025
Total Funding Raised
$4.8M
Momentum
Top 25%
of companies Caplight tracks
Company Overview
PromptLayer is a business/productivity software company that provides a platform for prompt engineers to track, debug, and collaborate on LLM requests.
Sector
AI, Data & Cloud Infrastructure
Verticals
ML Platforms, NLP & Conversational AI, API Management
Business Model
B2B
Customer Profile
Subscription SaaS, Usage-Based SaaS
AI Layer
Infrastructure
Keywords
Historical Pricing
Historical view of private secondary pricing and transaction trends.
PromptLayer Comparables
Compare PromptLayer with similar companies based on industry and business-model similarity.
| Company | Similarity | Market Cap |
|---|---|---|
| Humanloop | 91% | |
| HoneyHive | 90% | |
| Athina AI | 90% | |
PromptLayer Funding Rounds
Historical fundraising activity
| Round | Date | Amount Raised | Valuation | Investors | Sources |
|---|---|---|---|---|---|
| Seed | Feb 9, 2025 |
Key People
Founding team and executive leadership
PromptLayer Investors
Notable investors and investment history
| Investor | Rounds |
|---|---|
| Stellation Capital | Seed |
| Thales Partners - Consultoria de Investimentos | Seed |
| ScOp Venture Capital | Seed |
| Verissimo Ventures | Seed |
Market signals
Structured signals derived from secondary market and firmographic data.
- Mar 26, 2026
Added Gertner, a technology/AI startup, as a customer.
- Mar 26, 2026
Added Speak Ai Inc., a technology/AI startup, as a customer.
PromptLayer Filings
SEC and related filings with document metadata.
| Typed | Date | Amount Offered | Amount Sold | Filling | Pages | Download |
|---|---|---|---|---|---|---|
Mock Valuation | Sign Up to view | Mock Valuation | Sign Up to view | Mock Valuation | Sign Up to view | Mock Valuation |
Mock Valuation | Sign Up to view | Mock Valuation | Sign Up to view | Mock Valuation | Sign Up to view | Mock Valuation |
Mock Valuation | Sign Up to view | Mock Valuation | Sign Up to view | Mock Valuation | Sign Up to view | Mock Valuation |
Mock Valuation | Sign Up to view | Mock Valuation | Sign Up to view | Mock Valuation | Sign Up to view | Mock Valuation |
Frequently Asked Questions
Common questions about PromptLayer's valuation, stock price, and market status.