21st.dev
PrivateLast Round
Accelerator
Mar 16, 2026
Total Funding Raised
$1M
Momentum
Top 25%
of companies Caplight tracks
Company Overview
21st.dev is a software development applications company that provides an infrastructure and UI component registry for building and deploying AI agents.
Sector
Enterprise Software
Verticals
DevOps & Containers, Low-Code/No-Code
Business Model
B2B
Customer Profile
Subscription SaaS, Freemium
AI Layer
Application
Keywords
Historical Pricing
Historical view of private secondary pricing and transaction trends.
21st.dev Comps
Public and private peers based on sector, stage, and business model.
| Company | Status | Est. Valuation | Rev Multiple |
|---|---|---|---|
| OpenAI | Private | $86.0B | ~40x |
| Cohere | Private | $5.0B | -- |
| Competitor 1 | Public | $XX.XB | XXx |
| Competitor 2 | Public | $XX.XB | XXx |
21st.dev Funding Rounds
Historical fundraising activity
| Round | Date | Amount Raised | Valuation | Investors | Sources |
|---|---|---|---|---|---|
| Accelerator | Mar 16, 2026 | ||||
| Accelerator | Jan 1, 2026 |
Key People
Founding team and executive leadership
21st.dev Investors
Notable investors and investment history
| Investor | Rounds |
|---|---|
| Pioneer Fund | Accelerator |
| Transpose Platform Management | Accelerator |
| Aloniq | Accelerator |
| AAL VC | Accelerator |
| Y Combinator | Accelerator |
| Hustle Fund | Accelerator |
Market signals
Structured signals derived from secondary market and firmographic data.
- Apr 18, 2026
Monthly visitors increased 123% MoM, reaching 1.7 million.
21st.dev 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 |
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Frequently Asked Questions
Common questions about 21st.dev's valuation, stock price, and market status.