HumanSignal
PrivateLast Round
Series A
May 18, 2022
Total Funding Raised
$30.15M
Momentum
Top 5%
of companies Caplight tracks
Company Overview
HumanSignal is a data technology company that provides an open-source data labeling platform and managed data services to help machine learning teams annotate, evaluate, and fine-tune AI models.
Sector
AI, Data & Cloud Infrastructure
Verticals
ML Platforms, AI Training Infrastructure, Computer Vision
Business Model
B2B
Customer Profile
Subscription SaaS, Services & Consulting, Freemium
AI Layer
Infrastructure
Keywords
Historical Pricing
Historical view of private secondary pricing and transaction trends.
HumanSignal Comparables
Compare HumanSignal with similar companies based on industry and business-model similarity.
| Company | Similarity | Market Cap |
|---|---|---|
| SuperAnnotate | 88% | |
| Datasaur | 86% | |
| Kili Technology | 86% |
HumanSignal Funding Rounds
Historical fundraising activity
| Round | Date | Amount Raised | Valuation | Investors | Sources |
|---|---|---|---|---|---|
| Series A | May 18, 2022 | ||||
| Seed | Oct 8, 2020 | ||||
| Accelerator | Jul 1, 2019 |
Key People
Founding team and executive leadership
HumanSignal Investors
Notable investors and investment history
| Investor | Rounds |
|---|---|
| 500 Global | Accelerator |
| Bow Capital | Series A, Seed |
| Redpoint Ventures | Series A |
| Swift Ventures | Series A, Seed |
| Unusual Ventures | Series A, Seed |
Market signals
Structured signals derived from secondary market and firmographic data.
- Aug 1, 2026
Grew 45% QoQ, from 88 to 128 employees.
- Jul 25, 2026
Monthly visitors grew 91% MoM, reaching 150.1K.
HumanSignal Filings
Explore SEC and related filing metadata, where available.
| Type | Date | Amount Offered | Amount Sold | Filing | Pages | Download |
|---|
Filing documents are not displayed on this public page. Request access to learn about available coverage.
Request accessFrequently Asked Questions
Common questions about HumanSignal's valuation, stock price, and market status.
Is HumanSignal a public or private company?
HumanSignal is a private company.
What is the current stock price of HumanSignal?
HumanSignal is a private company with no public stock price. No recent secondary market data is available.
How much is HumanSignal worth (valuation)?
Valuation information for HumanSignal is not publicly available.
Can I buy HumanSignal stock?
HumanSignal shares may be available on secondary markets subject to transfer restrictions. Caplight facilitates secondary market transactions for accredited investors. Visit https://www.caplight.com to learn more.
When was HumanSignal's last funding round?
HumanSignal's most recent funding round was Series A on May 18, 2022.
Who are the main investors in HumanSignal?
Key investors in HumanSignal include Redpoint Ventures.
Will HumanSignal IPO soon?
No public IPO plans have been announced for HumanSignal.
How can I track HumanSignal secondary market activity?
Caplight tracks bids, offers, and trades for private companies. Visit https://www.caplight.com to monitor HumanSignal's secondary market activity and sign up for updates.