Act Security
PrivateLast Round
Series A
Jul 28, 2026
Total Funding Raised
$100M
Momentum
Top 5%
of companies Caplight tracks
Company Overview
Act Security is a cybersecurity company that develops a platform for securing cloud infrastructure and data centers.
Sector
Cybersecurity
Verticals
Cloud Security, Identity & Access, DevOps & Containers, Zero Trust, Application Security
Business Model
B2B
Customer Profile
Subscription SaaS
AI Layer
Application
Keywords
Historical Pricing
Historical view of private secondary pricing and transaction trends.
Act Security Comparables
Compare Act Security with similar companies based on industry and business-model similarity.
| Company | Similarity | Market Cap |
|---|---|---|
| Blast Security | 88% | |
77% | ||
| Sweet Security | 76% | |
Act Security Funding Rounds
Historical fundraising activity
| Round | Date | Amount Raised | Valuation | Investors | Sources |
|---|---|---|---|---|---|
| Series A | Jul 28, 2026 | ||||
| Series A | Dec 29, 2025 | ||||
| Seed | Aug 10, 2025 |
Key People
Founding team and executive leadership
Act Security Investors
Notable investors and investment history
| Investor | Rounds |
|---|---|
| Team8 | Series A |
| Notable Capital | Series A |
| Silicon Valley CISO Investments | Series A |
| Hetz Ventures | Series A |
| Brightmind Partners | Series A |
| Lux Capital | Series A |
| Bessemer Venture Partners | Series A |
Market signals
Structured signals derived from secondary market and firmographic data.
- Jul 28, 2026
$40M round led by Notable Capital
- May 22, 2026
Grew 40% QoQ, from 30 to 42 employees.
Act Security Filings
SEC and related filings with document metadata.
| Typed | Date | Amount Offered | Amount Sold | Filling | Pages | Download |
|---|---|---|---|---|---|---|
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Frequently Asked Questions
Common questions about Act Security's valuation, stock price, and market status.