Act Security
PrivateLast Round
Series A
Jul 28, 2026
Total Funding Raised
$100M
Momentum
Top 1%
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.
- Aug 22, 2026
Grew 64% QoQ, from 42 to 69 employees.
- Jul 28, 2026
Grew 16% QoQ from 43 to 50 employees.
Recent news
Latest coverage and updates
- launchesSep 2, 2026
Act Security Ltd. launched Amphi on Sep 2nd '26.
- receives_financingJul 28, 2026
Act Security Ltd. received financing of $40M in Series A on Jul 1st '25.
- receives_financingJul 28, 2026
Act Security Ltd. received financing of $20M in Seed on Jul 1st '25.
Act Security 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 Act Security's valuation, stock price, and market status.
Is Act Security a public or private company?
Act Security is a private company.
What is the current stock price of Act Security?
Act Security is a private company with no public stock price. No recent secondary market data is available.
How much is Act Security worth (valuation)?
Valuation information for Act Security is not publicly available.
Can I buy Act Security stock?
Act Security 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 Act Security's last funding round?
Act Security's most recent funding round was Series A on December 29, 2025.
Who are the main investors in Act Security?
Investor information for Act Security is not publicly disclosed.
Will Act Security IPO soon?
No public IPO plans have been announced for Act Security.
How can I track Act Security secondary market activity?
Caplight tracks bids, offers, and trades for private companies. Visit https://www.caplight.com to monitor Act Security's secondary market activity and sign up for updates.