Last updated 2026-06-18
- Raised $40M funding round led by Notable Capital, Dec 2025
- Raised $20M funding round, Aug 2025
Total raised
$60.0M
Last: 2025-12
Stage
Series A
Founded
2025
Headcount
30
HQ
Israel
Sector
Cyber Security
About
Act Security is developing a platform for securing cloud infrastructure and data centers.
Funding history · 2 rounds · $60.0M total
2025-12
2025-08
Q&A
- What is Act Security's primary focus?
- Act Security is developing a platform for securing cloud infrastructure and data centers, with a one-liner describing their focus as "Actionable Cloud Risk-reduction for Security Teams."
- When was Act Security founded?
- Act Security was founded in August 2025.
- How much funding has Act Security raised to date?
- Act Security has raised a total of $60,000,000 USD.
- Who were the investors in Act Security's August 2025 funding round?
- In August 2025, Act Security received funding from Bessemer Venture Partners, Team8, and Hetz Ventures.
- Which investors participated in Act Security's December 2025 funding round?
- In December 2025, Act Security secured funding with.
- What is Act Security's current funding stage?
- Act Security is currently in its Series A funding stage.
- How many employees does Act Security have?
- Act Security has 11-50 employees.
- Who are the co-founders of Act Security?
- The co-founders of Act Security are Jonathan Langer (Co-founder & CEO), Stephan Goldberg (Co-founder & CPO), Itay Kirshenbaum (Co-founder & CTO), and Ilai Fallach (Co-founder & VP R&D).
Team · 4
Sectors & technology
Primary sector
Cyber Security
Sub-sectors
Cyber SecurityCloud Security
Target customers
Enterprise & Professional ServicesITData CentersEnterprises
Business model
B2B
Highlights
Verified
Full data — links, identifiers, deals & radar signals (jobs, patents, research, more)
External links
| Website | act.security/ |
|---|---|
| linkedin.com/company/109978839/ |
Identifiers & details
| Founded | 2025-8 |
|---|---|
| Employees (exact) | 30 |
Radar intelligence
Open jobs — personio
| Total open | 3 |
|---|---|
| Remote | 0 |
| By location | Remote (1), München (2) |
| Title | Location | Department |
|---|---|---|
| Initiativbewerbung (Festanstellung) | Remote | |
| Social Media (Werkstudent) | München | |
| SEO Marketing Manager | München |
Patents
| EPO | 5 |
|---|
Web history (Wayback)
| Domain | act.security |
|---|
Certificate / subdomain footprint
| Subdomains | 23 |
|---|