Act Security
Actionable Cloud Risk-reduction for Security Teams
Startup A Cyber Security Est. 2025
🌐 WebsiteLinkedIn
Total Raised
$60M
A
Last Round
$40M
2 rounds
Investors
4
4 public
Team
4
11-50 employees
Confidence
64/100
News
2
articles
About
Act Security is developing a platform for securing cloud infrastructure and data centers.
Classification
Sector
Cyber SecurityCloud Security
Target Customer
Enterprise & Professional ServicesITData CentersEnterprises
Business Model
B2B
Funding & Events
Dec 2025
A Round $40M
Notable Capital (Lead), Hetz Ventures, Team8, Bessemer Venture Partners
Aug 2025
Seed $20M
Bessemer Venture Partners, Team8, Hetz Ventures
News (2)
Dec 29, 2025 · www.calcalistech.com
growth-positive
Act Security closes a rapid Series A only four months after a $20 million Seed round.
Investment
Aug 10, 2025 · www.calcalistech.com
growth-positive
After $400M exit, Medigate’s founders launch new cybersecurity startup | CTech
InvestmentManagement Changes
Details
Product Stage
R&D
Employees
11-50
Exact Count
30
Founded
2025
Registrar
517198537
Locations
Israel
Links
Website
act.security/
LinkedIn
Profile
Admin
Last Update
Dec 29, 2025
Verified by
Yanina Wainscheinker
Claimed
Yes
Missing
sector, tags, description, video or image, markets, not claimed
Team (4)
Jonathan Langer
Co-founder & CEO
Founder
Stephan Goldberg
Co-founder & CPO
Founder
Itay Kirshenbaum
Co-founder & CTO
Founder
Ilai Fallach
Co-founder & VP R&D
Founder
Internal
Created by
Matan Eblagon (matane@sncentral.org)
Created
2025-08-10T00:00:00.000Z
Finder · Act Security · 2026