Company Overview
Snapshot
Founded in August 2025 by Jonathan Langer, Stephan Goldberg, Itay Kirshenbaum, and Ilai Fallach, Act Security operates with 11–50 employees. The company has raised $60M across two funding rounds from seven investors, with Notable Capital leading a December 2025 Series A round.
Business overview
Act Security develops a platform designed to secure cloud infrastructure and data centers. The company's core technology focuses on eliminating access pathways that can be exploited by AI-powered attacks, providing actionable risk reduction for security teams. It primarily serves enterprise clients within the IT and data center sectors, operating within the broader Cyber Security and Cloud Security markets.
Strategic signal
In July 2026, Act Security officially launched its cloud security platform, following a $60M funding raise. This launch signals the company's readiness to address agentic access sprawl at the infrastructure layer, a critical and evolving challenge in cloud security, particularly with the rise of AI-powered threats. For investors, this indicates a significant step from development to market entry with a validated funding base.
Log in to access full profile ›Company Intelligence Q&A
- When was Act Security founded and by whom?
- Act Security was founded in August 2025 by Jonathan Langer, Stephan Goldberg, Itay Kirshenbaum, and Ilai Fallach.
- What is Act Security's primary focus in the cybersecurity market?
- Act Security focuses on developing a platform for securing cloud infrastructure and data centers, specifically targeting the reduction of agentic access sprawl at the infrastructure layer to counter AI-powered attacks.
- Which investors participated in Act Security's December 2025 Series A funding round?
- In December 2025, Act Security closed a Series A round with participation from.
- What was a key development for Act Security in July 2026?
- In July 2026, Act Security officially launched its cloud security platform, designed to combat agentic access sprawl at the infrastructure layer, coinciding with a $60M funding announcement.
- Which investors led Act Security's Seed funding round in August 2025?
- Act Security's Seed funding round in August 2025 was led by Bessemer Venture Partners and Team8.