Act Security

Actionable Cloud Risk-reduction for Security Teams

Startup

Act Security is a startup in the Cyber Security sector, established in 2025. Actionable Cloud Risk-reduction for Security Teams. The company has raised a total of $60M across 2 funding rounds, currently at the A stage. Act Security was founded by Jonathan Langer, Stephan Goldberg, Itay Kirshenbaum, Ilai Fallach. Key investors include Notable Capital, Hetz Ventures, Team8, among 4 total investors. The company has 11-50 employees.

With $60M in total funding, Act Security is a A-stage company operating in Cyber Security. The company follows a B2B business model. Product stage: R&D.

$60M
Raised
2
Rounds
4
Investors
4
Team
2025
Founded
Sector & Technology
Cyber SecurityCloud Security
At a Glance
Investors

4 investors total

Founders
In the News

2 articles covered by sources including www.calcalistech.com.

www.calcalistech.com · Dec 29, 2025
Act Security closes a rapid Series A only four months after a $20 million Seed round.
Read article ↗
Frequently Asked Questions
What does Act Security do?

Act Security is developing a platform for securing cloud infrastructure and data centers.

How much funding has Act Security raised?

Act Security has raised $60M in total funding across 2 rounds. The company is currently at the A stage. Key investors include Notable Capital, Hetz Ventures, Team8.

Who founded Act Security?

Act Security was founded in 2025 by Jonathan Langer (Co-founder & CEO), Stephan Goldberg (Co-founder & CPO), Itay Kirshenbaum (Co-founder & CTO), Ilai Fallach (Co-founder & VP R&D).

What sector is Act Security in?

Act Security operates in Cyber Security, Cloud Security. Target customers: Enterprise & Professional Services, IT, Data Centers, Enterprises.

Where is Act Security located?

Act Security is based in Israel.

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