
Medigate founders’ new cyber startup hits $60 million in funding months after launch
Act Security closes a rapid Series A only four months after a $20 million Seed round.
Israeli cyber companies continue to raise significant sums, even in their first months of operation. Calcalist has learned that Act Security, founded by the team behind Medigate, has raised $40 million in a Series A round just four months after completing a $20 million Seed round, bringing the company’s total funding since inception to $60 million.
Act Security is developing a platform for securing cloud infrastructure and data centers and currently employs 30 people. The latest round was led by U.S.-based Notable Capital, with participation from Startpoint Capital, a new fund led by Sharin Fisher Dibrov, Claltech, Access's technology investment arm in Israel, as well as existing investors that led the Seed round, including Bessemer Venture Partners, Team8, Hetz Ventures, and Brightmind. The company’s Seed round was first revealed by Calcalist in August.
Act Security was founded by Jonathan Langer (CEO), Itay Kirshenbaum (Chief Technology Officer), Stephen Goldberg (Chief Product Officer), and Ilai Fallach (Chief R&D Officer). Langer and Kirshenbaum previously co-founded Medigate, a medical device security and management startup, in 2017, with Goldberg joining as one of its first employees. Medigate was acquired in 2021 by Claroty for approximately $400 million.
Medigate developed a dedicated cybersecurity platform for medical devices, the Internet of Medical Things (IoMT), used in hospitals and healthcare institutions. Its technology addressed a specific challenge: medical devices such as monitors, CT scanners, and infusion pumps are often connected to hospital networks but are not adequately protected by generic security solutions.














