Cybersecurity startup Astelia has raised $25 million in its Series A funding round. The round was led by Index Ventures, with support from Team8 and Holly Ventures. The company has over 30 employees working in Israel and the United States.
Astelia builds a security exposure management platform that helps companies identify, prioritize, and reduce cyber risks more effectively.
The company was founded in late 2024 through Team8’s Venture Creation model. Team8 and Holly Ventures also led Astelia’s $10 million Seed funding round.
Astelia was founded by Alon Noy (CEO), Nadav Ostrovsky (CTO), and Roy Rajwan (CPO).
Noy is a Talpiot program graduate and spent about 15 years in the IDF, leading units in Unit 8200 and heading the National Red Team. Ostrovsky, also a Talpiot graduate, served in the IDF’s Matzov unit together with Rajwan.
Noy said that the software security landscape has been significantly reshaped by cloud computing and AI. “We focus on managing exposure across third-party systems and external infrastructure. We identify vulnerabilities in the broader attack surface, an area where I don’t see AI-native coding platforms fully addressing the challenge. The need for a system like ours is only intensifying.”
Astelia competes with companies such as Rapid7 and Tenable but argues that traditional vulnerability management platforms are not fully adapted to the AI era. “The number of vulnerabilities is enormous, and attackers’ ability to exploit them is greater than ever,” Noy said. “When I led red team operations, I wish we had these capabilities. We were often able to bypass large security vendors because they failed to identify AI-related weaknesses.”
He added that today’s threat landscape leaves little room for delay. “When a vulnerability is disclosed, attackers exploit it almost immediately. Organizations no longer have weeks to respond. Some companies have been breached simply because they failed to prioritize vulnerabilities properly, and they come to us after an incident.”
Astelia plans to use the new funding mainly to speed up its business growth in the United States and hire more staff there. At the same time, the company aims to double its R&D team in Israel—made up mostly of experts with experience like the National Red Team—by the end of the year, in preparation for a possible next funding round.
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