One-year-old Sola Security raises $35M as Microsoft and S32 bet on DIY cyber defense

Sola Security, which developed an AI platform for cybersecurity teams, has raised $35 million in a Series A round. The round was led by existing investor S32 and joined by M12, Microsoft’s Venture Fund, and New Era Capital Partners. All existing investors, including venture capitalist Mike Moritz, S Capital, and Glilot Capital Partners joined the round as well.

Full list of Israeli high-tech funding rounds in 2025

This round follows a $30 million Seed round held last year, bringing the company’s total funding to $65 million. According to the company, funds from the previous Seed round have not yet been exhausted, but the main motivation for the new raise was Microsoft’s entry as an investor. As part of the deal, Sola signed a cooperation agreement with Microsoft to advance its new approach of providing tools for developing and building agents for end users, rather than selling ready-made software.

This strategy highlights Sola’s distinction from other cybersecurity firms that typically build AI-based protection tools against AI-driven threats. “We turn the tables, we don’t just add an AI layer on top of an existing cyber product. Instead, we provide security teams with the tools to develop the specific protection solutions they need,” explained Guy Flechter, co-founder and CEO of Sola, in an interview with Calcalist. The company’s platform enables security teams to use AI to build custom cyber solutions and agents tailored to their organizational needs. Flechter added that his ambition is to redefine the way security challenges are addressed, in the same way companies like Figma, Canva, and Stripe transformed their respective industries.

Sola Security was founded in 2024 by Flechter, who previously founded Cider Security, acquired by Palo Alto Networks for $300 million, together with Ron Peled, former global CISO at LivePerson and a strategic advisor to cybersecurity startups. The company currently employs 47 people. Since launching its product about six months ago, Sola has gained more than 2,000 users, who have already built over 1,000 AI-powered applications and agents for cybersecurity. These cover domains such as identity management, cloud security, configuration management, and compliance with regulations and international standards.