Cybersecurity startup WiseBee raises €2.1 million to bring autonomous cyber defense to mid-market companies

WiseBee, a US-Bulgarian cybersecurity startup building an on-demand, autonomous security team that monitors, detects, and neutralises threats, has raised €2.1 million in pre-Seed funding to accelerate development and deployment of its Agentic cyber risk mitigation platform.

The round was led by Frontline Ventures and BrightCap Ventures, with participation from a U.S.-based investment firm and angel investors with cybersecurity experience.

“Most cybersecurity tools are reactive, siloed, and designed for large enterprises with hefty budgets,” said CEO Stoyan Stoyanov. “We are building something fundamentally different: an autonomous system of security agents that detect and mitigate risks around the clock – 24/7.”

Founded in 2024 by Stoyan Stoyanov (CEO) and Taha Kazi (CDO), WiseBee is split between New York and Sofia and looks to flip the traditional cybersecurity model. Instead of just surfacing alerts, it reportedly fixes them using AI-powered remediation workflows, bringing enterprise-grade security to mid-sized organisations.

WiseBee serves mid-sized organisations (200–2,000 employees) in regulated sectors like finance, FinTech, healthcare, and digital identity, companies that face enterprise-level threats but lack the resources to manage them. The platform acts as the AI brain above the security stack, integrating threat intelligence, attack surface monitoring, and vendor risk into a single, autonomous system.

Stoyanov is a serial Founder with a track record in cybersecurity and building products for modern security teams. He previously led product at SecurityScorecard, where he helped the company scale beyond unicorn status. Kazi brings AI and data engineering experience from SecurityScorecard, Deloitte, and Amazon, with expertise in building intelligent automation tools for security teams.

According to WiseBee, they are securing critical environments in both public and private sectors:

• A global FinTech unicorn leverages the platform to streamline vendor risk and reduce time-to-action.
• A next-gen SpaceTech company uses WiseBee to protect a complex digital footprint across cloud and vendor ecosystems.
• A local US Government is using the platform to monitor vendors, assess third-party risk, and resolve vulnerabilities automatically.
• A Bulgarian bank and a pan-European FinTech provider, both DORA-regulated institutions, use WiseBee for proactive attack surface management.

“AI brings huge benefits but also new security threats, from rogue agents to unvetted tools and chaotic tech stacks. Stoyan and Taha are building exactly what stretched infosec teams need: AI-native agents that go beyond alerts to deliver full remediation. We’ve been impressed by their speed and traction so far and are excited to back them as they scale across Europe and the US,” said Zoe Chambers, Partner at Frontline Ventures.

Pilot programmes are underway with CISOs in FinTech, banking, government, defense, and telecom. By enabling real-time resolution without additional headcount, WiseBee allegedly cuts time-to-response from days to hours.

The company is also actively expanding across Europe and North America, with early traction in the CEE, UK, DACH, and U.S. West Coast regions.

“Cybersecurity is no longer just about better alerts; it’s about intelligent context and precise autonomous actions. Wisebee delivers on all fronts, thanks to Stoyan and Taha’s deep industry expertise, AI innovations, and customer-first approach. We are delighted to partner with Wisebee as they bring their product to thousands more organisations and continue growing their team with top AI talent,” said Dimitar Korsakov, Principal at BrightCap Ventures.

WiseBee will leverage this funding to enhance its platform’s autonomous capabilities, expand integrations, and grow its team to support product-led growth. The company is also laying the groundwork for its next funding round and a community-driven approach to cyber defence.

The post Cybersecurity startup WiseBee raises €2.1 million to bring autonomous cyber defense to mid-market companies appeared first on EU-Startups.