Barcelona-based NeuralTrust raises €17.2 million to secure and govern enterprise AI agents

NeuralTrust, a Barcelona-based startup that secures and scales AI agents, today announced a €17.2 million ($20 million) Seed round, which the company describes as the largest cybersecurity Seed financing raised by an EU company to date. 

The round was led by Alstin Capital, with participation from VentureFriends, Seaya, Kibo Ventures, Banc Sabadell, EA Ventures Plug and Play Fund, and Finaves, the venture capital fund of IESE Business School. NeuralTrust is also backed by public funding from the European Innovation Council and Spain’s State Research Agency (AEI).

“AI agents are now part of enterprise operations, but the controls protecting them are still catching up. This round allows us to keep building the infrastructure layer that makes AI adoption measurable, governable, and safe. Our mission has not changed since day one: turn AI security into a strategic advantage for the enterprises that will define the next decade,” said Joan Vendrell, co-founder and CEO of NeuralTrust.

Founded in 2022 by Vendrell (CEO), Victor Garcia (CTO), and Alejandro Domingo (COO), NeuralTrust is an enterprise platform for securing AI Agents. It helps enterprises identify, secure, and govern every AI agent running across their organisation, from global banks and airlines to energy companies and government agencies.

Its mission is to make AI adoption measurable, governable, and safe, turning AI security into a strategic advantage.

The company cites a Gartner study that predicts that by 2027, 40% of enterprises will demote or decommission autonomous AI agents due to governance gaps identified only after production incidents occur. It further states that the risk is growing rapidly as Fortune 500 companies are projected to operate more than 150,000 agents each by 2028, yet only 13% of firms feel prepared to manage them.

According to NeuralTrust, inside a large company, AI agents end up everywhere. One team builds a customer-service agent on one AI provider, another automates back-office work on a different one, and vendor software ships with agents of its own. They connect to internal systems, databases, and outside tools, and they act on their own. 

It notes that most security teams are unable to specify the number of agents in operation, their permitted actions, or identify if any have been duped into leaking data or performing unauthorised actions. 

NeuralTrust claims that it provides a single platform where users can view all agents, manage their capabilities, and intervene if issues arise.

The company inspects millions of agent interactions every day. Around 1.2% are malicious and need intervention: attempts to extract data, hijack a tool, or push an agent past its rules, caught and stopped in real time.

Its three core products are TrustGate, TrustGuard, and TrustLens. TrustGate is an agent gateway that brokers every LLM, MCP, and tool call, becoming the single enforcement point through which all agent traffic flows.

TrustGuard is a runtime security engine that detects and stops threats across every platform and endpoint where agents operate, regardless of how they were built or deployed. And TrustLens is a posture management layer that identifies every agent in the enterprise and tracks how it behaves inside and outside the security perimeter. 

“AI agents are entering enterprise infrastructure faster than security teams can adapt, so the window to establish control is now. What convinced us to lead this round was not just an exceptional product, but also the team’s clarity on where the real problem sits. They’ve built a genuine control layer, not another point solution, and enterprises can operationalise it today. We believe securing AI agents in enterprise infrastructure is becoming one of the defining problems in cybersecurity and NeuralTrust is best placed to own it,” said Alexander Meyer-Scharenberg, Partner at Alstin Capital.

The company plans to use this capital to deepen the integration across the platform, grow the engineering team, and broaden the range of AI models, tools, and platforms NeuralTrust secures as the agent ecosystem expands. 

From its offices in Barcelona and London, the company’s goal is to become the market leader in Europe by the end of 2026 and to grow its international presence from there. NeuralTrust’s customers include AirEuropa, Abanca, Iberia, and Banc Sabadell, alongside other global banks, airlines, energy companies, and government agencies. It reports that 92% of customers have annual revenues above €862.1 million ($1 billion), with 80% based in Europe and 20% international. 

The company is experiencing rapid growth: in the first quarter of 2026, NeuralTrust doubled its full-year 2025 ARR.

NeuralTrust has partnered with KPMG, a key strategic partner, to bring its technology to large enterprise clients, alongside a wider network of industry collaborators (including Capgemini, Sopra Steria, Bentengo and M3Corp).

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