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BARCELONA, June 17, 2026 NeuralTrust/ — NeuralTrust, the platform to secure AI agents, today announced a $20 million seed round, the largest cybersecurity seed financing raised by an EU company to date. The round will fund engineering, deepening the integration across NeuralTrust’s products, and expansion across the European market, as enterprises move autonomous AI systems into production.
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).
Agentic adoption is outpacing governance
The investment arrives as AI agents move from experimentation to core enterprise infrastructure, with governance failing to keep pace. Gartner predicts that by 2027, 40% of enterprises will demote or decommission autonomous AI agents due to governance gaps identified only after production incidents occur. The risk scales fast: 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.
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. Most security teams can't say how many agents are running, what each one is allowed to do, or when one has been tricked into leaking data or taking an action it shouldn't. NeuralTrust gives them one place to see every agent, control what it can do, and stop it when something goes wrong.
NeuralTrust 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.
Three products make this work. TrustGate, an agent gateway that brokers every LLM, MCP, and tool call, becomes the single enforcement point through which all agent traffic flows. TrustGuard, a runtime security engine, detects and stops threats across every platform and endpoint where agents operate, regardless of how they were built or deployed. And TrustLens, a posture management layer, identifies every agent in the enterprise and tracks how it behaves inside and outside the security perimeter. Because the three are deeply integrated, blind spots disappear. The result is a single platform where control, defense, and posture compound with every interaction. Trusted by leading enterprises
NeuralTrust's customers include AirEuropa, Abanca, Iberia, and Banc Sabadell, alongside other global banks, airlines, energy companies, and government agencies. 92% report annual revenues above $1B, with 80% based in Europe and 20% international. The company operates from offices in Barcelona and London, and adoption is accelerating: in the first quarter of 2026, NeuralTrust doubled its full-year 2025 ARR.
NeuralTrust is independently recognized as a category leader across the emerging AI security landscape. Gartner has named the company a Representative Vendor in two Market Guides, KuppingerCole a Leader in its 2025 Leadership Compass for Generative AI Defense, and MarketsandMarkets a Leader in its 2026 Agentic AI Security Quadrant.
NeuralTrust has partnered with KPMG as a key strategic partner to bring its technology to large enterprise clients, alongside a wider network of industry collaborators (including Capgemini, Sopra Steria, Bentengo an dM3Corp).
Building the layer enterprise AI will run on
NeuralTrust is built by a team that understood the problem before the market did. CEO Joan Vendrell led AI deployment and security as Chief Data Officer at Mango, after roles at Amazon and McKinsey; CTO Victor Garcia led security architecture in regulated telecom and banking; and COO Alejandro Domingo led AI transformation as an Associate Partner at McKinsey, after scaling a startup to exit. NeuralTrust research continues to define the field, demonstrating new classes of attack, multi-turn jailbreaks like the 'Echo Chamber' and multimodal attacks like the 'Semantic Chaining', now part of the OWASP AI Security Project taxonomy.
The round will go toward deepening the integration across the platform, growing the engineering team, and broadening 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. The bet behind it: within a few years, every large enterprise will run thousands of AI agents, and securing them will become its own category, the way endpoint and cloud security did before it. NeuralTrust is building to be the layer those enterprises run on.
“AI agents are now part of enterprise operations, but the controls protecting them are still catching up,” said Joan Vendrell, Co-Founder and CEO of NeuralTrust. “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.”
"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 operationalize 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, " says Alexander Meyer-Scharenberg, Partner at Alstin Capital.
About NeuralTrust
NeuralTrust is the leading platform for securing and scaling AI agents. From offices in Barcelona and London, it helps enterprises identify, secure, and govern every AI agent running across their organization, from global banks and airlines to energy companies and government agencies. Recognized as a category leader by Gartner, KuppingerCole, and MarketsandMarkets, NeuralTrust's mission is to make AI adoption measurable, governable, and safe, turning AI security into a strategic advantage. Learn more at neuraltrust.ai. Press contact: rodrigo.fernandez@neuraltrust.ai
About Alstin Capital
Alstin Capital is a generalist early-stage venture capital fund based in Munich with a focus on B2B software. Founded in 2012, Alstin invests across Europe in fast-growing late-seed and Series A software companies. Initial tickets typically range from €2 million to €8 million. At the core is its “all-in” approach: beyond capital, Alstin actively supports founding teams through sales coaching (KPIs, go-to-market, and sales development), assistance with social media, PR and marketing, guidance on scaling and expansion strategies, and access to relevant industry contacts such as potential customers and partners. More information at: https://alstin.capital
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