Arcos raises €5.5M Seed to build Europe's civil security infrastructure layer

Arcos (Munich) has raised €5.5 million in a Seed round led by High-Tech Gründerfonds (HTGF) and Bayern Kapital, with Pact, Haufe, Robin Capital, and strategic business angels also participating. Founded approximately a year ago by Louis Wübben and Moritz Steigerwald, both Managing Directors, the company launched publicly alongside this round. Arcos builds and operates integrated civil security infrastructure for critical sites — processing sensor signals, assessing incidents, and managing them through to closure.

The company's proposition is that today's civil security infrastructure is built from components that were never designed to work together: alarm panels from one vendor, access control from another, monitoring centres that receive notifications but do not have context, and on-site response that arrives after the incident has escalated. Arcos installs sensors at client sites — homes, commercial properties, railways, substations, data centres — connects them into a unified platform, and uses AI to assess incoming signals, distinguish false alarms from genuine incidents, and manage the response workflow through to closure.

The infrastructure protection mandate

European critical infrastructure operators are navigating a converging set of pressures. The NIS2 Directive (network and information security) and the Critical Entities Resilience (CER) Directive have moved incident monitoring and response from best practice to regulatory requirement for a range of operators. At the same time, the geopolitical environment of the past three years has elevated the practical risk perception around power infrastructure, transport networks, water systems, and data centres.

The market these regulations are addressing was served, historically, by physical security integrators deploying proprietary hardware and separate monitoring contracts. The result is fragmented: an electricity substation operator may have four separate vendor systems that do not share data and cannot be monitored centrally without a manual integration project.

Steigerwald: "Europe has understood that its safety is its own responsibility, and that this includes the infrastructure everyday life runs on: power, transport, water, data. We started Arcos a year ago because nobody was building the company that keeps watch over it."

The operations challenge

Arcos's model is notable for being deliberately operational, not purely software. The company does not only sell a platform; it operates the response layer — 24/7 monitoring and incident management, not just a dashboard that sends alerts to an existing security operations centre. This positions Arcos between a pure SaaS company (higher margins, lower execution complexity) and a managed security services provider (recurring revenue per site, higher operational cost).

HTGF — Germany's most active early-stage investor, which also led syte's Series A this month — is backing the team's capacity to execute that hybrid model. Bayern Kapital, the Bavarian state-backed fund, reinforces the regional anchor. Haufe, the German HR and legal-software group, is a strategic participant whose corporate clients include many of the mid-market businesses Arcos is targeting.

The €5.5 million funds team expansion in Germany, platform development, and initial European market entry. The 18-month test: can Arcos sign enough reference customers in critical infrastructure to establish the track record that larger operator contracts require before the established physical security integrators build a competing product.