Munich just got a new player in the physical security world, and this one is going after a problem most people don’t think about until something breaks: who’s actually watching the substations, railway lines, and data centers around the clock.
The Funding Details
Munich-based Arcos has closed a €5.5 million seed funding round. The round closed on September 18, 2026, the same day the company launched publicly. Arcos was started in 2025, working in security, civil infrastructure, and B2B services.
The round brought in a mix of investors. High-Tech Gründerfonds (HTGF) took part, along with Bayern Kapital, Pact, Haufe, Robin Capital, and a group of strategic business angels. Worth noting – HTGF’s own backers include the German Federal Ministry for Economic Affairs and Energy and KfW Capital, so there’s a public-sector thread running through this money too. That’s not something you see in every seed round, and it kind of signals how seriously critical infrastructure protection is being taken right now in Germany.
What Arcos Actually Does
So here’s the problem Arcos is solving. Companies and public operators have been adding more and more sensors to their sites over the past few years – cameras, alarms, access systems, all kinds of detection tech. But at the same time, fewer people are around to actually watch and respond to what those sensors pick up. That gap is where things go wrong.
Arcos built a platform that pulls signals from all these different sensors into one system. Instead of an operator flipping between five different tools, everything shows up in one control center – detection, assessment, escalation, and documentation, all in one place. When something happens, a person still makes the call on how to respond, especially where real judgment is needed, but the platform handles the heavy lifting of pulling the picture together fast.
Founder Louis Wübben put it simply: attacks on infrastructure that nobody watches around the clock succeed because nobody is continuously looking. And honestly, that tracks – you don’t need a sophisticated attack to cause damage if there’s just no one paying attention.
Why Now
The founders point to a pretty clear shift happening across Europe. Attacks on substations, burning cable ducts along railway lines, drones flying over airports and industrial sites – these used to sound like worst-case scenarios. Now they’re just part of the news cycle. “We started Arcos a year ago because nobody was building the company that keeps watch over it,” Moritz Steigerwald, founder and managing director, told EU-Startups.
It’s a fair point that this shift is happening fast, maybe faster than most security teams can keep up with using old tools. That’s basically the bet Arcos is making – that the answer isn’t just more sensors, but a system that can actually make sense of everything those sensors are already producing.
What the Money Is For
The funding is going toward growing the team in Germany, building out the platform further, and focusing first on customers running critical infrastructure – think railway stations, substations, data centers, that kind of thing. Once that’s solid, the plan is to expand into other European markets.
It’s also worth mentioning Arcos showed up at Security Essen, a major industry event running from September 22 to 25, 2026, right around when this funding was announced. Wübben was scheduled to speak at the event’s KRITIS forum on critical infrastructure, so the timing wasn’t an accident – they’re clearly using this moment to get in front of the exact operators they want as customers.
The Bigger Picture
One thing that stands out here: analysts have pointed out that at €5.5 million, this round sits in the top 10% of all-time seed deals in the security sector. That’s a pretty strong signal that investors see real appetite for physical infrastructure protection right now, especially as European operators deal with rising threats and thinner staff.
Arcos was founded by Louis Wübben and Moritz Steigerwald. The company is still early – just over a year old – but the combination of investor interest, public sector involvement through HTGF, and a public launch timed with a major industry event suggests they’re moving fast to establish themselves before bigger competitors catch up.