SE3, a Munich startup that writes AI software for military drones, has raised $30 million in a Series A round led by Accel. The deal was announced on November 12, 2026, with Keen Venture Partners joining as a new investor and seed backers Lakestar and Seedcamp putting in more.
That seed closed less than five months earlier. SE3 came out of stealth in June 2026 with €5.5 million, as Resilience Media reported, a sum Fortune converts to $6.1 million.
- Seed, June 2026: €5.5 million (about $6.1 million)
- Series A, November 12, 2026: $30 million
The new round is about 4.9 times the seed ($30 million ÷ $6.1 million = 4.92). The two disclosed rounds come to roughly $36.1 million.
Most of the money goes to hiring. SE3 said in its Series A announcement that it will grow its engineering, commercial and operations teams to deliver more contracts, and open a UK office. Fortune reports the target is about 120 employees, up from about 40. That’s roughly 80 new hires (120 − 40) and a team three times its current size. Offices are planned for London, Berlin, the Nordics and Baltics, and Poland.
The software merges video and sensor feeds from multiple drones and ground vehicles into one 3D battlefield map that soldiers can question in plain language and that can send drones out on voice command. Its onboard navigation works without GPS and can run offline, the kind of on-device processing tracked in these AI edge computing market statistics.
The contracts are signed. SE3 has several with Germany’s Bundeswehr and with Ukraine, where its technology is in use, and it says it has shipped thousands of systems over the past two years. Rheinmetall, Hensoldt, Auterion and ERC System are listed as partners, putting SE3’s work inside the wider market for AI-driven robots.
On who decides where the technology ends up, CEO Lukas Köstler pointed Fortune to German export law.
“It’s really the elected parliament that decides in the end what we will do.”
Lukas Köstler, cofounder and CEO of SE3
What does $30 million tell you without a valuation?
Not what Accel paid for its stake. SE3 hasn’t disclosed a valuation, so the share of the company sold in this round is unknown.
There’s no revenue figure either.
What you can do is divide. At the 120-person target, $30 million works out to $250,000 per employee ($30 million ÷ 120), and that has to cover salaries and four new office locations before anything else.
Two of his timelines are worth keeping next to that number. He told Fortune the fleet-command AI needs another one to two years of development, and that defense work will drive revenue for at least the next 12 months while a small team looks at civilian robotics. Until SE3 publishes a revenue number, you can’t tell how much of that 120-person payroll the Bundeswehr and Ukraine contracts cover.
