
Helsing is a defence technology company focused on building AI-powered software and autonomous systems for military applications across air, land, sea, space, and cyber domains. Founded in Munich in 2021 by Gundbert Scherf, Niklas Kohler, and Torsten Reil, the company has rapidly scaled to become one of Europe's most valuable defence tech startups, valued at €12B following a €600M Series D led by Spotify CEO Daniel Ek's Prima Materia. Helsing has delivered thousands of strike drones to Ukraine, acquired aircraft manufacturer Grob Aircraft, and unveiled the CA-1 Europa autonomous combat aerial vehicle. The UK is a core operating market: Helsing incorporated its UK subsidiary simultaneously with German operations in 2021, has committed £350M of investment under the UK-Germany Trinity House Agreement, opened an 18,000 sq ft Resilience Factory in Plymouth to produce the SG-1 Fathom autonomous submarine-hunting glider, and holds multiple MoD contracts including the ASGARD programme for AI-enabled battlefield targeting. The company maintains a London HQ at Mortimer Street and actively hires across UK engineering and AI research roles.
QuadSAT is a Denmark-based defence technology company founded in 2017 by Joakim Espeland (CEO) and Andrian Buchi (CTO), who met as mechanical engineering students at VIA University College. Espeland, a Norwegian RF engineer with five years of experience in maritime satellite communications, identified inefficiencies in satellite antenna testing that required expensive ship deployments. The company develops drone-based RF measurement and antenna testing systems, with traction including operational campaigns with OneWeb and the European Space Agency. QuadSAT maintains a UK registered office in London to serve NATO-aligned defence customers across Europe. The company raised €9M in Series A funding led by IQ Capital in 2023, followed by a €5M extension in 2025 led by Join Capital and North Ventures.
Arondite is a London-based defence technology company building foundational software and AI to power the autonomous age. The company develops a platform that connects disparate autonomous systems, such as drones, ground robots, and AI-powered sensors from any manufacturer, giving human operators clearer oversight and safer operational control. Founded by former Palantir and Helsing veteran Will Blyth and ex-BAE Systems engineer Rob Underhill, the company addresses the growing need for interoperability as militaries adopt a proliferation of new autonomous hardware across the battlefield.
Grayscale AI is a London-based startup founded in 2020 by Dragos Stanciu, developing neuromorphic AI systems that mimic human neural networks for autonomous drones, robots, and vehicle navigation. Drawing on computational neuroscience research from the University of Edinburgh and ETH Zurich, the company's technology delivers up to 500x greater energy efficiency than traditional computing with edge processing under 100 milliseconds. Grayscale AI has validated its technology through partnerships with HORIBA MIRA, AVL, and Smart Mobility Living Lab London. The company participates in NATO's DIANA accelerator programme and has received grant funding from Innovate UK and the US Army xTech programme, alongside backing from Techstars.
Overwatch Group is an independent British defence company that designs, engineers, and manufactures unmanned aerial systems and precision strike munitions. Founded in 2020 by British forces veterans and headquartered in Wolverhampton, the company builds agile defence technology including the Pholos pack-portable UAS and loitering munitions with kinetic payloads. Overwatch has delivered approximately 800 systems since 2022 and operates with a team of around 30 personnel. The company is self-funded with no disclosed external investment rounds, led by CEO Drew Michael.