Venture capital flowing into deep tech hit $20.3 billion in 2025, capturing a record 32% of all European VC investment. That is more than double the share a decade ago.

The capital is moving because the technology is real. Defence budgets are climbing. Fusion reactors are under construction. Quantum processors are shipping to national labs.

Startups turning science into commercial products are raising serious rounds, signing industrial customers, and building sovereign European capability across six verticals.

Here are 50 of the most compelling.

How We Selected These European Deep Tech Startups

Selection required meeting four criteria:

• Science-based IP: technology rooted in a genuine scientific or engineering breakthrough, not a software wrapper

• European headquarters: founded and headquartered in Europe

• Seed to Series B: early enough to be a discovery, funded enough to be credible

• Active in a DTM vertical: defence and security, space, robotics and manufacturing, energy, advanced materials, or future of compute

We drew on funding data from Dealroom, Crunchbase, and Sifted, combined with insights from the Deep Tech Now network of founders, investors, and corporate innovation leaders.

Defence and Security

European defence startups raised a record $8.7 billion in 2025, up 55% year on year. The EU has committed EUR 1.6 billion to rebuild and modernise European defence innovation. These eight startups are building the sovereign capabilities that Europe's armed forces need.

Helsing

| Munich, Germany

Technology: AI-powered software platform for real-time situational awareness and decision support across land, air, and sea domains.

Customers: Bundeswehr, French Armed Forces, NATO partners.

Funding: EUR 450M+ total, backed by General Atlantic, Accel, and Saab.

Why it matters: Europe's most valuable pure-play defence AI company, operating across three NATO nations with production-grade deployments, not prototypes.

➔ Helsing's software is already integrated into operational Eurofighter systems.

Quantum Systems

| Munich, Germany

Technology: Electric vertical take-off and landing (eVTOL) reconnaissance drones with AI-powered autonomous navigation and real-time ISR capabilities.

Customers: Ukrainian Armed Forces, Bundeswehr, undisclosed NATO agencies.

Funding: EUR 65M+, backed by Project A Ventures, NATO Innovation Fund.

Why it matters: Battle-tested in Ukraine, delivering intelligence without risking personnel. A model for the autonomous battlefield Europe is preparing for.

ARX Robotics

| Oberding, Germany

Technology: Modular unmanned ground vehicles (UGVs) and a digitalisation platform for legacy military fleet management.

Customers: Bundeswehr, European defence agencies.

Funding: EUR 42M Series A (Speedinvest-led), with RENK Group as strategic partner for industrial scaling.

Why it matters: Bridges the gap between agile startup innovation and Europe's large, legacy-heavy defence procurement system.

Comand AI

| Paris, France

Technology: AI applications that transform how defence operations are planned, coordinated, and commanded in real time.

Customers: French and UK defence organisations.

Funding: EUR 11.5M total (EUR 8.5M seed led by Eurazeo). Committed to investing >$47.5M in UK operations.

Why it matters: Command and control is the brain of any military operation. Comand AI is building the software layer that makes it faster and sharper.

Harmattan AI

| Paris, France

Technology: Autonomous, scalable defence systems designed for rapid deployment across contested environments.

Customers: Undisclosed government agencies (strategic programme of record awarded).

Funding: $30M raised.

Why it matters: Awarded a multi-million-dollar strategic programme of record. A rare signal of government confidence in a startup's readiness for frontline deployment.

Arondite

| London, UK

Technology: Cobalt platform, providing AI for autonomous defence systems and human-machine teaming.

Customers: UK Ministry of Defence, NATO partners.

Funding: $12M raised.

Why it matters: Participated in NATO-linked exercises in Latvia, proving its technology in coalition environments where interoperability is everything.

Delian Alliance Industries

| Athens, Greece

Technology: Autonomous anti-access/area denial (A2/AD) systems for surveillance, deterrence, and border protection.

Customers: Greek Armed Forces, European coastal defence agencies.

Funding: $14M Series A.

Why it matters: Europe's southern and eastern borders face growing pressure. Delian builds the autonomous systems designed for exactly this geography.

Blackdot Solutions

| Cambridge, UK

Technology: Open-source intelligence (OSINT) platform that monitors online threats, disinformation, and hostile information operations.

Customers: UK government agencies, European law enforcement.

Funding: GBP 5M+ raised.

Why it matters: Defence is no longer only kinetic. Information warfare is a frontline, and Blackdot provides the tools to detect and counter it at scale.

Space

European space investment is accelerating, driven by ESA's record EUR 22.1 billion budget commitment and growing demand for sovereign launch, satellite, and in-orbit capabilities. These eight startups are building the infrastructure for Europe's space sector.

Isar Aerospace

| Munich, Germany

Technology: Spectrum, a two-stage launch vehicle designed for small and medium satellite payloads, with a focus on cost efficiency and rapid launch cadence.

Customers: European Space Agency (ESA), commercial satellite operators.

Funding: $614.6M total, including a EUR 150M convertible bond (July 2025).

Why it matters: Completed its first test flight in March 2025. Europe's strongest contender to close the gap with SpaceX in commercial launch services.

ICEYE

| Espoo, Finland

Technology: Synthetic Aperture Radar (SAR) satellite constellation delivering high-resolution Earth imaging through clouds, darkness, and adverse weather.

Customers: Finnish Defence Forces, NATO Allied Command, Polish Armed Forces, European Maritime Safety Agency.

Funding: $529M total.

Why it matters: The world's largest commercial SAR constellation, providing 24/7 persistent monitoring. A dual-use asset for both defence and climate resilience.

The Exploration Company

| Oberpfaffenhofen, Germany

Technology: Nyx, a reusable space capsule for cargo (and eventually crew) transport to and from orbital stations.

Customers: Axiom Space, Starlab, Vast Space, ESA.

Funding: EUR 196.8M total.

Why it matters: Europe's answer to the question of sovereign human spaceflight capability. Independent European access to space is non-negotiable, and Nyx is a critical piece of that puzzle.

PLD Space

| Elche, Spain

Technology: MIURA family of launch vehicles for small satellite missions, with MIURA 5 targeting commercial operations.

Customers: European institutional and commercial payload operators.

Funding: EUR 180M Series C (March 2026), led by Mitsubishi Electric, COFIDES, and Nazca Capital.

Why it matters: Spain's flagship space startup, now backed by a Japanese industrial giant. A sign that European launcher companies are attracting global strategic capital, not just VC.

D-Orbit

| Fino Mornasco, Italy

Technology: ION orbital transfer vehicles that deploy, manage, and service satellites after launch.

Customers: ESA, Italian Space Agency, Planet Labs, Aistech Space.

Funding: $201.2M total.

Why it matters: Launch is only half the problem. D-Orbit solves the other half: getting satellites precisely where they need to be once in orbit.

EnduroSat

| Sofia, Bulgaria

Technology: Modular small and mid-sized satellite platforms designed for rapid configuration and deployment.

Customers: ESA, NASA, research centres, agricultural monitoring operators.

Funding: >$150M total ($104M round led by Riot Ventures, with Google Ventures, EIC Fund, and Lux Capital).

Why it matters: Proof that world-class space hardware can come from anywhere in Europe. Sofia is now on the map.

Reflex Aerospace

| Berlin, Germany

Technology: High-throughput satellite manufacturing using standardised production processes to compress build times.

Customers: European institutional customers, commercial constellation operators.

Funding: EUR 50M raised.

Why it matters: Europe cannot compete in space without manufacturing speed. Reflex is building the factory that matches the continent's launch ambitions.

Infinite Orbits

| Toulouse, France

Technology: Autonomous satellite servicing, including life extension and relocation of geostationary satellites using AI-driven proximity operations.

Customers: European satellite operators.

Funding: EUR 40M raised.

Why it matters: Extending the life of a EUR 300M satellite by five years is one of the highest-ROI propositions in the space economy.

Kreios Space

| Vigo, Spain

Technology: Electric propulsion systems for satellites, enabling precise orbital manoeuvring and station-keeping with lower mass and cost than chemical thrusters.

Customers: European satellite manufacturers and constellation operators.

Funding: EUR 8M raised.

Why it matters: Propulsion is the overlooked bottleneck in satellite operations. Kreios builds the engines that keep European constellations where they need to be.

Robotics and Manufacturing

European robotics funding surged 125% year on year in 2025, reaching EUR 1.6 billion. As the continent that invented industrial automation, Europe is now racing to lead the next wave: AI-driven robotics and manufacturing.

NEURA Robotics

| Stuttgart, Germany

Technology: MiPA, a cognitive humanoid robot with multi-modal sensing, designed for production-ready deployment in industrial and service environments.

Customers: Automotive, logistics, and manufacturing partners.

Funding: EUR 120M Series B (January 2025), one of Europe's largest humanoid robotics rounds.

Why it matters: While much of the humanoid race is still in the lab, NEURA's MiPA is designed for the factory floor. Europe's leading bet in the humanoid race.

Flexion

| Zurich, Switzerland

Technology: Reinforcement-learning platform (a "robotic brain") enabling humanoid and human-capable robots to work alongside people.

Customers: Manufacturing, logistics, and automation partners.

Funding: EUR 43M Series A, led by DST Global Partners, with NVentures (NVIDIA's VC arm), Redalpine, and Prosus Ventures.

Why it matters: NVIDIA backing signals that Flexion's approach to physical AI is considered foundational, not incremental.

Sereact

| Stuttgart, Germany

Technology: AI-powered, hardware-agnostic robot systems for pick-and-place, material handling, and warehouse logistics.

Customers: Daimler Truck, BOL, MS Direct, Active Ants.

Funding: EUR 25M Series A (Creandum, Point Nine, Air Street Capital).

Why it matters: Achieves more than 98% pick accuracy on any robot from day one. That number turns automation from a pilot project into a production decision.

Inbolt

| Paris, France

Technology: GuideNOW, an AI-powered 3D vision system for real-time robot guidance in high-mix, unstructured production environments.

Customers: Ford, Whirlpool, Thyssenkrupp Automotive, Atlas Copco.

Funding: EUR 15M Series A (Exor Ventures, MIG Capital, SOSV, BNP Paribas).

Why it matters: Powered over 20 million robot cycles in H1 2025. Industrial robots become adaptable rather than rigid, unlocking automation for Europe's high-mix factories.

Unchained Robotics

| Paderborn, Germany

Technology: LUNA OS automation platform with modular robot cells enabling rapid, low-code deployment of multi-vendor robots.

Customers: Albea Group, Vorwerk, and 300+ other customers.

Funding: EUR 8.5M Series A (Future Industry Ventures, Teklas Ventures).

Why it matters: Democratises automation for SMEs, closing Europe's small-business automation gap at a fraction of the cost of custom integration.

➔ They call their product the "MalocherBot", German slang for working hard.

sewts

| Munich, Germany

Technology: AI and robotics for handling deformable materials (textiles) using physics-based simulation and advanced perception.

Customers: Large industrial laundries and textile processors across Europe.

Funding: EUR 7M Series A (Bayern Kapital, APEX Ventures, High-Tech Grunderfonds).

Why it matters: Solves one of the hardest unsolved problems in industrial robotics: manipulating soft, unpredictable materials.

Mimic

| Zurich, Switzerland

Technology: AI-driven dexterous robotic hands paired with off-the-shelf robot arms, deploying frontier physical AI across industrial applications.

Customers: Industrial automation partners (early deployments).

Funding: EUR 17M total (EUR 13.8M latest round, led by Elaia with Speedinvest).

Why it matters: Dexterity is the bottleneck for general-purpose robots. Mimic's approach of upgrading existing arms with intelligent hands is pragmatic and scalable.

1X Technologies

| Oslo, Norway

Technology: NEO, a humanoid robot designed for home and commercial environments, combining advanced AI with safe, human-scale form factor.

Customers: Early commercial pilots in logistics and facility management.

Funding: $100M+ total (OpenAI, EQT Ventures).

Why it matters: OpenAI's investment signals that the intersection of large language models and physical robotics is where the next platform shift is forming.

Energy

European energy storage startups have secured EUR 2.14 billion in funding, while fusion companies are moving from physics milestones to engineering timelines. The EU's REPowerEU plan and national strategies are accelerating demand for sovereign energy deep tech.

Proxima Fusion

| Munich, Germany

Technology: Stellarator fusion reactors using advanced superconducting magnets and AI-optimised plasma confinement. Max Planck Institute spin-off.

Customers: Research institutions, future utility-scale deployment.

Funding: EUR 25M+ Series A.

Why it matters: The stellarator approach offers inherently stable plasma confinement without the disruption risk of tokamaks. Proxima is building the path from physics proof to first commercial plant.

Marvel Fusion

| Munich, Germany

Technology: Laser inertial confinement fusion using ultra-short-pulse, high-intensity lasers to achieve ignition.

Customers: Research partnerships, pre-commercial.

Funding: EUR 35M+ raised.

Why it matters: A fundamentally different approach to fusion that could be smaller, cheaper, and faster to deploy than magnetic confinement. Munich is becoming Europe's fusion capital.

Entrix

| Munich, Germany

Technology: Battery optimisation platform that maximises revenue from battery energy storage systems through AI-driven trading and dispatch.

Customers: European grid operators, energy storage asset owners.

Funding: EUR 43M raised (March 2026). Contracted capacity: 3 GW / 8.5 GWh.

Why it matters: As renewables scale, the value of storage depends entirely on software intelligence. Entrix's 8.5 GWh of contracted capacity proves the market is buying.

Cactos

| Helsinki and Kempele, Finland

Technology: Intelligent battery storage systems (BESS) with a cloud-based control platform for automated load shifting, peak shaving, and reserve power.

Customers: Industrial clients in Finland. Now a licensed electricity company.

Funding: EUR 26M+ in equity.

Why it matters: Delivering power directly to industrial clients is a rare milestone for a storage startup. Aligned with Europe's first 15-minute pricing auction rollout.

Aedifion

| Cologne, Germany

Technology: AI-powered platform connecting building systems (lighting, HVAC, elevators) to reduce energy consumption and operating costs without major renovation.

Customers: Controls 500+ buildings spanning 6 million square metres across 8 countries.

Funding: EUR 17M Series B (June 2025, led by Eurazeo). Annual recurring revenue doubled in 2024.

Why it matters: Buildings consume 40% of Europe's energy. Aedifion scales efficiency across existing real estate with low incremental investment.

Enode

| Oslo, Norway

Technology: API platform enabling businesses to connect and manage distributed energy resources (EVs, solar inverters, batteries, thermostats) through a unified interface.

Customers: Energy retailers, utilities, and EV charging networks.

Funding: $15M Series A (led by Creandum). Supports 1,000+ energy device types.

Why it matters: The grid is becoming a network of millions of distributed devices. Enode provides the middleware that makes it manageable.

HADES

| Munich, Germany

Technology: Proprietary deep-drilling systems to access ultra-deep geothermal energy reservoirs and critical mineral deposits.

Customers: Pre-commercial (emerged from stealth August 2025).

Funding: EUR 5.5M pre-seed (led by Project A).

Why it matters: Europe imports nearly all its critical minerals and lacks baseload geothermal capacity. HADES targets both problems with a single drilling platform.

TEM

| London, UK

Technology: RED (Renewable Energy Direct) platform enabling businesses to buy electricity directly from renewable generators, bypassing middlemen.

Customers: UK businesses seeking transparent, lower-cost renewable energy.

Funding: GBP 10.5M Series A (September 2024, led by Atomico). $17.3M total.

Why it matters: Energy procurement in Europe is opaque and expensive. TEM's direct-trading model gives businesses both cost savings and verifiable green credentials.

Advanced Materials

Materials underpin every other vertical on this list. Defence needs radiation-hardened composites. Space needs lightweight alloys. Energy needs next-generation battery chemistries.

AI is now compressing the traditional 10 to 20 year discovery cycle into months. These eight startups are building Europe's advanced materials future.

Cusp AI

| London, UK

Technology: AI-driven crystal structure prediction for discovering new materials with targeted properties, using generative models trained on materials science data.

Customers: Research institutions, industrial materials buyers.

Funding: ~$70M seed (2025), one of Europe's largest seed rounds in AI for science.

Why it matters: Materials discovery has been slow for centuries. Cusp AI's approach could identify stable, synthesisable materials in days rather than decades.

Dunia

| Berlin, Germany

Technology: AI-powered platform for accelerating advanced materials discovery, connecting computational prediction with experimental validation.

Customers: Industrial chemicals and materials companies.

Funding: $11.5M raised.

Why it matters: Berlin-based, connecting Germany's deep materials science tradition with modern AI. A bridge between the Fraunhofer world and startup speed.

Polaron

| London, UK

Technology: Intelligence layer for materials science, using AI to predict material properties and optimise formulations for specific industrial applications.

Customers: Manufacturing and chemicals partners.

Funding: EUR 6.7M (February 2026).

Why it matters: Positioned as the "intelligence layer for the physical world," Polaron turns materials science from artisanal experimentation into data-driven engineering.

Cellugy

| Aarhus, Denmark

Technology: Bio-based cellulose nanofibre materials produced through fermentation, replacing petroleum-derived additives in consumer and industrial products.

Customers: Consumer goods, food packaging, personal care.

Funding: $15.2M raised.

Why it matters: Europe's PPWR (Packaging and Packaging Waste Regulation) is creating massive demand for bio-based alternatives. Cellugy is positioned squarely in that regulatory tailwind.

Graphmatech

| Uppsala, Sweden

Technology: Aros Graphene, a non-explosive graphene powder enabling industrial-scale integration into batteries, polymers, and coatings.

Customers: Battery manufacturers, polymer producers, coating companies.

Funding: EUR 5M+ raised.

Why it matters: Graphene has been "five years away" for two decades. Graphmatech solved the handling and safety problem, making industrial-scale graphene integration commercially viable.

Fortify

| Eindhoven, Netherlands

Technology: Digital composite manufacturing (DCM) platform using magnetically aligned fibres to create 3D-printed parts with directional strength properties.

Customers: Aerospace, automotive, and industrial tooling companies.

Funding: $20M+ raised.

Why it matters: Additive manufacturing today produces weak parts. Fortify's magnetically aligned composites deliver structural performance that competes with machined metal.

Novastone

| Berlin, Germany

Technology: Industrial-grade recycled construction materials produced from waste streams, including recycled glass and mineral-based aggregates.

Customers: Construction companies, infrastructure developers across Germany.

Funding: Seed-stage funding secured.

Why it matters: The construction sector generates 35% of Europe's waste. Novastone turns that liability into a commercial product, aligned with EU circular economy directives.

Spectral Engines

| Munich, Germany

Technology: Miniaturised near-infrared (NIR) spectroscopy sensors for real-time material identification and quality analysis in industrial settings.

Customers: Recycling, food processing, pharmaceutical, and chemical industries.

Funding: EUR 10M+ raised.

Why it matters: You cannot build a circular materials economy without knowing what materials you have. Spectral Engines provides the sensor layer that makes sorting and recycling intelligent.

Future of Compute

The Future of Compute segment recorded the fastest growth in European deep tech investment in 2025. A EUR 50 million pan-European Photonics for Quantum (P4Q) pilot launched this year to industrialise quantum photonic chips. These eight startups are building the computing infrastructure Europe needs for sovereign processing power.

IQM Quantum Computers

| Espoo, Finland

Technology: Superconducting quantum hardware with co-designed quantum processors optimised for specific computational tasks.

Customers: National computing centres across Asia, the US, and Europe.

Funding: EUR 558M total, making IQM one of the world's best-funded quantum companies.

Why it matters: When national governments need quantum infrastructure, IQM is the name on the purchase order. Europe's quantum hardware champion.

Pasqal

| Massy, France

Technology: Quantum processors using neutral atom arrays, enabling scalable quantum computation with over 1,000 atoms.

Customers: Saudi Aramco, BMW, Airbus.

Funding: EUR 100M raised.

Why it matters: Neutral atoms offer a uniquely scalable path to useful quantum computing. Pasqal's customer list reads like a who's who of global industry.

Alice & Bob

| Paris, France

Technology: Cat qubits, a proprietary error-correction approach that reduces the hardware overhead needed for fault-tolerant quantum computing.

Customers: Research partners, French government programmes.

Funding: EUR 130M total (including PROQCIMA programme funding from the French government).

Why it matters: Error correction is the wall between quantum promise and quantum utility. Alice & Bob's cat qubits are designed to break through it with fewer physical qubits.

planqc

| Munich, Germany

Technology: Neutral-atom quantum computer targeting 1,000+ qubits, using optical trapping of individual atoms.

Customers: Leibniz Supercomputing Centre (LRZ), research institutions.

Funding: EUR 50M raised.

Why it matters: Germany's leading quantum hardware startup, embedded in Munich's supercomputing cluster. The Leibniz partnership provides a path from lab to production.

Quandela

| Massy, France

Technology: Photonic quantum computing using single photons as qubits, enabling modular, room-temperature quantum processors.

Customers: OVHcloud (Europe's largest cloud provider).

Funding: EUR 50M raised.

Why it matters: Photonics offers quantum computing at room temperature, without the cryogenic overhead. The OVHcloud partnership could put photonic quantum into European data centres.

Riverlane

| Cambridge, UK

Technology: Quantum error correction (QEC) software, including the Deltaflow operating system designed to run across multiple quantum hardware platforms.

Customers: Rigetti, Oak Ridge National Laboratory, national labs across Europe and the US.

Funding: EUR 69.8M raised.

Why it matters: No quantum computer will reach utility without error correction. Riverlane's hardware-agnostic QEC software is the translation layer between noisy qubits and reliable computation.

eleQtron

| Siegen, Germany

Technology: Trapped-ion quantum systems using microwave-based control, eliminating the need for complex laser setups.

Customers: Forschungszentrum Julich, Infineon.

Funding: EUR 50M raised.

Why it matters: Trapped ions offer the highest-fidelity qubits available today. eleQtron's microwave approach simplifies the engineering, making trapped-ion systems more deployable.

QuantWare

| Delft, Netherlands

Technology: Scalable superconducting quantum processing units (QPUs), including the award-winning Contralto-A processor. TU Delft/QuTech spin-off.

Customers: Quantum research labs, computing centres.

Funding: EUR 23.3M raised (June 2025).

Why it matters: Won the Quantum Effects Award 2025 for hardware. QuantWare is building the "TSMC of quantum," manufacturing the chips others use to build their quantum stack.

SemiQon

| Espoo, Finland

Technology: Silicon-based quantum processor chips using standard semiconductor manufacturing processes.

Customers: Quantum computing and high-performance computing system integrators.

Funding: EUR 17.5M raised, backed by the European Innovation Council.

Why it matters: If quantum computing scales on silicon, it scales on existing fab infrastructure. SemiQon is betting that the future of quantum looks more like the present of classical chips.

What Connects These 50 Startups

Three threads run through every company on this list.

First, science-based IP. Not a software integration layer. Not an AI wrapper. Actual physics, chemistry, and engineering breakthroughs that are hard to replicate and take years to develop.

Second, European roots. From Helsinki to Athens, from Sofia to Elche, these startups are headquartered across the continent. They draw on Europe's research infrastructure, its 30% share of the world's leading deep tech universities, and a technical talent base that produces twice as many science graduates as the US.

Third, commercial ambition. Every company here has paying customers, government contracts, or strategic partnerships. Science alone is not enough. Commercialisation is the test.

These 50 European deep tech startups will be part of a broader community converging at DTM26 in Berlin this June, where 3,000+ builders, buyers, and investors will meet across all six market verticals. The DTM100 programme selects the 100 most promising startups for curated corporate matchmaking and 20,000+ one-on-one meetings.

The research is European. The capital is arriving. The startups are building.

So the question is no longer whether Europe can compete in deep tech. It is how fast.