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European Defence Tech Startups: Who Funds Them and Who Buys

European defence startups raised a record $8.7 billion in 2025, according to Dealroom and the NATO Innovation Fund, and the first nine months of 2026 have produced single rounds bigger than most previous full years: Helsing’s $1.8 billion Series E, Quantum Systems’ $1.2 billion Series D, Tekever’s $580 million first close, Stark’s €500 million and ICEYE’s €450 million. Behind the headline figures the picture is narrower. Fewer than a dozen companies took most of the money, and only a handful have signed procurement contracts with a European ministry of defence. This guide follows the funding, the investors and, above all, the customers.

Key facts (as of September 2026)

Dealroom and the NATO Innovation Fund count $8.7 billion of venture capital for European defence, security and resilience startups in 2025, up 55 per cent; the UK took $2.9 billion and Germany $2.1 billion, and AI-based companies absorbed 44 per cent of the total.
The largest 2026 rounds: Helsing $1.8 billion at an $18 billion valuation (July), Quantum Systems $1.2 billion at $8 billion (July), Tekever $580 million at $6.4 billion (September), Stark €500 million (June), ICEYE €450 million at more than €10 billion (June), Cambridge Aerospace $300 million at $3.4 billion (August).
On 25 February 2026 the Bundestag budget committee approved framework contracts for 4,300 Helsing HX-2 and 2,200 Stark Virtus loitering munitions, roughly €270 million each, with spending capped at €1 billion per manufacturer.
The UK Ministry of Defence selected Tekever’s AR5 for Project CORVUS (up to £400 million over ten years, August 2026), put 26 companies including Helsing and Tekever on the ASGARD decision-support framework (January 2026) and contracted Cambridge Aerospace for Skyhammer interceptors.
Public capital: the NATO Innovation Fund manages more than €1 billion from 24 allies; the EIF’s €175 million Defence Equity Facility has committed €161 million across nine funds and a €1 billion successor is raising; NATO DIANA’s 2026 cohort has 150 companies; Ukraine’s Brave1 has issued more than 1,000 grants.

Why the money is moving: what the 2025 and 2026 data show

The clearest dataset is the annual report Dealroom compiles with the NATO Innovation Fund, published on 10 February 2026. It found that European startups in defence, security and resilience raised $8.7 billion in 2025, a 55 per cent rise on 2024 and nearly four times the level of five years earlier, while the wider European venture market grew by just 16 per cent. Late-stage investment tripled to $4.7 billion, the statistical fingerprint of a market moving from seed cheques to growth rounds. Artificial intelligence underpinned 44 per cent of that money, the highest share in six years, and Germany and the Netherlands each sent more than 15 per cent of all national venture funding into the sector.

Definitions matter here. Dealroom’s category is deliberately broad and includes cybersecurity, space and resilience companies that sell mostly to civilian customers, so anyone quoting “$8.7 billion for defence startups” should know that a large slice went to companies such as ICEYE, whose satellite imagery also serves insurers and disaster agencies. The geographic split is less ambiguous. The UK led with $2.9 billion in 2025 and $9.9 billion since 2020, Germany followed with $2.1 billion and $5.4 billion, and Munich alone has accumulated around $7 billion, largely on the back of Helsing and Quantum Systems. 2026 has not slowed: after Harmattan AI and Frankenburg in the first quarter came ICEYE and Stark in June, Quantum Systems and Helsing in July, Cambridge Aerospace in August and Tekever in September, and six European defence companies now carry private valuations above $3 billion. Where the AI layer sits is covered in Europe’s Defence AI Companies: Who Is Building What in 2026; this article stays with the money and the customers.

The biggest rounds and who is writing the cheques

The table is ordered by the size of the latest verified round, not by any editorial ranking. Maturity labels refer to each company’s lead product with a European or Ukrainian customer, and round figures are given in the currency the source used.

Startup	Country · Category	Latest round (amount, date, lead)	Known customers / contracts	Status
Helsing	Germany · AI software, strike drones	$1.8bn Series E, Jul 2026 (Lightspeed, General Catalyst among leads), $18bn valuation	Bundeswehr HX-2 framework (4,300 units); Ukraine HX-2 deliveries; UK ASGARD framework	PROCUREMENT (Bundeswehr) · LIMITED DEPLOYMENT (Ukraine)
Quantum Systems	Germany · ISR drones, multi-domain autonomy	$1.2bn Series D, Jul 2026 (Blackstone, Noteus, Airbus, Advent), $8bn valuation	NATO forces in Europe and the US, Australia, New Zealand; Ukraine since 2022	OPERATIONAL · SERIAL PRODUCTION
Tekever	Portugal/UK · Tactical ISR UAS	$580m Series D first close, Sep 2026 (UC Investments, Baillie Gifford), $6.4bn valuation	UK MOD Project CORVUS, up to £400m over 10 years; 50,000+ flight hours in Ukraine; ASGARD framework	OPERATIONAL (Ukraine) · PROCUREMENT (UK)
Stark	Germany · Loitering munitions, USVs	€500m Series C, Jun 2026 (Sequoia, Founders Fund), valuation €3.2bn to €3.5bn+	Bundeswehr Virtus framework (2,200 units, ~€269m initial); Virtus deployed in Ukraine	PROCUREMENT · LIMITED DEPLOYMENT
ICEYE	Finland · SAR satellites	€450m Series F, Jun 2026 (General Atlantic), >€10bn valuation	Sovereign constellations for seven European governments incl. Poland; €1.5bn backlog	OPERATIONAL · SERIAL PRODUCTION
Cambridge Aerospace	UK · Low-cost interceptors	$300m Series C, Aug 2026 (DFJ Growth), $3.4bn valuation	UK MOD Skyhammer contracts; LEAP programme (Jul 2026)	PROCUREMENT · early SERIAL PRODUCTION
Harmattan AI	France · Autonomy software, C-UAS, EW	$200m Series B, Jan 2026 (Dassault Aviation), $1.4bn valuation	French and British MoD contracts; multi-million NATO government drone order; Dassault partnership	LIMITED DEPLOYMENT
Auterion	Switzerland/US · Drone autonomy software	$130m Series B, Sep 2025 (Bessemer)	33,000 strike kits for Ukraine (Pentagon, $50m); 50,000 Shrike drones with SkyFall funded by a European NATO state	OPERATIONAL · SERIAL PRODUCTION
Comand AI	France · AI command and control	€32m Series A, Jun 2026 (Blossom Capital; Saab strategic)	Prevail deployed in units in France, Germany and Ukraine	LIMITED DEPLOYMENT
Frankenburg Technologies	Estonia · Low-cost interceptor missiles	€30m Series A, Feb 2026 (Plural)	No public customer contract; two EU production sites planned	PROTOTYPE
ARX Robotics	Germany · Unmanned ground vehicles	€11m Series A extension, Jul 2025 (Speedinvest); €42m total	Six European armed forces incl. Bundeswehr, Ukraine (several hundred Gereon), British Army initial order	OPERATIONAL (Ukraine) · PROCUREMENT (UK)
Delian Alliance Industries	Greece · Surveillance towers, autonomy, EW	$14m Series A, Jul 2025 (Air Street Capital, Marathon VC)	Deployment under way in one NATO country (not named)	LIMITED DEPLOYMENT
Alpine Eagle	Germany · Airborne counter-drone	€10m+ seed, 2025 (IQ Capital, General Catalyst, HCVC)	Customers not named; production with DeltaQuad; BLAZE integration with Origin Robotics	FIELD TRIAL
Origin Robotics	Latvia · Interceptor drones	Round size not disclosed	BLAZE in service with Latvia, Estonia and Belgium; multi-year Latvian framework (Dec 2025), SAFE-eligible	LIMITED DEPLOYMENT · PROCUREMENT

Here the money tells the story about who has conviction. Helsing’s July 2026 round, the largest ever for a European defence startup, brought in growth investors such as Lightspeed, General Catalyst, Goldman Sachs Alternatives, JPMorganChase and Canada’s CPP Investments alongside long-time backers Prima Materia and Accel, and Defense News noted the company remains predominantly European-owned. Quantum Systems’ $1.2 billion round was co-led by Blackstone, Noteus, Advent and Airbus, the first time a European prime has anchored a drone round of that size (see the Airbus Defence and Space profile). How Helsing turned software into a hardware business is unpacked in Helsing Explained: Europe’s Defence AI Firm, Drones, Funding.

The Silicon Valley names have arrived in force, but mostly at one company. Sequoia Capital led Stark’s $62 million seed in August 2025 and then co-led its €500 million Series C with Founders Fund ten months later, a round reported at €3.2 billion and put above €3.5 billion by the company. Bessemer led Auterion’s Series B and DFJ Growth led Cambridge Aerospace. Below the mega-rounds the same European early-stage names recur: Project A and Air Street Capital (Stark, ARX, Delian), Plural (Frankenburg, Helsing), HV Capital and Speedinvest (ARX), IQ Capital and General Catalyst (Alpine Eagle). The NATO Innovation Fund, a €1 billion-plus vehicle backed by 24 allies, sits in Stark, ARX and Tekever.

Corporate money is the newest layer. Dassault Aviation led Harmattan AI’s $200 million Series B in January 2026 and paired it with a partnership on embedded AI for the Rafale. Saab took a strategic stake in Comand AI in June 2026 (the Saab profile lists its venture activity), Airbus co-led Quantum Systems, and Helsing names Rheinmetall, Kongsberg and Saab as partners. Primes are buying access to autonomy and AI rather than building it, and doing so before the startups become competitors on the same tenders.

Public programmes: DIANA, the European Defence Fund, EIF, DASA and Germany’s missing agency

NATO’s Defence Innovation Accelerator for the North Atlantic (DIANA) is the widest funnel. On 10 December 2025 it announced its largest cohort yet, 150 companies from 24 NATO countries chosen from 3,680 submissions, starting in January 2026 with contractual funding and access to 16 accelerator sites and more than 200 test centres across the 32 allies. Its ten challenge areas include autonomy and unmanned systems, data-assisted decision making and contested electromagnetic environments. DIANA’s value to a startup is less the grant than the test-centre access and the end-user contact; it is a route to procurement, not procurement itself.

The European Defence Fund is the largest pot but the slowest to reach a startup. It holds nearly €7.3 billion for 2021 to 2027, has committed almost €6.5 billion since May 2021 and funded 57 projects in its 2025 results. The 2026 work programme puts €1 billion into 31 call topics, half for major capabilities such as interceptors, tanks and vessels, a quarter for critical technologies and a quarter for the EU Defence Innovation Scheme, which includes roughly €60 million for disruptive technologies and €60 million for SME calls. The equity route is faster. The European Investment Fund’s €175 million InvestEU Defence Equity Facility (€100 million of it from the EDF) had committed €161 million across nine funds by June 2026, including €50 million to Join Capital’s third fund in March 2026. The EIF put €376 million into defence and security in 2025 in total, and Defence Equity Facility 2.0 is raising towards an initial €1 billion as a fund-of-funds that starts investing once member-state commitments reach €250 million.

National schemes fill the gap. In the UK, the Defence and Security Accelerator (DASA), folded into UK Defence Innovation in February 2026, still runs themed competitions, but the more consequential British instrument has been direct contracting through the ASGARD framework and the interceptor and CORVUS awards described below. Germany is the anomaly. It has the Cyberagentur for cyber and AI research and the civilian agency SPRIND, whose March 2025 position paper asked for a military sister organisation, SPRIND.MIL, with €1 billion over five years to fund pilot projects, field tests and pilot-series buys at technology readiness levels 3 to 9, arguing that startups “often fail due to the long procurement cycles of the Bundeswehr”. As of September 2026 that agency remains a proposal; German startups have instead been carried by venture capital and by the Bundeswehr’s willingness to place framework orders directly.

Who is actually buying: contracts and deployments that count

The decisive test for a defence startup is a signed order from a ministry, and the Bundeswehr delivered the largest one so far. On 25 February 2026 the Bundestag budget committee approved two framework contracts for medium-range loitering munitions: 4,300 Helsing HX-2 and 2,200 Stark Virtus, each initial tranche worth about €270 million, with the German brigade in Lithuania as first recipient. The seven-year frameworks were drafted at up to €4.3 billion combined, but the committee capped spending at €1 billion per manufacturer and required qualification of both systems by the end of September 2026. HX-2 deliveries were scheduled to start in the third quarter of 2026 and finish in 2027, Virtus deliveries to complete by 2028. Both therefore sit at PROCUREMENT rather than OPERATIONAL in German service. The category itself is explained in our guide to loitering munitions.

The United Kingdom has been the second big buyer, and it has bought from more companies. In mid-January 2026 the Ministry of Defence awarded four-year contracts to 26 firms under the Digital Decision Accelerators for Defence framework, the primary delivery route for Project ASGARD, the Army’s decision-support and targeting programme backed by more than £1 billion; the list mixes Helsing, Anduril and Tekever with QinetiQ, Leonardo, BT and Oracle. In August 2026 the MOD selected Tekever’s AR5 for Project CORVUS, worth up to £400 million over ten years to replace the British Army’s Watchkeeper, built in Swindon and due in service before the end of 2026. Cambridge Aerospace, less than two years old, secured MOD contracts for its Skyhammer interceptor and a July 2026 award under the Low-Cost Effectors and Autonomous Platforms programme. ARX Robotics won an initial British Army order for UK-built Gereon vehicles; the European ground-robot market, where ARX competes with suppliers such as Milrem Robotics, is mapped in Europe’s Military UGV Programmes: Which Armies Are Buying.

The Baltic states and Belgium have been quicker than larger countries at ordering interceptor drones. Origin Robotics’ BLAZE is in service with Latvia, Estonia and Belgium, and Latvia signed a multi-year framework in December 2025 whose first contract, of undisclosed value, was approved by the cabinet on 21 April 2026; it is open to other European states and eligible for EU SAFE financing. In June 2026 Alpine Eagle and Origin agreed to integrate BLAZE with Alpine Eagle’s Sentinel sensor architecture and to build BLAZE in Germany. Whether kinetic interceptors or directed energy win the counter-drone budget is examined in Counter-Drone Lasers in Europe: Operational or Prototype?. Beyond these, the picture is thinner than the funding suggests: Harmattan AI cites French and British ministry contracts and one NATO government order, Comand AI says Prevail runs in units in France, Germany and Ukraine, Delian reports a deployment in one unnamed NATO country, and Frankenburg has no announced customer yet.

Ukraine as the demand signal

Almost every company in the table cites Ukraine as its first real customer, and the numbers are large enough to change what “startup” means. Auterion, Swiss-founded and now headquartered in Arlington, Virginia, with engineering in Zurich and Munich, is supplying 33,000 AI strike kits under a $50 million Pentagon contract and in July 2026 began delivering, with Ukrainian partner SkyFall, 50,000 Shrike strike drones fitted with its Skynode S autonomy module, paid for by an unnamed European NATO government. The swarm-control layer it sells to NATO customers is discussed in Drone Swarms in Europe: Countries, Companies and Programmes.

The pattern repeats across categories. Tekever’s AR5 accumulated more than 50,000 operational flight hours in Ukraine before the British Army chose it, and the Defence Secretary’s announcement led with the phrase “proven in Ukraine”. ARX has fielded several hundred Gereon vehicles there, the largest fleet of Western-designed UGVs in the country, and in September 2026 delivered the first Gereons from its joint production line with DEUTZ in Ulm twelve weeks after the line opened, all bound for Ukrainian forces. Stark’s Virtus and Helsing’s HX-2 were flying in Ukraine before the Bundeswehr order; Quantum Systems has operated there since 2022; Harmattan AI partnered with Ukrainian manufacturer Skyeton. For investors, Ukrainian use has become the proof of maturity no European test range can provide, and for ministries a shortcut through their own qualification processes.

Ukraine’s own innovation cluster, Brave1, shows how cheaply that proving ground is financed. By September 2026 it had issued more than 1,000 grants worth UAH 6.2 billion, about $139 million, since 2023; standard grants range from $11,200 to $180,000 depending on technology readiness, and unmanned aerial systems (215 projects) and ground vehicles (199) dominate. Ukrainian officials say 79 per cent of funded manufacturers could not have found comparable money elsewhere. Set against Helsing’s $1.8 billion, the entire Brave1 budget is a rounding error, which is exactly why European startups go there to test.

The bottlenecks: procurement cycles, export rules, investor limits and factories

That is where the industrial bottleneck starts. Procurement remains the first constraint even for the winners. Germany’s loitering-munition frameworks came with a hard qualification deadline and a cap that sends the budget committee back for every tranche above €1 billion, and SPRIND’s own diagnosis is that Bundeswehr procurement cycles kill startups before a first order. The UK has moved faster with open frameworks and ten-year ceilings, but a framework with 26 suppliers guarantees none of them revenue. A second European ministry is the milestone that separates a funded company from a supplier, and most companies in the table have not reached it.

Export controls and ownership rules are the second constraint, and they cut both ways. Export licensing and EU dual-use regulation slow sales outside NATO, which is why so many of these companies have opened plants or offices in customer countries: Stark and Tekever in Swindon, ARX in the UK and Poland, Cambridge Aerospace in Germany, Poland, Norway and Ukraine. At the same time governments are starting to require European ownership, most visibly through the EU’s SAFE instrument under which Origin Robotics’ Latvian-made BLAZE qualifies, and Defense News made a point of recording that Helsing “remains predominantly European-owned” after its American-heavy Series E. Every US growth cheque now has to be weighed against future eligibility for European money.

The third constraint is the investor base itself. EIF co-investment comes with the EIB Group’s exclusion and restriction principles, and many European pension funds and banks still run policies that keep them away from weapons makers, which is why the Defence Equity Facility is framed around dual-use technology rather than munitions. The consequence is visible in the table: the companies that make things that explode (Stark, Frankenburg, Cambridge Aerospace) raised their largest cheques mostly from US venture and growth funds, while dual-use companies (ICEYE, Quantum Systems, Comand AI) could also tap Finnish pension funds, Airbus, Saab and a Gulf sovereign investor. Stark’s move into uncrewed surface vessels, examined in Unmanned Surface Vessels in Europe: Who Builds, What Works and in our report on its Vanta collaboration with MBDA, is partly a way of widening that customer base.

The last bottleneck is the one the money is meant to solve: factories. Stark says more than 80 per cent of its €500 million goes to manufacturing and R&D with a target of thousands of systems a month; ICEYE plans to double satellite output from 50 to 100 a year by 2028; Frankenburg wants two European sites building more than 100 missiles a day each; Cambridge Aerospace raised $500 million in four months to expand production for its UK contracts. None of these rates has been demonstrated at scale, and the Bundeswehr’s insistence on qualification before delivery is a reminder that a valuation is not a production line. The 2026 rounds bought Europe’s defence startups the capital to industrialise. The 2027 contracts will show which of them did.

Frequently asked questions

How much did European defence startups raise in 2025?

Dealroom and the NATO Innovation Fund counted $8.7 billion of venture capital for European defence, security and resilience startups in 2025, up 55 per cent on 2024, with $4.7 billion in late-stage rounds. The UK ($2.9 billion) and Germany ($2.1 billion) took most of the total.

Which European defence startups are unicorns in 2026?

Companies with verified private valuations above $1 billion in 2026 include Helsing ($18 billion), ICEYE (more than €10 billion), Quantum Systems ($8 billion), Tekever ($6.4 billion), Stark (above €3.2 billion), Cambridge Aerospace ($3.4 billion) and Harmattan AI ($1.4 billion). Stark, Cambridge Aerospace and Harmattan AI all crossed the threshold during 2026.

Which startups have real defence contracts rather than pilots?

The Bundeswehr’s February 2026 frameworks for 4,300 Helsing HX-2 and 2,200 Stark Virtus loitering munitions, the UK’s up-to-£400 million CORVUS award to Tekever, UK MOD interceptor contracts for Cambridge Aerospace, Latvia’s multi-year BLAZE framework with Origin Robotics and the British Army’s initial Gereon order from ARX Robotics are the clearest signed procurements. Most other companies still rely on Ukrainian deliveries or single-country pilots.

What is NATO DIANA and how much does it fund?

DIANA is NATO’s Defence Innovation Accelerator. Its 2026 cohort, announced on 10 December 2025, took 150 companies from 24 countries out of 3,680 applicants and gives them contractual funding plus access to 16 accelerator sites and more than 200 test centres across the 32 allies. It is a route to end-users and testing rather than a procurement contract.

Why do European defence startups test in Ukraine?

Because Ukrainian forces use systems at scale and report back quickly. Tekever logged more than 50,000 flight hours there before its UK selection, ARX fielded several hundred Gereon UGVs, Auterion is delivering tens of thousands of strike kits, and Stark’s Virtus and Helsing’s HX-2 flew there before the Bundeswehr ordered them. Ministries and investors now treat Ukrainian use as the main evidence of maturity.