What are the latest funding news in the defense tech market? (April 2026)
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Defense tech funding has kept its momentum into April 2026, with rounds spanning pre-seed experiments and multi-billion-dollar growth rounds.
The 12 deals below cover counter-UAS systems, hypersonic strike, undersea autonomy, and mission-critical software for warfighters.
Europe has been especially active, with sovereign missile and hypersonic programs pulling in meaningful capital from specialist defense investors.
And if you want to better understand this new industry, you can download our pitch covering the defense tech market.
Insights
- Counter-UAS is now the single densest category in defense tech funding, with 4 of the 12 rounds (Stendr, Thermopylae, CHAOS Industries, MatrixSpace) built directly around detecting, tracking, or intercepting hostile drones.
- Shield AI's $2B package at a $12.7B valuation is roughly 4x the combined capital raised by all 11 other companies on this list, showing how concentrated growth-stage defense autonomy dollars really are.
- European sovereign capability rounds are no longer a niche theme, with Frankenburg Technologies, Hypersonica, and Stendr collectively raising about $73M across pre-seed to Series A to close missile and hypersonic gaps.
- Strategic corporate investors are showing up earlier in the cap table, with L3Harris backing MatrixSpace at Series B and RTX participating in Code Metal's Series B, signaling primes want direct pipelines into defense software and sensing.
- Plural has emerged as one of the most active European defense tech leads of this window, anchoring both Frankenburg and Hypersonica in a two-week span and underwriting European strike and air-defense capability.
- Hypersonic and high-Mach aircraft pulled in roughly $373M across Hermeus and Hypersonica combined, confirming speed is becoming a fundable category rather than a research curiosity.
- Autonomy software orchestrating many robots, not just building one, is now a distinct venture category, with Breaker raising a $6M seed purely to coordinate fleets of military robots from a single operator.
- Mission-critical software infrastructure is attracting growth-stage dollars, with Code Metal hitting a $1.25B valuation on $125M for verifiable AI code translation aimed at defense programs.
- Undersea autonomy is quietly scaling, with Vatn Systems' $60M Series A funding US AUV manufacturing capacity as naval unmanned demand rises across allied fleets.
- Pre-seed defense tech is alive and well, with Stendr and Thermopylae Aerospace raising a combined $7M to develop first-generation counter-drone and interceptor systems.
- India's defense tech ecosystem produced a standout with Constelli's $20M round led by General Catalyst, extending electronic warfare and signal processing capabilities into a market historically dominated by Western vendors.
As this chart shows, and as featured in our defense tech market deck, search interest in defense tech has risen sharply
Summary table of the latest funding deals in the defense tech market as of April 2026
We define the defense tech market as product and platform technologies built to deliver military or national-security mission capabilities and sold into defense, intelligence, or closely related national-security buyers.
We include autonomy/robotics, C2 and mission software, ISR and sensing, resilient communications, cyber capabilities, space security technologies, and other mission systems where defense or national-security is a primary go-to-market.
We exclude general government IT services, generic enterprise software/security with no mission focus, purely commercial aerospace/industrial tech without a defense go-to-market, and public-safety tools that are not primarily defense or national-security mission oriented.
You can also read our detailed analysis to understand how funding activity in the defense tech market has evolved over the last few years.
We also have a quarter-by-quarter analysis of funding activity in the market here.
Finally, you can check our complete list of fundraising deals for the defense tech market (we update this list every quarter) as well as our ranking of the most funded startups.
| Name | When | Amount in $ | Round Type | Category |
|---|---|---|---|---|
| MatrixSpace | 15 October 2025 | $20M | Series B | Counter-UAS & ISR and sensing |
| CHAOS Industries | 13 November 2025 | $510M | Series D | Counter-UAS & resilient communications |
| Thermopylae Aerospace | 1 December 2025 | $1.6M | Pre-seed | Counter-UAS & air defense |
| Vatn Systems | 10 December 2025 | $60M | Series A | Naval autonomy & robotics |
| Hypersonica | 10 February 2026 | $25M | Series A | Strike systems & mission systems |
| Breaker | 17 February 2026 | $6M | Seed | Mission software & autonomy orchestration |
| Code Metal | 19 February 2026 | $125M | Series B | Mission-critical software |
| Frankenburg Technologies | 24 February 2026 | $35M | Series A | Air defense & mission systems |
| Constelli | 27 February 2026 | $20M | Series A | Electronic warfare & ISR and sensing |
| Shield AI | 26 March 2026 | $2B | Series G | Autonomy and robotics & mission software |
| Hermeus | 7 April 2026 | $350M | Series C | Defense aviation & autonomy |
| Stendr | 15 April 2026 | $5.4M | Pre-seed | Counter-UAS & autonomy |
All the latest funding deals during in the defense tech market as of April 2026
Stendr secured a $5.4M pre-seed round in April 2026 to build AI-native drone defense systems
When was it?
The Stendr round was announced on 15 April 2026.
Who are they?
Stendr is building an AI-native drone defense stack that detects, tracks, and counters hostile drones for defense users.
Geographical focus?
Stendr is Europe-first rather than tied to a single country, positioning itself as a sovereign European counter-UAS player.
Why do we include them in the defense tech market?
Stendr sits squarely in counter-UAS and ISR sensing with autonomy, built for modern defense missions rather than generic commercial drone operations.
What is the company stage?
Stendr is pre-product and at early MVP, having just closed a pre-seed while still developing its first AI-native defense systems.
How much did they raise?
Stendr raised $5.4M in this round.
What round is it?
This was a pre-seed round for Stendr.
Why did they raise?
Stendr raised the capital to build out AI-native hardware and software for drone defense and move faster on sovereign European defense capability.
Hermeus closed a $350M Series C in April 2026 at a $1B valuation to build unmanned hypersonic fighters
When was it?
The Hermeus financing was announced on 7 April 2026.
Who are they?
Hermeus is developing high-Mach autonomous aircraft for defense missions, including unmanned hypersonic fighters for the American warfighter.
Geographical focus?
Hermeus is focused on the US defense aviation market as its primary go-to-market.
Why do we include them in the defense tech market?
Hermeus fits autonomy and robotics with mission systems, because it is explicitly building defense aircraft for warfighter use rather than commercial aviation first.
What is the company stage?
Hermeus is at growth and early scale-up, having flown demonstrators while financing manufacturing and program execution.
How much did they raise?
Hermeus raised $350M total, made up of $200M equity and $150M debt, at a $1B post-money valuation.
What round is it?
This was a Series C round for Hermeus.
Why did they raise?
Hermeus raised to keep pushing its flight-test roadmap and scale toward operational defense aviation programs and production.
This chart, included in our defense tech market deck, compares the main business model options for defense AI contractors
Shield AI raised a $2B package in March 2026 at a $12.7B valuation to scale mission autonomy
When was it?
The Shield AI raise was announced on 26 March 2026.
Who are they?
Shield AI builds AI autonomy software and military aircraft and drone systems for defense customers worldwide.
Geographical focus?
Shield AI is global, serving allied militaries with especially strong US Department of Defense traction.
Why do we include them in the defense tech market?
Shield AI is a textbook autonomy and robotics plus C2 and mission software player, with mission autonomy for military aircraft and drones as its core business.
What is the company stage?
Shield AI is at late-stage growth, with major defense programs, an active M&A move, and multi-product deployment across allied customers.
How much did they raise?
Shield AI raised a $2B total package, consisting of $1.5B Series G equity plus $500M in preferred equity financing.
What round is it?
This was a Series G round plus a preferred financing facility.
Why did they raise?
Shield AI raised to support future growth and the Aechelon acquisition while scaling mission autonomy and aircraft programs.
Constelli bagged a $20M round in February 2026 from General Catalyst and others for electronic warfare payloads
When was it?
The Constelli round was announced on 27 February 2026.
Who are they?
Constelli builds electronic intelligence, signal processing, radar, and communications payloads for defense and aerospace systems.
Geographical focus?
Constelli has a strong India base while selling into global defense and aerospace platform makers.
Why do we include them in the defense tech market?
Constelli fits ISR and sensing plus resilient communications and electronic warfare, because its products are mission payloads for drones, naval vessels, satellites, and ground systems.
What is the company stage?
Constelli is at PMF and early growth, with a defined product set and capital to expand R&D and prototyping.
How much did they raise?
Constelli raised $20M in this round.
What round is it?
This was described by multiple outlets as a Series A round for Constelli.
Why did they raise?
Constelli raised to fund R&D on next-generation electronic warfare and communications payloads and build out rapid prototyping infrastructure.
This chart, included in our defense tech market deck, shows why Anduril is winning in defense tech
Frankenburg Technologies raised a €30M Series A in February 2026 to build European missile manufacturing capacity
When was it?
The Frankenburg Technologies deal was announced on 24 February 2026.
Who are they?
Frankenburg Technologies is building affordable, mass-manufacturable missile defense systems and sovereign missile manufacturing capacity for Europe.
Geographical focus?
Frankenburg Technologies is clearly Europe-focused, with a stated mission around European air defense.
Why do we include them in the defense tech market?
Frankenburg Technologies is pure mission systems and air defense, sold into the national-security market as a direct response to Europe's missile defense bottleneck.
What is the company stage?
Frankenburg Technologies is at MVP and early PMF, having already flight-tested and now funding manufacturing footprint and production scale-up.
How much did they raise?
Frankenburg Technologies raised €30M, about $35M at announcement.
What round is it?
This was a Series A round for Frankenburg Technologies.
Why did they raise?
Frankenburg Technologies raised to stand up multi-site missile production and expand sovereign manufacturing in the UK and Germany.
Code Metal closed a $125M Series B in February 2026 at a $1.25B valuation for verifiable defense software
When was it?
The Code Metal financing was announced on 19 February 2026.
Who are they?
Code Metal provides verifiable AI code translation and optimization for mission-critical software, including defense programs.
Geographical focus?
Code Metal is US-centric with defense and aerospace customers, while also serving semis and edge systems buyers.
Why do we include them in the defense tech market?
Code Metal sits in C2 and mission software with cyber-adjacent software infrastructure, since it is explicitly positioned for mission-critical defense environments and counts US Air Force, RTX, and L3Harris among its reference sectors.
What is the company stage?
Code Metal is at growth stage, with a scaled commercial product, deep enterprise investors, and a sizable Series B.
How much did they raise?
Code Metal raised $125M at a $1.25B valuation.
What round is it?
This was a Series B round for Code Metal.
Why did they raise?
Code Metal raised to scale trusted AI-driven software tooling for regulated, mission-critical environments where proof and verification matter more than raw code generation speed.
In our defense tech market deck, we identify pain points entrepreneurs should prioritize
Breaker raised a $6M seed round in February 2026 to orchestrate fleets of autonomous military robots
When was it?
The Breaker funding was announced on 17 February 2026.
Who are they?
Breaker builds a platform-agnostic AI agent that lets one operator control and coordinate many autonomous military robots.
Geographical focus?
Breaker appears to straddle the US and Australia, reflecting its investor base and target customers.
Why do we include them in the defense tech market?
Breaker is cleanly autonomy and robotics plus mission software, because its core product is command-and-control software for autonomous defense systems.
What is the company stage?
Breaker is at MVP and early PMF, with a defined software product and early investor conviction but still at seed stage.
How much did they raise?
Breaker raised $6M in this round.
What round is it?
This was a seed round for Breaker.
Why did they raise?
Breaker raised to accelerate development and deployment of its AI-agent software for multi-robot military operations, especially in jammed or denied environments.
Hypersonica raised a €23.3M Series A in February 2026 to deliver Europe's first sovereign hypersonic strike capability
When was it?
The Hypersonica round was announced on 10 February 2026.
Who are they?
Hypersonica is building Europe's sovereign hypersonic strike capability, with an Anglo-German base.
Geographical focus?
Hypersonica is Europe-focused, with a clear Europe-first mission rather than global ambition.
Why do we include them in the defense tech market?
Hypersonica is pure mission systems and strike systems, sold into European defense modernization rather than commercial aerospace.
What is the company stage?
Hypersonica is at MVP and early PMF, having just emerged from stealth but already completed a hypersonic test flight.
How much did they raise?
Hypersonica raised €23.3M, roughly $25M at announcement.
What round is it?
This was a Series A round for Hypersonica.
Why did they raise?
Hypersonica raised to move Europe's hypersonic program faster from prototype and test milestones toward sovereign deployable capability.
This market map, featured in our defense tech market deck, highlights top companies and startups in the defense tech market
Vatn Systems raised a $60M Series A in December 2025 to redefine underwater naval warfare at scale
When was it?
The Vatn Systems round was announced on 10 December 2025.
Who are they?
Vatn Systems builds autonomous underwater vehicles designed for the US military and allies, with undersea autonomy as its core.
Geographical focus?
Vatn Systems is US-centric and describes itself as the largest AUV manufacturer in the United States.
Why do we include them in the defense tech market?
Vatn Systems is a direct autonomy and robotics plus naval mission systems company serving defense buyers.
What is the company stage?
Vatn Systems is at PMF and growth, financing manufacturing scale as a leading US AUV producer.
How much did they raise?
Vatn Systems raised $60M in this round.
What round is it?
This was a Series A round for Vatn Systems.
Why did they raise?
Vatn Systems raised to expand manufacturing and accelerate development of autonomous undersea systems at naval scale.
Thermopylae Aerospace raised a $1.6M pre-seed in December 2025 to build low-cost interceptor drones for Ukraine
When was it?
The Thermopylae Aerospace round was reported on 1 December 2025.
Who are they?
Thermopylae Aerospace is building low-cost autonomous interceptor drones for air defense, with a strong Ukraine mission focus.
Geographical focus?
Thermopylae Aerospace is Ukrainian-US in orientation, targeting the wartime air-defense problem set.
Why do we include them in the defense tech market?
Thermopylae Aerospace is pure counter-UAS and autonomy robotics plus air defense, aimed directly at stopping aerial threats in wartime conditions.
What is the company stage?
Thermopylae Aerospace is at idea and early MVP, having launched in 2025 and raised to develop and test its first platform.
How much did they raise?
Thermopylae Aerospace raised $1.6M in this round.
What round is it?
This was a pre-seed round for Thermopylae Aerospace.
Why did they raise?
Thermopylae Aerospace raised to develop and test a cheap interceptor drone platform for Ukraine's air-defense problem set.
This chart, included in our defense tech market deck, shows annual funding in defense tech startups
CHAOS Industries raised a $510M Series D in November 2025 at a $4.5B valuation for next-generation defense systems
When was it?
The CHAOS Industries raise was announced on 13 November 2025.
Who are they?
CHAOS Industries builds counter-drone radar, sensing, and communications systems for defense and border-security users.
Geographical focus?
CHAOS Industries is US-led with allied applicability across its product lines.
Why do we include them in the defense tech market?
CHAOS Industries sits firmly in ISR and sensing plus counter-UAS and resilient communications, designed around military and border threats.
What is the company stage?
CHAOS Industries is at growth stage, having already raised $1B in total while scaling product development and manufacturing.
How much did they raise?
CHAOS Industries raised $510M at a $4.5B valuation.
What round is it?
This was a Series D round for CHAOS Industries.
Why did they raise?
CHAOS Industries raised to accelerate next-generation defense systems and ramp manufacturing as drone and border threats intensify.
MatrixSpace closed a $20M Series B in October 2025 to scale AI radar for counter-drone defense
When was it?
The MatrixSpace round was announced on 15 October 2025.
Who are they?
MatrixSpace makes portable AI-enhanced radar and multi-sensor systems for counter-UAS and airspace security.
Geographical focus?
MatrixSpace is US-based and serves counter-drone and airspace security buyers across allied markets.
Why do we include them in the defense tech market?
MatrixSpace belongs to ISR and sensing plus counter-UAS, because the funded product line is explicitly portable AI radar for counter-drone detection.
What is the company stage?
MatrixSpace is at PMF and growth, with commercial products in market and strategic defense investors on the cap table.
How much did they raise?
MatrixSpace raised $20M in this round.
What round is it?
This was a Series B round for MatrixSpace.
Why did they raise?
MatrixSpace raised to scale AI radar products for counter-drone detection and expand the platform with stronger strategic backing.
Related blog posts
- How strong is fundraising in the defense tech market right now?
- What is the latest news in defense tech?
- How large is the defense tech market today?
- The evolution of funding activity in defense tech
- The main fundraising trends in defense tech
- All funding deals in defense tech
- Which companies have raised the most funding in defense tech?
