What are the latest funding news in the defense tech market? (September 2026)
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Defense tech fundraising remained concentrated in a small number of large production, autonomous-systems and mission-software rounds in the latest tracked period.
The 12 disclosed deals below represented about $5.1 billion in announced financing, including equity rounds, debt-backed packages and revolving credit facilities.
And if you want to better understand this new industry, you can download our pitch covering the defense tech market.
Insights
- The five Series C-or-later financings accounted for about 97% of disclosed defense tech funding in this set, showing that investors are concentrating capital behind companies already scaling production and field deployment.
- Helsing, Hadrian and Castelion together represented roughly 83% of announced capital, underlining how defense tech funding is increasingly tied to industrial capacity rather than software experimentation alone.
- Four of the 12 deals focused directly on counter-drone systems, from autonomous interceptors to directed-energy platforms, making counter-UAS one of the clearest product clusters in current defense tech funding.
- Seven of the 12 rounds were $61 million or less, so the market still supports early-stage teams even as billion-dollar defense manufacturing rounds attract most of the capital.
- Nine companies in this list had a primary United States focus, while Airbility, Terra Industries and Helsing show that South Korea, Africa and Europe are also producing investable national-security platforms.
- At least eight companies were building physical mission systems, manufacturing capacity or resilient energy infrastructure, reinforcing that defense tech growth depends on hardware production as much as AI and software.
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 September 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 |
|---|---|---|---|---|
| Easy Aerial | 1 September 2026 | $20M | Series B | Defense Autonomy & ISR Drones |
| Aslan | 1 September 2026 | $20.8M | Venture Round | National Security Mission Software & Investigative AI |
| Airbility | 1 September 2026 | About $4.7M | Series A | Counter-UAS & Defense Autonomy |
| Mara | 26 August 2026 | $7M | Pre-seed | Counter-UAS & Autonomous Defense Systems |
| Castelion | 19 August 2026 | $1.05B | Series C & Credit Facility | Hypersonic Strike Systems & Defense Manufacturing |
| SMACK Technologies | 18 August 2026 | $61M | Series B | C2 Mission Software & Edge Autonomy |
| Terra Industries | 17 August 2026 | $18M | Seed Extension | Defense Autonomy & Mission Infrastructure |
| Neros Technologies | 11 August 2026 | $250M | Series C | Defense Drones & Counter-UAS Autonomy |
| Hadrian | 6 August 2026 | $1.37B | Series D | Defense Industrial Base & Advanced Manufacturing |
| Aurelius Systems | 5 August 2026 | $40M | Series A | Counter-UAS & Directed-Energy Systems |
| Antares | 27 July 2026 | $470M | Series C | Defense Energy & Mission Infrastructure |
| Helsing | 13 July 2026 | $1.8B | Series E | Military AI, Autonomy & Mission Software |
All the latest funding deals during in the defense tech market as of September 2026
Easy Aerial raised $20 million in September 2026 for persistent surveillance drone systems.
When was it?
Easy Aerial announced the Series B financing on 1 September 2026.
Who are they?
Easy Aerial builds tethered and autonomous drone-in-a-box systems for persistent aerial surveillance in demanding environments.
Geographical focus?
Easy Aerial is a United States company with systems relevant to United States and allied defense customers.
Why do we include them in the defense tech market?
Easy Aerial belongs in defense tech because its military-grade drone systems support ISR, force protection and mobile military operations.
What is the company stage?
Easy Aerial is in commercial growth, with Blue UAS-listed systems and active defense deployments.
How much did they raise?
Easy Aerial raised $20 million in this financing round.
What round is it?
Easy Aerial raised a Series B round led by Insight Partners and Entrée Capital.
Why did they raise?
Easy Aerial raised the capital to expand manufacturing, product development and defense-market deployments.
Aslan raised $20.8 million in September 2026 to scale AI national-security investigations.
When was it?
Aslan publicly launched and announced its funding on 1 September 2026.
Who are they?
Aslan builds human-supervised AI agents that conduct multi-day digital investigations across criminal and adversarial online networks.
Geographical focus?
Aslan initially focuses on United States federal law-enforcement and intelligence customers.
Why do we include them in the defense tech market?
Aslan belongs in defense tech because its investigative agents are designed for defense, intelligence and homeland-security missions.
What is the company stage?
Aslan is at an early commercial and launch stage, with early agency deployments and a small forward-deployed team.
How much did they raise?
Aslan raised $20.8 million in the announced financing.
What round is it?
Aslan described the financing as a venture round and did not publicly specify a conventional series label.
Why did they raise?
Aslan raised the capital to expand its technical team, add forward-deployed engineers and reach more national-security customers.
This chart, included in our defense tech market deck, compares the main business model options for defense AI contractors
Airbility raised about $4.7 million in September 2026 to advance autonomous drone interception.
When was it?
Airbility announced the Series A round on 1 September 2026.
Who are they?
Airbility develops autonomous aircraft and integrated systems that detect and intercept hostile drones in flight.
Geographical focus?
Airbility is based in South Korea and is pursuing customers in the Middle East, Southeast Asia and Latin America.
Why do we include them in the defense tech market?
Airbility belongs in defense tech because its counter-drone aircraft and kill-chain systems are built for military air-defense missions.
What is the company stage?
Airbility is moving from prototype development into early commercialization and production preparation.
How much did they raise?
Airbility raised KRW 6.5 billion, or about $4.7 million, in the Series A round.
What round is it?
Airbility raised a Series A round led by Saje Partners, with Stonebridge Ventures and Industrial Bank of Korea participating.
Why did they raise?
Airbility raised the capital to improve its interceptor aircraft, upgrade onboard AI and build production capacity.
Mara raised $7 million in August 2026 to move autonomous counter-drone systems toward deployment.
When was it?
Mara announced the pre-seed round on 26 August 2026.
Who are they?
Mara builds Spike, an integrated system that detects incoming FPV drones and launches low-cost autonomous interceptors.
Geographical focus?
Mara serves United States and allied defense markets, with planned use cases for military units and protected infrastructure.
Why do we include them in the defense tech market?
Mara belongs in defense tech because Spike is a purpose-built counter-UAS system for protecting personnel, vehicles and military positions.
What is the company stage?
Mara is at a prototype and early field-validation stage, moving from testing toward operational deployments.
How much did they raise?
Mara raised $7 million in new funding.
What round is it?
Mara raised a pre-seed round led by Khosla Ventures, with a16z Speedrun and other investors participating.
Why did they raise?
Mara raised the capital to accelerate engineering, field testing, manufacturing and deployment of the Spike platform.
This chart, included in our defense tech market deck, shows why Anduril is winning in defense tech
Castelion raised a $1.05 billion financing package in August 2026 for hypersonic missile production.
When was it?
Castelion announced the financing package on 19 August 2026.
Who are they?
Castelion designs and produces low-cost, mass-manufacturable hypersonic strike weapons for United States national-security missions.
Geographical focus?
Castelion is focused on the United States defense market and allied national-security customers.
Why do we include them in the defense tech market?
Castelion belongs in defense tech because it develops hypersonic mission systems and the manufacturing capacity required to field them at scale.
What is the company stage?
Castelion is in a growth stage, with a focus on scaling production and expanding its strike-systems portfolio.
How much did they raise?
Castelion announced $800 million in equity financing plus a $250 million committed revolving credit facility.
What round is it?
Castelion raised a Series C alongside the revolving credit facility.
Why did they raise?
Castelion raised the capital to increase Blackbeard missile production and accelerate longer-range strike and defensive systems.
SMACK Technologies raised $61 million in August 2026 for AI decision systems at the tactical edge.
When was it?
SMACK Technologies announced the Series B financing on 18 August 2026.
Who are they?
SMACK Technologies builds AI-enabled software and hardware that help military operators make and execute decisions across the battlefield.
Geographical focus?
SMACK Technologies focuses on United States defense customers and Joint Force operational users.
Why do we include them in the defense tech market?
SMACK Technologies belongs in defense tech because its platforms support command-to-edge decision-making and intelligent autonomy for warfighters.
What is the company stage?
SMACK Technologies is in commercial growth, with mission software moving into production across United States military branches.
How much did they raise?
SMACK Technologies raised $61 million in new capital.
What round is it?
SMACK Technologies raised a Series B led by Costanoa Ventures and First In.
Why did they raise?
SMACK Technologies raised the capital to develop Alpha hardware, expand its AI models and recruit engineering talent.
In our defense tech market deck, we identify pain points entrepreneurs should prioritize
Terra Industries raised $18 million in August 2026, bringing its seed round to $52 million.
When was it?
Terra Industries announced the seed extension on 17 August 2026.
Who are they?
Terra Industries builds autonomous defense systems and security infrastructure, including drones and mine-detecting combat vehicles.
Geographical focus?
Terra Industries focuses on Africa and other Global South markets that need locally relevant defense capabilities.
Why do we include them in the defense tech market?
Terra Industries belongs in defense tech because its products are designed for defense customers that need autonomous systems and mission infrastructure.
What is the company stage?
Terra Industries is in early commercial growth, with deployments and contracts supporting expansion.
How much did they raise?
Terra Industries raised $18 million in new capital, bringing the total seed round to $52 million.
What round is it?
Terra Industries raised a seed extension.
Why did they raise?
Terra Industries raised the capital to expand production, deployments and its defense footprint across Global South markets.
Neros Technologies raised $250 million in August 2026 to expand autonomous and interceptor drone production.
When was it?
Neros Technologies announced the Series C round on 11 August 2026.
Who are they?
Neros Technologies builds tactical drones, autonomous FPV platforms and interceptor drones for modern military operations.
Geographical focus?
Neros Technologies focuses on United States and allied defense customers that need affordable unmanned systems at scale.
Why do we include them in the defense tech market?
Neros Technologies belongs in defense tech because its drones and counter-UAS interceptors are designed for military mission use.
What is the company stage?
Neros Technologies is in rapid commercial and production growth, with a $2.5 billion post-money valuation.
How much did they raise?
Neros Technologies raised $250 million in the announced round.
What round is it?
Neros Technologies raised a Series C co-led by Sequoia Capital and American Strategic Technology Fund.
Why did they raise?
Neros Technologies raised the capital to accelerate development and production ramps for new autonomous drone and interceptor programs.
This market map, featured in our defense tech market deck, highlights top companies and startups in the defense tech market
Hadrian raised $1.37 billion in August 2026 to expand automated defense manufacturing capacity.
When was it?
Hadrian announced the Series D financing on 6 August 2026.
Who are they?
Hadrian operates automated factories that produce precision components for aerospace and defense programs.
Geographical focus?
Hadrian is focused on building manufacturing capacity in the United States.
Why do we include them in the defense tech market?
Hadrian belongs in defense tech because its factories support the industrial base that produces parts for critical military systems.
What is the company stage?
Hadrian is at a late growth stage and is expanding large-scale manufacturing operations at an approximately $8 billion valuation.
How much did they raise?
Hadrian raised $1.37 billion in fresh financing.
What round is it?
Hadrian raised a Series D round backed by a broad group of institutional and venture investors.
Why did they raise?
Hadrian raised the capital to build more automated factories and increase United States defense-manufacturing capacity.
Aurelius Systems raised $40 million in August 2026 to accelerate laser counter-drone deployments.
When was it?
Aurelius Systems announced the Series A round on 5 August 2026.
Who are they?
Aurelius Systems develops Archimedes, an autonomous directed-energy platform that detects, tracks and defeats drone threats.
Geographical focus?
Aurelius Systems focuses on the United States defense market and defense customers protecting troops and critical infrastructure.
Why do we include them in the defense tech market?
Aurelius Systems belongs in defense tech because its directed-energy platform is built for military counter-UAS and base-protection missions.
What is the company stage?
Aurelius Systems is in an early commercial deployment stage, with a growing production and fielding footprint.
How much did they raise?
Aurelius Systems raised $40 million in the Series A financing.
What round is it?
Aurelius Systems raised a Series A co-led by Draper Associates and KAS Venture Partners.
Why did they raise?
Aurelius Systems raised the capital to advance engineering, expand production, strengthen supply-chain resilience and speed customer delivery.
This chart, included in our defense tech market deck, shows annual funding in defense tech startups
Antares raised $470 million in July 2026 to develop nuclear microreactors for military missions.
When was it?
Antares announced the Series C financing on 27 July 2026.
Who are they?
Antares develops compact nuclear microreactors intended to provide resilient power for military bases, remote sites and space missions.
Geographical focus?
Antares focuses on United States defense, remote-energy and space customers.
Why do we include them in the defense tech market?
Antares belongs in defense tech because resilient energy for austere military locations is a direct national-security mission requirement.
What is the company stage?
Antares is at a pre-commercial demonstration and qualification stage for deployable microreactor systems.
How much did they raise?
Antares raised $470 million, including $370 million in equity and $100 million in debt.
What round is it?
Antares raised a Series C co-led by Paradigm and Caffeinated Capital.
Why did they raise?
Antares raised the capital to advance reactor development, licensing, demonstrations and manufacturing for military deployment.
Helsing raised $1.8 billion in July 2026 to scale military AI and autonomous defense systems.
When was it?
Helsing announced the Series E funding round on 13 July 2026.
Who are they?
Helsing builds military AI, autonomous strike systems, electronic-warfare capabilities and mission software for modern armed forces.
Geographical focus?
Helsing serves European, NATO and Ukraine-focused defense markets, with expanding international relevance.
Why do we include them in the defense tech market?
Helsing belongs in defense tech because military AI, autonomy and electronic warfare are central products for defense and intelligence buyers.
What is the company stage?
Helsing is a late-stage defense contractor with scaled programs, manufacturing plans and an approximately $18 billion valuation.
How much did they raise?
Helsing raised $1.8 billion in the announced financing.
What round is it?
Helsing raised a Series E round backed by a large European and global investor group.
Why did they raise?
Helsing raised the capital to expand military AI platforms, autonomous systems, production capacity and European defense deployments.
Related blog posts
- The evolution of funding activity in defense tech
- The main fundraising trends in defense tech
- How strong is fundraising in the defense tech market right now?
- What are the top startups in the defense tech market?
