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# 7 Open Categories in Defense-Tech Investment for 2026
- URL: https://www.adriadefense.com/7-open-categories-in-defense-tech-investment-for-2026/
- Published: 2026-07-27T08:00:59.000Z
- Updated: 2026-07-27T08:00:58.000Z
- Description: Drones and counter-drones are fully funded. Missiles, subsea, space, propulsion, and biodefense are the seven defense-tech investment categories still open in 2026, several map directly onto Western Balkans capability.
- Author: AdriaDefense Desk
- Tags: Analysis, Industry, #Defense-Tech Investment, Defence Tech, Startups, #counter-drones, #FAMM program, Anduril

**Defense-tech investment in 2026 has a paradox at its core: the sector has never raised more money, yet most of its highest-priority categories still have no dominant, fully funded winner.** Twenty-six new billion-dollar defense startups have emerged globally since the start of 2025, and in Europe alone the sector pulled in **8.7 billion dollars** in 2025 — a 55 percent jump year-on-year, according to **Dealroom** and the **NATO Innovation Fund**. Drones and counter-drones absorbed that first wave so thoroughly that the category now looks closed to new entrants.

**Key takeaways:**

- **Seven categories remain open** for new entrants: missiles, propulsion, subsea, space, nuclear energy, cyber offense, and biodefense
- **Drones and counter-drones are the one closed category** — too many funded winners for a newcomer to break in
- **CEE is the fastest-growing region** for defense-tech deal activity in Europe, even where funding volume still trails the UK and Germany
- **Missile production is shifting from bespoke to mass-scale**, led by the US's **12.6 billion dollar** FAMM program
- **Western Balkans capability** — legacy ammunition plants, Croatian UGV expertise, Slovenian simulation know-how — lines up directly with several of these gaps

### Missile Investment: From Bespoke Weapon to Mass-Produced Commodity

Missiles were historically low-volume and expensive, built in the hundreds for wars expected to be short. That assumption no longer holds. Russia now fires missiles into Ukraine by the thousands, and in a twelve-day exchange in June 2025, **Iran launched roughly 550 ballistic missiles at Israel** — intercepting them consumed a quarter of America's THAAD stockpile.

Washington's answer is the **Family of Affordable Mass Missiles (FAMM)**: a **12.6 billion dollar** Pentagon program to procure **28,000 low-cost cruise missiles**, built on a saturation doctrine — cheap weapons fired in volume to exhaust an adversary's expensive interceptors. **Castelion**, **Anduril**, the bootstrapped **Co-Aspire**, and Kongsberg's **Zone5** have already won large contracts.

Europe followed at the Ankara NATO summit this month: twelve members signed onto **Deep Precision Strike**, a UK-led, **50 billion dollar**, ten-year pledge for long-range strike, alongside interceptor programs from MBDA and Destinus. Ukraine's **Fire Point**, maker of the 3,000-kilometer **Flamingo**, and **Hypersonica**, which just flew Europe's first privately funded hypersonic test, are the first serious challengers in a field still wide open.

### Propulsion Technology: The Bottleneck Behind Every Defense System

Every missile, drone, and interceptor in this buildup needs a motor, and the supply chain is stretched thin. Russia launched around **11,000 Shahed-type drones** at Ukraine in 2024 and **more than 38,000 in 2025**; the newest jet-powered variants fly at 500–600 km/h — too fast for the propeller-based interceptors built for earlier versions. A turbojet can close that gap, but spool-up takes up to two minutes, from one of the industry's tightest supply chains.

That bottleneck is drawing its own generation of entrants: **Ursa Major** in rocket motors, **Volund Manufacturing** in low-cost gas turbines, **Venus Aerospace** in hypersonic rocket engines, and **Greenjets** in electric jet propulsion.

### Subsea Defense Investment: The Next Battlefield

Naval innovation's first wave played out on the surface — **Saronic**'s strikes during the Iran conflict, and **UFORCE**, whose Magura drones destroyed roughly a third of Russia's Black Sea Fleet, reaching unicorn status in March. The next front is underwater, and it's directly relevant to a Mediterranean and Adriatic-facing region: Russia is running a hybrid campaign against the cables and pipelines Europe depends on, and tracking just three of its submarines this spring cost Britain's Royal Navy **500 personnel, a frigate, and 450 flying hours**.

Governments are answering with autonomous platforms: Britain's **Atlantic Bastion** (**1.5 billion pounds** over four years) will scatter listening drones across the North Atlantic from 2027, and eighteen EU states have signed a joint seabed-defense project carrying an indicative **43 to 72 billion euros** by 2036\. M&A has followed — **Lockheed Martin** paid 3.45 billion dollars for sonar maker **Ultra Maritime**, and **Kraken Robotics** spent 615 million dollars on **Covelya**.

### Space Defense Investment: Orbit Becomes a Battlefield

Orbit underpins nearly every modern military function, and it's already being tested as a target. **Russia hacked Viasat** an hour before invading Ukraine in 2022; in May this year it parked five satellites within 500 meters of **ICEYE**'s Finnish radar spacecraft used by Ukraine.

**Golden Dome** is the clearest preview of a full space-warfare architecture: **185 billion dollars** for an initial capability by 2028, with **7,800 orbiting interceptors**, funding **True Anomaly**, **Anduril**, **Turion**, **Impulse**, and **Sierra Space**. Europe's largest commitment is German — **35 billion euros** for military space by 2030 — backing **Helsing** and the **ICEYE-Rheinmetall** joint venture, which secured a **1.7 billion euro** contract for roughly forty radar satellites.

### Nuclear, Cyber Offense, and Biodefense: Three Emerging Investment Categories

Three categories sit earlier on the curve. **Microreactors** solve a real base-power problem, and the US Army's **Janus Program** is mandated to run small reactors on military bases by September 2028, backing **Radiant**, **Antares Nuclear**, **Valar Atomics**, and **Oklo**.

**Cyber offense** has shifted from bespoke espionage to statecraft — France nearly tripled its military cyber budget since 2018, Germany just made cyber a fourth armed-forces branch — but the spending has bought headcount, not scale, a gap **Twenty**, **Method Security**, and **Open Minds** are starting to close.

**Biodefense** is the smallest category, but exposure is growing as AI lowers the barrier to engineering dangerous pathogens. The US spends roughly **27 billion dollars a year** here; Europe has the pharma and AI talent but no equivalent yet.

### What This Means for CEE and Western Balkans Defense Industry

CEE is already **the fastest-growing region for defense-tech deal activity in Europe**, per Dealroom's tracking, even where funding volume still lags the UK and Germany. Estonia's **Frankenburg Technologies** — interceptor missiles against drone saturation — signed a manufacturing deal with Poland's state-owned **PGZ** in March, exactly the kind of prime-startup pairing that gives smaller markets a route to production scale.

The Western Balkans has assets that map directly onto the categories above: former Yugoslav ammunition plants with spare industrial capacity, Croatian expertise in uncrewed ground vehicles \[previous AD coverage of Croatian UGV programs\], and Slovenian simulation-technology SMEs. Propulsion and munitions production — the bottleneck identified above — is the legacy capability the region can revive fastest. Subsea remains the least explored opening: the Adriatic carries the same undersea-infrastructure exposure as the North Atlantic, with no comparable regional investment signaled yet.

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## FAQ: Defense-Tech Investment in 2026

### What are the seven open categories in defense-tech investment for 2026?

The seven categories still open to new entrants are **missiles, propulsion, subsea systems, space, nuclear energy, cyber offense, and biodefense**. Drones and counter-drones are considered closed, with enough funded winners already in place to leave little room for newcomers.

#### What is the Family of Affordable Mass Missiles (FAMM)?

FAMM is a **12.6 billion dollar Pentagon program** to procure **28,000 low-cost cruise missiles**, built on a saturation doctrine: fire cheap weapons in volume to force adversaries to expend expensive interceptors. Production begins in autumn 2026.

#### Why has subsea warfare become a defense-tech investment priority?

Russia is running a hybrid campaign against undersea cables and pipelines in the North Atlantic, and tracking just three Russian submarines cost Britain's Royal Navy **500 personnel and a frigate** in one season. Autonomous underwater drones are replacing manned surveillance because no navy can monitor an ocean manually.

#### What is Golden Dome?

Golden Dome is the US space-defense architecture budgeted at **185 billion dollars** for an initial capability by 2028, including **7,800 orbiting interceptors** plus tracking, communications, and launch infrastructure layers.

#### What does the 2026 defense-tech shift mean for CEE and the Western Balkans?

CEE is the **fastest-growing region for defense-tech deal activity in Europe**. The Western Balkans specifically holds legacy ammunition-production capacity, Croatian UGV expertise, and Slovenian simulation know-how — capabilities that align with the propulsion and munitions gap identified as one of the seven open categories.