Which defense startup is growing the fastest?
In our defense tech market deck, you will find everything you need to understand the market
SUMMARY
Quantum Systems is currently the fastest-growing defense startup when recent revenue growth, profitability, battlefield use and visible production expansion are considered together.
Saronic probably recorded the largest percentage jump in 2025, with outside estimates pointing to roughly 1,500% growth. The figure comes from a very small base and remains less reliable than company-reported financial results.
Anduril wins the scale contest. Its revenue reportedly reached about $2.2 billion in 2025, and its 2026 target would add more annual revenue than the entire current business of any other startup in the comparison.
ICEYE has the healthiest financial profile. Revenue, EBITDA, operating cash flow and contracted backlog are all rising together, which is rare among private defense companies expanding this quickly.
The central measurement problem is that defense companies mix revenue, contract ceilings, funded orders, factory plans and delivery targets. Those figures describe different stages of growth and cannot be ranked as though they were equivalent.
Funded orders and delivered systems deserve more weight than maximum contract values. A ten-year purchasing framework may create a route to future business without guaranteeing anything close to its headline amount.
Production strategy also separates the contenders. Anduril is building the broadest industrial network, Quantum Systems is spreading manufacturing across allied countries, Saronic is making the largest long-term shipyard bet, and ICEYE has the most repeatable production rhythm.
Valuation is a weak shortcut for growth. Helsing and Shield AI have attracted large financing rounds, but their current valuations run ahead of the completed revenue evidence available publicly.
Demand is being pulled by several forces at once: Ukraine, European rearmament, competition with China, autonomous aircraft programs, uncrewed naval systems and a shift toward affordable mass. Startups still receive less than 1% of Pentagon contract spending, leaving a lot of room to expand without replacing the traditional primes.
Repeated doubling will become harder. Quantum Systems, Anduril and ICEYE have credible paths to further expansion, but procurement delays, factory ramp-ups, testing failures and budget timing will make annual results uneven.
The cleanest conclusion is that Quantum Systems leads on overall current growth, Saronic remains the percentage-growth wildcard, Anduril is creating the largest new defense business, and ICEYE offers the strongest combination of growth and financial quality.
This market map, featured in our defense tech market deck, highlights top companies and startups in the defense tech market
Which defense startup is growing the fastest?
Which defense startups are we actually comparing?
The defense startup growth race currently has six serious contenders: Anduril, Saronic, Quantum Systems, ICEYE, Shield AI and Helsing.
We focused on private companies that already generate substantial defense revenue or have entered large production programs. That removes dozens of promising early-stage companies whose growth may be spectacular but cannot yet be measured reliably.
We also excluded Palantir because it is publicly listed, SpaceX because defense remains only one part of a much larger space business, and cybersecurity companies whose economics are closer to ordinary enterprise software. Stark, Castelion, Firestorm, Epirus, Mach Industries and Hadrian are worth watching, but their recent revenue is either too small, too opaque or too dependent on future production plans for a fair comparison today.
Even within this narrower group, the figures are uneven. ICEYE publishes detailed financial results. Anduril has disclosed revenue during fundraising. Quantum Systems and Shield AI have shared current forecasts with major financial publications. Saronic’s revenue comes from an external estimate, while Helsing has disclosed funding and contracts more freely than completed revenue.
| Defense startup | What it mainly sells | Latest useful revenue figure | How confident are we? |
|---|---|---|---|
| Anduril | Autonomous aircraft, missiles, sensors and military software | $2.2B in 2025 | Relatively high |
| Saronic | Autonomous naval vessels | Estimated $200M in 2025 | Medium to low |
| Quantum Systems | Intelligence drones and autonomous systems | About €300M in 2025 | Medium to high |
| ICEYE | Radar satellites and sovereign intelligence systems | More than €250M in 2025 | High, but unaudited |
| Shield AI | AI pilots, autonomy software and military drones | About $300M in 2025 | Medium |
| Helsing | Defense AI, attack drones and autonomous platforms | €441M forecast for 2026 | Medium to low |
How should we measure the fastest-growing defense startup?
The fastest-growing defense startup should be judged mainly on recent revenue growth, then checked against funded orders, deliveries and production.
Percentage growth alone favors young companies. A startup moving from $10 million to $100 million grows by 900%, while a larger company moving from $1 billion to $2 billion grows by only 100%. The smaller company wins the percentage contest, although the larger one adds ten times more business.
Defense creates an unusual gap between announcements and revenue. A company can receive a contract with a multibillion-dollar ceiling, but the government may initially commit only a small fraction of that amount. A proposed factory can take several years to open. A successful test flight may lead to production, or it may remain a test.
We therefore use four separate tests. Saronic leads on the highest recent percentage estimate. Quantum Systems has the strongest current combination of rapid growth, profitability and visible operational expansion. Anduril is adding the most revenue in actual dollars. ICEYE shows the cleanest financial quality.
| Growth test | Current leader | Our reading |
|---|---|---|
| Highest latest percentage estimate | Saronic | Fastest jump from a very small base |
| Strongest current operating growth | Quantum Systems | Rapid revenue growth backed by deployments and production |
| Most revenue added in dollars | Anduril | Growth at a scale no other startup currently matches |
| Best profitable growth | ICEYE | Revenue, cash flow, profit and backlog are rising together |
If you want more recent data on this point, please see our latest defense tech market report.
As this chart shows, and as featured in our defense tech market deck, search interest in defense tech has risen sharply
Did Saronic really grow 1,500%?
Saronic probably delivered the fastest percentage jump in 2025, although the 1,500% number is still an outside estimate rather than a company-reported result.
Sacra estimates that Saronic’s revenue rose from roughly $12.5 million in 2024 to $200 million in 2025. Even if the estimate is off by tens of millions, Saronic would still have grown much faster proportionally than the other large defense startups.
There is real business behind the estimate. The US Navy awarded Saronic a $392 million production contract for Corsair autonomous vessels, with nearly $200 million reportedly placed on contract immediately. Saronic has said that it plans to increase production tenfold, while its Louisiana shipyard is being expanded with another $300 million of investment.
Still, the number deserves caution. Saronic had reportedly projected about $400 million of 2025 revenue, twice Sacra’s eventual estimate. The miss suggests that shipbuilding proved slower than the company first expected, which is hardly surprising for a startup moving from prototypes into serial production.
Its newest and largest project will also take time. Saronic plans to invest more than $3 billion in Port Alpha, an 835-acre shipyard in Texas, but operations are expected to begin in 2028. That project says a great deal about Saronic’s ambition. It says much less about revenue being earned today.
Our confidence is uneven. Saronic almost certainly grew extremely quickly, but we would not treat 1,500% as a precise or audited figure.
Is Quantum Systems growing the fastest right now?
Quantum Systems is currently the strongest answer when we require fresh revenue growth and visible operating scale.
The German drone company generated about €300 million in 2025 and now expects more than €700 million in 2026, according to financial information seen by the Financial Times. Reaching that target would mean growth of more than 130% in one year. Quantum Systems also expects roughly €200 million of EBITDA, so the expansion is not being produced through uncontrolled spending alone.
The longer trend is just as strong. Sacra estimates that revenue moved from roughly $20 million in 2022 to $39 million in 2023, $124 million in 2024 and $330 million in 2025. That is three consecutive years of very fast growth, rather than one sudden jump from an almost empty base.
The operating evidence is unusually concrete. Quantum Systems says its drones flew more than 19,000 missions in Ukraine during 2025. It now has production operations across Germany, Ukraine, the United States, Australia, Romania, the United Kingdom and the Baltics, with another facility ramping up in Alabama.
Quantum Systems has also widened the business through acquisitions. AirRobot added multicopter drones, Nordic Unmanned brought more aircraft and operational capabilities, and Spleenlab added edge AI and autonomous perception. The company is now trying to sell connected air, land and sea systems rather than relying on one reconnaissance drone.
Its recent $1.2 billion funding round at an $8 billion valuation gives Quantum Systems enough capital to keep expanding. The funding itself does not make the company the fastest-growing startup. The combination of current revenue, profitability, battlefield use and a broad production footprint does.
If you want more recent data on this point, please see our latest defense tech market report.
This chart, included in our defense tech market deck, shows annual VC investment in defense tech startups
Is Anduril growing the fastest in actual dollars?
Anduril is adding more defense revenue than any startup we can verify today.
Anduril generated approximately $2.2 billion in 2025, up about 110% from the previous year. The company is now targeting roughly $4.3 billion for 2026. Hitting that goal would add another $2.1 billion of annual revenue, more than the entire current business of any startup in this comparison.
The expansion is spread across several products and customers. Australia has turned the Ghost Shark autonomous submarine into a A$1.7 billion program of record, with production already underway. The US Air Force recently selected Anduril’s FQ-44 autonomous combat aircraft for the production phase of its Collaborative Combat Aircraft program.
Anduril has also reached a framework agreement intended to support the production of thousands of Barracuda-500 autonomous weapons each year. Initial deliveries are planned for 2027. At the same time, the company continues to sell counter-drone interceptors, electronic-warfare systems, surveillance towers, command software and rocket motors.
The risk comes from trying to scale all these businesses together. Anduril is reportedly preparing for an operating loss of about $1.2 billion in 2026 as it spends heavily on factories, engineering and product development. A recent investigation by Wired also described production delays, safety concerns and internal pressure at some facilities.
Those problems could slow Anduril, but they do not change the current ranking. No other private defense company is adding billions of dollars of annual business while entering production across so many categories.
Which defense startup has the healthiest growth?
ICEYE currently has the healthiest defense startup growth, with revenue, profit, cash and backlog all moving up together.
ICEYE reported more than €250 million in 2025 revenue, roughly twice the previous year’s level. It also produced more than €100 million of EBITDA and over €130 million of operating cash flow. The figures are unaudited, but few private defense companies disclose anything this detailed.
The €1.5 billion contracted backlog is even more useful. It equals roughly six times ICEYE’s 2025 revenue and represents signed business that has not yet been recognized. ICEYE says it expects to grow at a similar rate again in 2026.
The company has been turning that backlog into hardware. ICEYE has launched more than 70 radar satellites since 2018, including ten during the first part of 2026. Its customers now include the defense forces or governments of Finland, Poland, Portugal, Sweden, the Netherlands and other allied countries.
ICEYE also raised €1 billion recently at a valuation of about €10 billion. Part of that capital will help it increase annual satellite production toward 100 units by 2028.
ICEYE is smaller than Anduril and growing more slowly than Quantum Systems’ current forecast. Yet its growth depends less on optimistic future factories or uncommitted contract ceilings. Governments are ordering satellites, ICEYE is manufacturing and launching them, and the company is already producing substantial cash.
If you want more recent data on this point, please see our latest defense tech market report.
This chart, included in our defense tech market deck, shows why Anduril is winning in defense tech
Is Shield AI accelerating fast enough to lead?
Shield AI is accelerating, but its expected growth still trails the leading defense startups.
Shield AI expects more than $540 million of revenue in 2026, according to figures its executives gave Fortune. That would represent growth of more than 80% from an estimated 2025 base of roughly $300 million.
The newest contracts make that forecast more credible. The US Air Force has awarded Shield AI a production contract for Hivemind, its autonomous flight software, under the Collaborative Combat Aircraft program. Hivemind has already flown aboard Anduril’s FQ-44 aircraft, giving Shield AI access to an important military aircraft program without having to manufacture the airframe itself.
Shield AI has also completed its acquisition of Aechelon, a specialist in high-fidelity simulation and synthetic environments. That technology can help Hivemind train, test and prove autonomous behavior before aircraft enter dangerous real-world trials.
Investors have priced in a much larger future. Shield AI raised $2 billion in financing at a $12.7 billion valuation, up from $5.3 billion about a year earlier.
The business is clearly moving faster lately, and the Air Force production decision is more important than the valuation jump. Even so, an 80% growth forecast leaves Shield AI behind Quantum Systems’ projected pace and below the latest growth reported by Anduril and ICEYE.
Is Helsing growing as fast as its valuation suggests?
Helsing is growing quickly, but its $18 billion valuation is still running well ahead of the revenue evidence.
Roadshow documents reviewed by the Financial Times put Helsing’s expected 2026 revenue at €441 million, followed by €753 million in 2027. Those are serious numbers for a company founded in 2021, but the new valuation equals roughly 32 times the current revenue forecast.
Helsing has begun winning the contracts needed to narrow that gap. Germany placed an initial €268 million order for its HX-2 attack drones, within a framework that could eventually reach €1.46 billion. German lawmakers have also approved a €223 million combat-cloud contract for the country’s air force.
The company is moving beyond its original battlefield software. Helsing now develops attack drones, autonomous underwater vehicles, robotics, satellite intelligence and the CA-1 autonomous combat aircraft. Its acquisition of aircraft manufacturer Grob gave it capabilities that would take years to build internally.
Revenue could rise very quickly from here. Much of the 2027 forecast is already covered by orders or expected follow-on work, according to Helsing’s finance chief.
However, we still lack a clean, independently verified revenue history. Helsing’s valuation, funding and product announcements are highly visible, while its completed financial performance remains harder to inspect. It belongs among the fastest-growing defense startups, but naming it the leader today would require more evidence than investors have publicly shown.
If you want more recent data on this point, please see our latest defense tech market report.
This chart, included in our defense tech market deck, shows annual funding in defense tech startups
Do huge defense contracts prove that a startup is growing?
Large defense contracts help us confirm demand, but only funded orders and delivered systems turn into near-term growth.
The distinction is easy to miss. The US Army’s agreement with Anduril has a ceiling of up to $20 billion over ten years, but that figure is the maximum amount the Army could order. It is not $20 billion of guaranteed revenue.
Saronic’s Navy contract gives us firmer near-term evidence. The total value is $392 million, with nearly $200 million reportedly committed from the beginning. Helsing’s HX-2 agreement follows a similar pattern: an initial €268 million order sits inside a much larger possible framework.
Programs of record are generally stronger than broad purchasing frameworks because they place a product inside a government’s planned force structure and budget process. Anduril’s Ghost Shark program in Australia is valuable for this reason. Production is underway, and the customer has committed to building a fleet.
We count contract ceilings as evidence of opportunity, funded orders as evidence of demand, and delivered products as evidence of revenue. Mixing the three can make a young defense company appear several times larger than it really is.
| Defense startup | Announced contract or framework | What appears firm today | What remains uncertain |
|---|---|---|---|
| Anduril | US Army agreement up to $20B | Easier route for future Army orders | How much the Army will actually purchase |
| Saronic | $392M Navy production contract | Nearly $200M reportedly committed initially | Timing of later vessel orders |
| Helsing | €268M initial HX-2 order, framework up to €1.46B | The initial German order | Whether all framework options are used |
| Anduril | A$1.7B Ghost Shark program | Production program with work underway | Exact delivery pace and revenue recognition |
Which defense startup is scaling production the fastest?
Anduril is scaling the broadest production network today, while Saronic is making the boldest long-term factory bet.
Anduril already produces products ranging from small interceptors to autonomous submarines and combat aircraft. Its five-million-square-foot Arsenal-1 facility in Ohio is being prepared for large-scale manufacturing, with the FQ-44 expected to become one of its first major programs.
Quantum Systems has taken a different route. Instead of relying on one giant factory, it has built and acquired production operations across allied countries. That lets it manufacture closer to government customers and respond quickly when local-content rules or security concerns make imports difficult.
Saronic’s industrial plan is more concentrated. It is expanding an existing Louisiana shipyard now, while Port Alpha in Texas could eventually become one of the largest new shipbuilding sites in the United States. Most of that capacity will arrive later, so the current business should not receive credit for production lines that have not opened.
ICEYE has the clearest rhythm of repeated manufacturing. It builds small radar satellites, launches them regularly and can replace failed units without losing the entire service. Moving toward 100 satellites a year would make ICEYE one of Europe’s largest producers of defense-related spacecraft.
| Defense startup | Production evidence today | Main expansion | Our verdict |
|---|---|---|---|
| Anduril | Multiple systems already in production | Arsenal-1 and thousands of autonomous weapons | Broadest industrial expansion |
| Quantum Systems | Manufacturing across several allied countries | More local factories and acquired product lines | Fastest distributed expansion |
| Saronic | Existing Texas and Louisiana operations | Port Alpha and larger autonomous ships | Biggest future factory bet |
| ICEYE | More than 70 satellites launched | Targeting 100 satellites annually | Most repeatable production model |
This chart, included in our defense tech market deck, compares the main business model options for defense AI contractors
Why are defense startups growing so quickly now?
Defense startups are growing quickly because governments have finally begun buying more drones, autonomy and space intelligence, although the old contractors still take almost all the money.
According to the Wall Street Journal, Pentagon spending with the 15 largest defense technology startups has roughly tripled since 2022. Those companies still receive less than 1% of total Pentagon contract spending.
That tiny share explains why growth rates can remain high. Anduril, Saronic and Shield AI do not need to replace Lockheed Martin or Northrop Grumman to double. Capturing even a few additional percentage points of procurement would create tens of billions of dollars in business for the startup group.
Ukraine has sped up demand for reconnaissance drones, attack drones, electronic warfare and satellite imagery. Competition with China is pushing the United States toward autonomous ships, collaborative combat aircraft and larger stocks of affordable weapons. European rearmament is giving Quantum Systems, ICEYE and Helsing access to national budgets that were much harder for startups to enter a few years ago.
Still, the market is not flipping overnight. Research from BCG and Vertical Research Partners estimated that the United States, Europe and the United Kingdom spent about $65 billion on traditional complex weapon systems in 2025, compared with roughly $5 billion on affordable mass systems.
Startups are growing from the smaller and faster-moving part of defense spending. That is enough to create several billion-dollar companies, but the large incumbents will continue controlling most military revenue for years.
Can the fastest-growing defense startups keep doubling?
Quantum Systems, Anduril and ICEYE can keep growing very fast, but repeated doubling will become harder as each company gets larger.
Quantum Systems expects more than €700 million of revenue now and has spoken about reaching €1 billion in 2027. That would still be excellent growth, although it would already represent a slowdown from its current pace.
Anduril’s $4.3 billion target requires another huge increase in deliveries. The FQ-44 production award, Ghost Shark and Barracuda agreements give it a path, but the company must open factories, qualify suppliers and deliver several complex products at once.
ICEYE has enough backlog to support further expansion, and its satellite production process is easier to repeat than building large ships or combat aircraft. Its challenge will be hiring and manufacturing quickly enough without damaging the margins that currently make its growth stand out.
Saronic faces the biggest mathematical slowdown. Its extraordinary percentage came from a very small starting point. The company can increase revenue several times over as Navy production grows, but repeating anything close to the previous jump would require it to become a multibillion-dollar shipbuilder almost immediately.
The broader risk is procurement timing. Government orders can move forward for years and then pause because of testing failures, budget negotiations or political changes. The strongest companies will keep growing, although their results will probably become less smooth from one year to the next.
This chart, featured in our defense tech market deck, shows the share of revenue generated by each customer segment in the defense tech market
Which defense startup is growing the fastest today?
Quantum Systems is the best current answer, while Saronic has the highest latest percentage estimate and Anduril is adding the most revenue.
Saronic’s estimated 2025 jump is too large to ignore. However, it relies on an external revenue model, comes from a tiny base and has not yet been followed by a clear 2026 revenue forecast. Much of the company’s biggest production capacity also remains under construction.
Quantum Systems gives us fresher and more complete evidence. Revenue is expected to rise from about €300 million to more than €700 million, the company is profitable, its systems are being used heavily in Ukraine, and production is expanding across several allied countries. No other major defense startup currently combines a comparable growth rate with this much operational proof.
Anduril wins a different contest. It is already several times larger than Quantum Systems and could add more than $2 billion of revenue in one year. That makes Anduril the fastest-growing defense startup at industrial scale, even though its percentage growth is slightly lower.
ICEYE comes next because its growth is profitable and protected by a large contracted backlog. Shield AI is accelerating but remains behind the leaders. Helsing could move up quickly once more completed financial data becomes available.
Our final judgment is clear: Quantum Systems is currently growing the fastest among defense startups whose numbers we can compare with reasonable confidence. Saronic remains the percentage-growth wildcard, while Anduril is building the largest new defense business.
If you want more recent data on this point, please see our latest defense tech market report.
OUR METHODOLOGY
This analysis asks which private defense startup is growing the fastest based on the freshest available financial and operational evidence. We compare Anduril, Saronic, Quantum Systems, ICEYE, Shield AI and Helsing across percentage revenue growth, revenue added in dollars, operating expansion and the quality of growth.
Reported results carry more weight than management targets, funded orders more than contract ceilings, and systems already being produced or delivered more than factories and programs still under development. Where private-company disclosure is incomplete, we cross-check company statements against government records and reporting from established financial publications.
We separate four different versions of “fastest-growing”: the highest recent percentage increase, the strongest current operating growth, the most revenue added in absolute dollars and the best profitable growth. This prevents a one-year jump from a small base from automatically outranking sustained expansion at a much larger scale.
Revenue remains the main measure, but we use funded demand, deliveries, active production, profitability, operating cash flow and contracted backlog to test whether the growth is real and repeatable. Contract ceilings are treated as opportunity, not guaranteed revenue.
Key sources include the Financial Times on Anduril’s 2025 revenue growth, fundraising and valuation, Reuters on Anduril’s $5 billion funding round and reported $2.2 billion revenue, Anduril on the Barracuda-500 production agreement, Quantum Systems on its $1.2 billion funding round, the Financial Times on Quantum Systems’ revenue and EBITDA forecasts, ICEYE’s 2025 financial disclosure, ICEYE on its €1 billion round and production target, Saronic on its vessel portfolio and Port Alpha project, Fortune on Shield AI’s revenue forecast and financing, Shield AI on its financing and Aechelon transaction, Helsing on its Series E, the Financial Times on Helsing’s forecasts and German contracts, The Wall Street Journal on Pentagon spending with defense-technology startups, and BCG on spending for traditional and affordable mass systems.
This chart, included in our defense tech market deck, shows how tactical networking platform technology has evolved over time
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