These seven stocks offer different ways to invest in the structural rise of counter-drone defense spending, from pure-play C-UAS systems to large-scale defense integrators.
Counter-drone has become a serious defense spending theme because low-cost unmanned aerial vehicles are now a persistent threat to military bases, borders, critical infrastructure, and public events. What used to be a niche force-protection problem is increasingly a mainstream procurement priority. That shift matters for investors because the opportunity is no longer limited to one hardware category; it now spans sensors, software, electronic warfare, cyber takeover, and kinetic intercept systems.
The most attractive part of the market is the layered architecture behind modern C-UAS systems. Detection and tracking are only the first step. Operators also need command-and-control software, RF and cyber mitigation, and in many cases a hard-kill or directed-energy option. Recent developments highlight how urgent the market has become: Parsons said its DroneArmor C-UAS was deployed by a federal national security customer along the southern border in February 2026, AeroVironment announced Halo_Shield after acquiring BlueHalo, and Ondas continued to win orders for Iron Drone Raider and Sentrycs systems.
For this list, the key distinction is between companies with fielded, named counter-drone offerings and larger defense primes whose exposure is more adjacent through missile defense, radar, electronic warfare, or systems integration. The seven stocks below are ranked in countdown order from No. 7 to No. 1 based on overall investment quality, balancing business relevance to the theme with profitability, growth, valuation, and execution.
We screened for U.S.-listed companies with market capitalizations above $500 million and meaningful exposure to counter-drone, adjacent air-and-missile defense, electronic warfare, or unmanned systems. We then ranked the group by investment quality, using our composite quality grades alongside profitability, growth, valuation, analyst sentiment, and earnings execution. This is a countdown, so the list starts with the weakest fit on quality among the finalists and ends with the strongest overall pick at No. 1.
What they do. Parsons is a government technology and engineering contractor serving U.S. federal and critical infrastructure customers through its Federal Solutions and Critical Infrastructure segments. Its federal portfolio includes cyber, air and missile defense, electronic warfare, border security, command and control, directed energy, and counter unmanned air systems, giving it a broad systems-integration role rather than a pure-play hardware profile.
Why it fits. Parsons belongs on a counter-drone list because C-UAS is explicitly part of its Federal Solutions offering, and the company recently underscored that relevance by saying DroneArmor C-UAS was deployed by a federal national security customer along the southern border in February 2026. That matters because the theme increasingly favors vendors with fielded systems and real-world deployments, not just conceptual exposure to autonomy or defense software.
Numbers that matter. Parsons generated $6.30 billion in revenue and $523.8 million in EBITDA, with a 22.8% gross margin, 6.34% operating margin, and 3.62% net margin. Profitability is respectable but not standout, with ROE of 11.03% and ROA of 4.40%. Growth has also softened recently: revenue declined 4.1% year over year and earnings declined 17.9%, even though the forward P/E of 14.68 is much lower than the trailing P/E of 29.11. That combination suggests investors are paying for an expected earnings rebound rather than current momentum.
Recent momentum. Parsons has beaten earnings estimates in five of the last seven reported quarters, including a 16.2% beat in April 2026 when it delivered EPS of $0.79 versus a $0.68 estimate. Still, analyst sentiment remains cautious, with one Buy and six Holds, matching the Neutral consensus. The setup is credible because of the named C-UAS deployment, but compared with higher-ranked names, the financial profile is less compelling.
What they do. L3Harris is a large aerospace and defense contractor focused on mission-critical systems through Space & Mission Systems, Communications & Spectrum Dominance, and Missile Solutions. Its portfolio spans tactical radios, software, waveforms, satellite terminals, integrated vision systems, missile warning and defense, and advanced missile technologies, making it a broad defense electronics and systems house.
Why it fits. L3Harris is not the most direct counter-drone name on this list, but it has clear adjacency through spectrum dominance, tactical communications, battlefield software, integrated vision, and missile-defense capabilities. In a layered C-UAS architecture, those capabilities matter because drone defense depends on sensing, command links, electronic warfare, and integration across the battlespace. That makes L3Harris more of an enabling platform provider than a pure counter-drone specialist.
Numbers that matter. The company produced $12.86 billion in revenue and $2.15 billion in EBITDA, with a 30.4% gross margin, 9.73% operating margin, and 10.37% net margin. Revenue growth was modest at 1.9% year over year, while earnings growth declined 6.1%. Valuation is not cheap, with a trailing P/E of 33.45 and forward P/E of 26.95, but the business remains solidly profitable, with ROE of 8.19% and ROA of 4.24%. For investors, that means quality and scale are present, but the counter-drone angle is less explicit than with the top-ranked names.
Recent momentum. L3Harris has beaten earnings estimates in six of the last seven quarters, including a 13.2% beat in April 2026 with EPS of $2.91 versus a $2.57 estimate. Analyst sentiment is constructive, with five Buys and six Holds and an overall Buy consensus. The execution record is strong, but because the company is more adjacent than direct in counter-drone, it ranks below more theme-specific picks.
What they do.RTX is one of the largest aerospace and defense companies in the market, operating through Collins Aerospace, Pratt & Whitney, and Raytheon. The Raytheon segment is the key piece for this theme because it provides defensive and offensive threat detection, tracking, and mitigation capabilities, along with sensors, mission orchestration, satellite control products, and software.
Why it fits.RTX fits the counter-drone theme through the broader air-defense and sensing stack rather than through a specifically named C-UAS product in the data provided. That still matters because layered drone defense relies on detection, tracking, command software, and mitigation, all of which align with the Raytheon segment’s capabilities. Investors looking for scale and diversified defense exposure may find that attractive, even if the company is less pure-play than AeroVironment, Ondas, or Parsons.
Numbers that matter.RTX generated $90.37 billion in revenue and $15.26 billion in EBITDA, with a 20.2% gross margin, 13.18% operating margin, and 8.03% net margin. Growth is healthy for a defense giant: revenue rose 8.7% year over year and earnings grew 32.5%. ROE of 11.57% and ROA of 4.05% point to solid capital efficiency, although valuation remains elevated at 32.69 times trailing earnings and 25.19 times forward earnings. In other words, this is a high-quality prime, but not an obvious bargain.
Recent momentum.RTX has a perfect 7-for-7 earnings beat record in the reported period, including a 17.1% beat in April 2026 when EPS came in at $1.78 versus a $1.52 estimate. Analysts are constructive, with four Buys and eight Holds for an overall Buy consensus. That consistency supports the investment case, but the company’s counter-drone exposure is still more indirect than the names ranked above it.
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What they do. Leidos is a government services and technology company with operations spanning national security software, AI and machine learning, cyber operations, biometrics, air and missile defense, ISR missions, electronic warfare, and communications payloads. It also has meaningful exposure to border and airport security systems, including mobile non-intrusive ports and borders inspection systems and an open-architecture platform that integrates disparate security devices.
Why it fits. Leidos makes this list because counter-drone increasingly depends on software integration, AI-enabled coordination, cyber capability, and defense systems that connect sensors with operators. Its mix of national security software, air and missile defense, electronic warfare, and border-security infrastructure gives it credible exposure to the command, sensing, and integration layers of the C-UAS stack. It is not a pure-play interceptor story, but it is well positioned where procurement is shifting toward modular, software-defined architectures.
Numbers that matter. Leidos stands out on financial quality. It generated $17.33 billion in revenue and $2.40 billion in EBITDA, with a 17.9% gross margin, 12.23% operating margin, and 8.15% net margin. ROE is a strong 30.58% and ROA is 9.23%, while valuation is relatively modest at 11.60 times trailing earnings and 10.46 times forward earnings. Revenue grew 3.7% year over year, though earnings growth declined 7.6%, so this is more of a quality-and-valuation story than a high-growth one.
Recent momentum. Leidos has beaten earnings estimates in seven straight reported quarters, including a 7.6% beat in May 2026 with EPS of $3.13 versus a $2.91 estimate. Analyst sentiment is favorable but measured, with two Buys and seven Holds. The combination of an A- quality grade, strong profitability, and consistent execution pushes Leidos into the upper half of this ranking.
What they do. Ondas is one of the most direct counter-drone companies in this group. Through Ondas Autonomous Systems, it offers Iron Drone Raider, a fully autonomous interceptor drone system for neutralizing small hostile drones, and Sentrycs CoRF, a cyber/RF-based C-UAS platform for detection, identification, tracking, and mitigation of unauthorized drones. It also sells autonomous drone platforms, tactical ground robotics, loitering munitions, and private wireless solutions.
Why it fits. This is one of the clearest pure-play counter-drone stories on the list because the company has named C-UAS products covering both detection/mitigation and kinetic interception. The theme context also points to continued order activity for Iron Drone Raider and Sentrycs systems, which strengthens the case that Ondas is participating directly in current procurement demand. If investors want focused exposure to the C-UAS stack rather than broad defense adjacency, Ondas is hard to ignore.
Numbers that matter. The trade-off is financial risk. Ondas generated just $96.6 million in revenue and posted EBITDA of negative $74.6 million. Gross margin is a healthy 44.8%, but operating margin is deeply negative at -85.13%, and ROA is -4.25%. Revenue growth is explosive at 1,079.9% year over year, yet the trailing P/E is 129 and the forward P/E is 76.92, while EPS is expected to remain negative next year at -$0.05. This is a much more speculative setup than the larger primes above it.
Recent momentum. Earnings execution has been uneven, with beats in only three of the last eight reported quarters and a sharp miss on March 31, 2026, when EPS of -$0.0671 came in below the -$0.03 estimate. Even so, analysts remain positive, with one Buy and one Hold and an overall Buy consensus. Ondas ranks this high because its thematic fit is excellent, but investors have to accept much higher volatility and operating risk.
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This monthly screen focused on U.S.-listed stocks with market capitalizations above $500 million and material exposure to counter-drone systems, adjacent air-defense technologies, electronic warfare, autonomous systems, or defense software integration. We ranked the finalists by investment quality using our composite quality grades, primary-source financial data, earnings consistency, analyst sentiment, profitability, growth, and valuation. Because this is a countdown format, the list begins with No. 7 and ends with the strongest overall pick at No. 1. The rankings are refreshed monthly as company fundamentals, earnings results, and theme relevance evolve.
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