The Defense Robots — Drones, Loitering Munitions & Defense AI
Ukraine proved $500 drones beat $10M tanks. The Pentagon is shifting from $50M platforms to $50K drones — and the supply chain to deliver tens of thousands of attritable robots per year doesn't yet exist.
Modern warfare has been turned upside down in 36 months. Cheap, expendable drones overwhelm air defenses. Loitering munitions (think: a flying grenade that orbits a target for hours before deciding when to dive) are now the dominant infantry weapon. The US Department of Defense launched the Replicator initiative to deliver thousands of "attritable autonomous systems" — robots cheap enough to lose, smart enough to win — and the manufacturing base to support that doesn't exist yet. The companies building it are mostly small, fast-growing, and trading like growth stocks rather than defense primes.
The DoD wants to move from a few hundred exquisite, expensive systems per year to tens of thousands of cheap autonomous ones. Only a handful of companies — AeroVironment, Anduril (private), Shield AI (private), Palantir, Kratos — are scaled enough to bid on these contracts today. Every Replicator dollar, every NATO reorder, and every counter-drone budget flows through this short list.
8 names on the watchlist
Maker of Switchblade — the de facto US loitering munition. Just merged with BlueHalo to add directed-energy and space.
The US specialist for small unmanned aircraft and loitering munitions . The Switchblade 300, 400, and 600 are small "kamikaze" drones a soldier can carry in a backpack, launch from a tube, and steer to a target dozens of miles away. They've been used extensively in Ukraine, are deployed across 100+ allied militaries, and have a 42,000+ installed base. In May 2025, AeroVironment closed a $4.1B all-stock merger with BlueHalo, adding directed-energy weapons, satellite operations, and space-domain awareness — making AVAV one of the few US defense names with a fully integrated drone-plus-counter-drone product line.
The defense-AI software chokepoint — Maven Smart System is the de facto DoD AI platform. Also fastest-growing commercial AI software company.
Palantir builds the software platform militaries and big companies use to turn messy real-world data into decisions. Gotham is the defense product (used by US Army, Navy, Space Force, Israel, Ukraine, UK MoD). Foundry is the commercial equivalent. AIP is the new AI agent layer that sits on top of both. The Maven Smart System — Palantir's contract from the DoD's Project Maven — has effectively become the operating system for joint-force AI: sensor fusion, target identification, command-and-control for the entire DoD. It is the rare US AI software product that is genuinely fielded at scale, not a pilot.
XQ-58 Valkyrie loyal-wingman drone + jet engines + hypersonics — the affordable autonomous-aircraft pioneer.
Kratos makes large autonomous combat aircraft, jet engines for tactical drones, and hypersonic targets . The flagship product is the XQ-58 Valkyrie — a runway-independent, low-cost (~$3M) unmanned fighter that flies alongside crewed aircraft as a "loyal wingman." Selected for the Air Force's Collaborative Combat Aircraft (CCA) program. Kratos also makes most of the hypersonic test targets the US uses to qualify missile defenses, and is the dominant US supplier of small turbojet engines for cruise missiles and target drones.
Drone-in-a-box autonomous inspection + counter-UAS systems — small-cap with explosive growth.
Two-business holding company: Ondas Autonomous Systems (Airobotics + American Robotics — automated drone-in-a-box for critical infrastructure and counter-drone) and Ondas Networks (private wireless for rail and energy). The hot business is counter-UAS and autonomous drone deployment — the same Replicator / counter-drone tailwind that lifts AeroVironment.
Defense electronics subsystems — RF, EW, processing modules inside missiles, radars, and drones.
Makes the rugged electronics modules that go inside missiles, radars, electronic-warfare pods, and high-end UAVs. Mercury sits one layer below the primes (Raytheon, Lockheed, L3Harris) but above the chip vendors. Q3 FY26 EPS $0.27 vs $0.07 estimate; record bookings. The turnaround thesis is intact. Smaller, less liquid than the primes but exposed to every modernization program — including the very loitering munitions and counter-UAS systems in this section.
Defense AI consulting + integration — the "AIP for the rest of DoD" partner.
The largest defense AI consulting and systems-integration firm . $38B backlog. Booz is the rare consulting firm that gets paid to deploy Palantir AIP, Anduril Lattice, and other defense-AI platforms into the field. Quietly positioned as the "neutral party" that connects all the new defense-AI vendors to DoD customers. Anduril partnership announced 2025 makes it a key integrator. Lower beta than the pure-play drone names.
Small-drone program of record — Army Short-Range Reconnaissance winner.
Very small cap. The thesis is binary: can Red Cat manufacture at the volumes the Army actually wants? Skydio (private) is the major competitor and arguably has better commercial drone tech. Watch SRR delivery rates and any follow-on international interest in the Teal 2 platform. Size very small.
US drone motors, parts, and FPV components — Berry-compliant supply chain for the Replicator era.
Q1 2026 revenue +296% YoY; raised drone-revenue guide to $10-14M. Needham PT $22. Sub-$200M market cap means single contracts move the stock 30%+. Pure microcap risk profile — but a unique exposure to the "no-Chinese-parts" Pentagon procurement mandate. Note: also covered as private/quasi-private peer to Anduril (private) and Shield AI (private) , which are not investable directly.