Defense Tech Startups

Lexset builds Sentinel, a sensor-agnostic computer vision and reasoning system that ingests video feeds, geolocates detections, and drafts decision-ready intelligence reports for defense ISR, infrastructure inspection, and industrial monitoring. It also offers Seahaven, a parametric 3D engine that generates photorealistic, fully annotated synthetic training data for enterprise CV and ML teams.

2 investors

Liquid Robotics builds the Wave Glider, an autonomous wave- and solar-powered uncrewed surface vehicle that collects and transmits real-time ocean data and maritime intelligence for missions lasting up to a year. It serves defense and security, offshore energy, and scientific and climate research customers with the vehicle, sensor payloads, and full-service mission support.

2 investors

Lockheed Martin is a global security and aerospace company that develops military aircraft, missile defense systems, helicopters, radar and sensor systems, spacecraft, and cybersecurity capabilities for the U.S. Department of Defense, federal government agencies, and international customers.

2 investors

Longeye builds an AI-powered investigative workspace that helps law enforcement agencies review large volumes of digital evidence such as video, audio, messages, and images. The product is designed for police and investigators, with case data kept isolated and not used to train large language models.

2 investors

Lore builds sovereign AI infrastructure and systems for governments and critical institutions operating AI across critical infrastructure, national defense, energy, and emergency response where reliability, authority, and accountability are mission-critical.

2 investors

Lumetec develops an AI-powered monitoring platform that combines real-time data sources to detect and prevent threats to subsea cables and critical infrastructure.

2 investors

Lumineye develops radar-based sensing technology that detects and distinguishes people through walls and other barriers, aimed at first responders, law enforcement, and defense users.

2 investors

Maquoketa develops drone systems and software for autonomous flight operations, including computer vision, ground control systems, and mechanical engineering. The company serves customers requiring aerial robotics and autonomous systems capabilities.

2 investors

Marlinspike is a firm whose team includes advisors with senior U.S. national security and intelligence backgrounds. The page profiles an advisor who served as the CIA's Chief Operating Officer, but provides no direct description of the company's own products or services.

2 investors

Mesa Quantum develops chip-scale quantum sensors — including atomic clocks, gyroscopes, magnetometers, and gravimeters — for industrial and defense applications, with a focus on Alternative Position, Navigation, and Timing (Alt-PNT) as a GPS backup. It serves product developers, industry partners, and defense customers needing low size, weight, and power measurement hardware.

2 investors

MICROOLED designs and manufactures high-resolution, low-power OLED microdisplays for near-eye applications including augmented reality glasses, night vision equipment, and medical devices. The company serves technology integrators, defense/security markets, and consumers through its ActiveLook sports augmented reality product line.

2 investors

Mithril develops electrostatically actuated, reconfigurable antennas for space-based radar that provide phased-array-style adaptability without motors, gimbals, or deployment mechanisms, at lower cost and mass than phased arrays or deployable reflectors. Its single reconfigurable aperture supports radar and communications across MEO, GEO, and cislunar orbits, targeting defense and commercial space sensing applications.

2 investors

Moeller Aerospace machines flight-critical turbine engine components and complex parts for major aerospace original equipment manufacturers and engine programs. The company specializes in precision machining of turbine airfoils and produces proprietary Click-Loc self-locking technology products.

2 investors

NATO (North Atlantic Treaty Organization) is an intergovernmental military alliance of North American and European member states that coordinates collective defense and security cooperation. The page describes NATO command activities, including training and military assistance to Ukraine.

2 investors

NIF is a venture capital fund focused on defence and innovation, working with government stakeholders, limited partners, and startups. It operates offices in Amsterdam and London.

2 investors

Navion manufactures proprietary sodium-ion batteries for industrial applications and defense, enabling TWh-scale energy storage using only U.S.-sourced materials without critical minerals. The company's products serve mission-critical applications requiring non-flammable, high-power energy solutions.

2 investors

Neolens builds technology tools to help mechanics maintain foreign-made military equipment, developed through customer discovery with defense stakeholders. The company was founded to serve defense and military maintenance needs, with early work focused on supporting Ukrainian mechanics.

2 investors

Neuraspace develops AI and machine learning models to predict satellite collisions and manage space debris for satellite operators and space agencies. The company aims to enable safe and automated space operations while maintaining a sustainable orbital environment.

2 investors

Nextech Solutions builds an edge activation platform for deploying and managing computing infrastructure in disconnected, degraded, intermittent, and limited-bandwidth (DDIL) environments, with a focus on defense and military use such as U.S. Air Force and U.S. Army deployments. The platform is designed to let operators without specialist IT backgrounds provision and restore configurations quickly.

2 investors

Nidus develops AI-powered manufacturing systems using foundational robotics models to enhance industrial production. The company serves manufacturers and defense-sector clients, focusing on boosting U.S. industrial capacity.

2 investors

Nobles designs and tests ammunition feed systems and hardware for military platforms including fighter jets, helicopters, and weapon stations. The company specializes in ammunition handling expertise for defense applications.

2 investors

Nooks provides industrial security services—including Facility Security Officer (FSO), Personnel Security (PERSEC), and Program Security support—to help companies obtain and maintain security clearances and access secure facilities. It serves the U.S. national security community, supporting technology adoption between government and private industry across multiple markets.

2 investors

Nordic Air Defence develops counter-unmanned aerial system (C-UAS) technology for air defence, building interceptor products aimed at addressing modern aerial threats. Its team includes engineers from defence technology companies, former founders, policymakers, and military personnel.

2 investors

NovaSpark manufactures mobile, atmospheric hydrogen generation systems that produce hydrogen, power, and water on-site in remote or critical environments. The company serves defense, disaster response, and critical infrastructure markets with technology designed for mission-critical operations.

2 investors