Defense Tech Startups
1,120 companies tagged Defense Tech, with their investors and founders.
The NATO Innovation Fund is a standalone venture capital fund backed by 24 NATO allies, deploying over €1 billion into deep tech startups. It invests in founders working on defence, security, and resilience challenges, including infrastructure protection, the climate and energy transition, and resilient supply chains.
2 investors
Noble Gas Systems develops and manufactures conformable high-pressure gas storage vessels for transportation and stationary applications in commercial, aerospace, and defense markets.
2 investors
Nobles Worldwide designs and manufactures flexible ammunition chutes and ammunition handling systems, along with engineering services for custom feed system requirements across land, air, and sea military platforms. It serves defense and warfighter customers and is a member of the Ducommun group.
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
Oran Dev Co (ODC) builds the Odyssey Platform, a sovereign distributed compute grid that combines software-defined 5G/6G RAN, environmental sensing, and edge AI inference into a single open-architecture stack. It targets the US government, national security agencies, and allied telecom operators requiring supply-chain assurance and controllable infrastructure.
2 investors
Offline Protocol builds a mesh networking software and network layer that lets apps and devices communicate, authenticate, and coordinate when the internet is unavailable, using BLE and WiFi Direct with encrypted sessions. It serves teams operating at the disconnected edge and developers building offline-capable apps.
2 investors
Omelas builds Atreus, an agentic AI intelligence workbench that synthesizes multilingual, multidomain intelligence to uncover patterns across datasets and generate reports and presentations from prompts. The product is deployed with U.S. government agencies and geopolitical risk organizations.
2 investors
Ondas Inc. (Nasdaq: ONDS) provides autonomous systems, counter-drone solutions, private wireless networks, and AI capabilities through its Ondas Autonomous Systems and Ondas Networks business units. It serves customers in rail, energy, public safety, critical infrastructure, and government markets.
2 investors
Optera develops event-based neuromorphic sensors and on-orbit and ground systems for space domain awareness, aimed at satellite operators, defence contractors, and research partners. Its technology targets faster, lower-power sensing to make space operations more resilient in contested and degraded environments.
2 investors
Orbital Composites builds autonomous robotic systems that 3D print high-performance polymer, ceramic, and metal matrix composite parts at scale without tooling or manual layup. Its manufacturing platform serves the defense, aerospace, space, and energy sectors, producing components such as UAV airframes, marine hulls, thermal protection systems, and space-grade structures.
2 investors
Orbital Sidekick operates hyperspectral imaging satellites and provides data analysis for commercial operators in energy, mining, and agriculture, as well as environmental monitoring and national security applications. Its offerings help detect operational risks, support sustainability initiatives, and expand situational awareness through georectified hyperspectral intelligence.
2 investors
Oureon Technologies builds advanced sensing systems—including radar, acoustic sensors, passive RF, and airspace awareness software—for defense, public safety, and critical infrastructure applications. It serves the US military, American cities, and allied nations.
2 investors
Overwatch Imaging develops autonomous intelligence software and sensors for ISR (Intelligence, Surveillance, Reconnaissance) operations. The company delivers AI-enabled systems that detect targets and provide real-time situational awareness for military and defense operators across land, maritime, and littoral domains.
2 investors
Paratus builds AI software that automates administrative and busywork tasks for U.S. military operational teams. The product aims to reduce admin burden so mission-critical teams can maintain readiness.
2 investors
PerVista provides a full-stack event security service that combines licensed security personnel, on-premises edge AI weapon detection, FAA-certified drone surveillance, and autonomous robotic patrol dogs under a single operations center. It protects live events and venues ranging from concerts and professional sports to government special security events, corporate functions, and critical infrastructure.
2 investors
PiLogic builds domain-specific probabilistic AI models for critical dual-use aerospace and defense applications such as electrical diagnostics, radar analysis, and sensor fusion. Its inference engine aims to deliver precise, fast results on standard hardware without the compute demands of large language models.
2 investors
Planys Technologies develops marine robotics and remotely operated vehicles (ROVs) combined with non-destructive testing and data analytics for underwater inspection of submerged structures. It serves sectors such as maritime, infrastructure, energy, and process plants for asset integrity monitoring.
2 investors
Post-Quantum develops quantum-safe cryptographic solutions and standards for protecting sensitive communications and critical infrastructure against quantum computing threats. The company serves government, defense, and enterprise organizations worldwide with production-ready technologies used in NATO communications and critical infrastructure protection.
2 investors
Project Q builds Hydris, an Apache 2.0 open-core control plane that integrates heterogeneous sensors, systems, and effectors across air, land, sea, and space into a single taskable picture and exports to any battle management or C2 system. It also offers a UGS Mission Kit for early warning of RF-silent threats, serving defense and sovereign military operations.
2 investors
Pryzm is an AI-powered operating system designed for federal business development and government contracting. It provides federal contractors with real-time visibility into opportunities, decision-maker networks, and pipeline management through a specialized CRM and intelligence platform.
2 investors
QinetiQ is a global defence and security company that provides test and training facilities, mission support, research and development, and engineering services for defence systems and personnel across land, sea, air, space and cyber domains. It serves defence and security customers, operating across the UK, Europe, US and Australia.
2 investors
Quadsat develops modular radio-frequency sensing and electronic warfare payloads (such as SpectraLoc) that integrate into UAV platforms for RF signal detection and emitter geolocation, along with spectrum operations software. It serves defense forces and drone OEMs, drawing on a background in drone-based satellite antenna calibration; the company is based in Denmark.
2 investors









