Defense Tech Startups

SK AeroSafety Group is a company serving the aviation industry with safety and maintenance services. The company focuses on aviation maintenance, repair, and operations (MRO) activities with strategic oversight on commercial and M&A initiatives.

1 investor

Skana Robotics engineers autonomous maritime vessels for defense and special operations applications. The company combines operational expertise from maritime special operations with advanced robotics and autonomous systems technology.

1 investor

Skyborne Tech develops smart aerial and ground robotic systems and software for defence and security customers. Its products are aimed at mission-critical battlefield use to protect service members and civilians.

1 investor

SkyGrid develops third-party services and infrastructure to enable safe integration of autonomous aircraft operations into global airspace. The company manages aeronautical and environmental data, monitors ground infrastructure, and provides surveillance capabilities for autonomous flight operations.

1 investor

Skypuzzler provides integrated Digital Air Traffic Control (iDATC), a tactical conflict resolution service that enables one operator to safely manage multiple drones simultaneously through real-time, predictive airspace deconfliction. The system is designed for drone operators, UTM providers, aviation authorities, and defense organizations operating in complex airspace environments.

1 investor

Leonid Capital Partners is a private investment firm offering term loans, revolving lines of credit, and acquisition financing to companies in the aerospace, defense, and government sectors, positioning itself as a capital provider for the U.S. Department of Defense.

1 investor

SlateSafety develops wearable technology and monitoring systems to identify and prevent heat stress and lone worker injuries for first responders, military personnel, and industrial workers. The company provides rugged, real-time data solutions designed for physically demanding work environments where safety decisions must be made quickly.

1 investor

A company that develops ballistic protection and advanced protective equipment for military, law enforcement, and specialized operational teams across various environments including aviation and maritime.

1 investor

Soaring Tech develops autonomous heavy-lift unmanned aircraft systems (UAS) for carrying payloads across military and civilian missions such as contested logistics and disaster response. Its drone platforms, including the commercial C25 and military M50, use a software-defined architecture and support universal payload types.

1 investor

SPA is a systems engineering and analytics firm that provides data-driven insights and defensible strategies for national security missions. The company serves government clients with technical expertise in critical national security domains.

1 investor

European Space Ventures AG is a space sector company based in Frankfurt. The page provides limited operational details, focusing instead on capital raising activities.

1 investor

Space Machines Company builds an AI-native space domain awareness and command-and-control platform (Solstice OS) alongside rapid-response orbital vehicles (Optimus Viper) for continuous monitoring, threat detection, and in-orbit defensive response. It serves commercial space operators, critical-infrastructure enterprises, and national security customers, with a team based across Australia, the US, UK, and India.

1 investor

SSCL provides independent third-party advisory and consulting services to defence and security stakeholders, focused on space operations for commercial, civil, and national security users. Its work covers operational research, capability-based planning, modeling and simulation, and concept development across the aerospace, near-space, and space domains.

1 investor

Space CoLAB develops diamond-based quantum transceivers that operate at room temperature without cryogenics, providing quantum-secure communications for mobile platforms, remote locations, and tactical environments. The company targets defence and critical infrastructure customers, manufacturing its hardware through Australia's national fabrication network.

1 investor

Space Protocol develops a decentralized operating system for space operations that provides real-time sensor calibration, satellite positioning, and orbital compliance monitoring. The platform enables autonomous satellites to sense, share, and react while delivering trustless data verification and risk quantification for space operators and defense agencies.

1 investor

Ambition Capital is a venture capital firm investing in early-stage critical technologies focused on national security, economic resilience, and global leadership. The firm partners with founders building next-generation systems across sectors including defense, advanced manufacturing, supply chain, and AI-integrated technologies.

1 investor

Spear.ai develops maritime defense technology combining hardware, AI-enabled tactical data software, and services for acoustic monitoring and situational awareness. Its offerings target maritime defense and military (warfighter) use cases, including persistent underwater surveillance and threat detection.

1 investor

Spherea provides test and simulation solutions to clients across multiple industries worldwide.

1 investor

Spleenlab develops AI-based perception and autonomy software for robotics, including drones, ground, and sea vehicles, covering functions such as precision landing, collision avoidance, sensor fusion, and SLAM. Its software is designed for autonomous systems used in mobility, defense, and industrial applications, and is hardware-agnostic across chips, sensors, and robotic platforms.

1 investor

Squadra is a seed-stage venture capital firm that provides hands-on operational support, network connections, and go-to-market help to early-stage startups. It has particular ties to the national security, defense, and cyber sectors.

1 investor

Squarehead Technology designs and manufactures electronically steerable microphone arrays that turn sound into actionable data for acoustic situational awareness. Its systems serve the industrial and security/defense sectors, with applications including passive sound-based drone detection and acoustic monitoring of machinery for early failure detection.

1 investor

SRC develops radar, sensing, and information technology for defense and national security applications, including border surveillance systems and airborne processing hardware. Its offerings serve military and government customers addressing threats across multiple domains.

1 investor

StandardAero provides mobile service team support for aircraft engine and auxiliary power unit maintenance, repair, and overhaul services across multiple locations globally. The company coordinates on-site repairs and maintenance for customers' turbine engines and APUs from various OEMs.

1 investor

Starburst is a global accelerator and strategic advisory firm focused on the aerospace and defense industry, offering startup acceleration programs, strategy consulting, and venture investments. The company connects early-stage innovators in aviation, space, defense, and enabling technologies with corporate partners, investors, and government stakeholders.

1 investor