Defense Tech Startups

Reach Technologies develops data acquisition equipment, instrumentation recorders, and IoT monitoring solutions for industrial, aerospace, and transportation applications, enabling predictive maintenance and performance tracking across sectors including aviation, shipbuilding, and heavy equipment.

1 investor

RealmOne provides advanced analytics, cybersecurity, and data science solutions for national security and defense, serving U.S. government and defense institutions. The company specializes in data mining, predictive modeling, machine learning, and statistical analysis for mission-critical decision-making.

1 investor

An Australian cybersecurity firm providing security assessments, IRAP assessments, security documentation, training, and consulting for government, defence, and private sector organisations. It offers ASD-endorsed sovereign IRAP training and AI-powered tools for assessing systems against Australia's Information Security Manual (ISM).

1 investor

Redgrove develops infrared camera sensors using nanomaterials and advanced antenna designs for applications in defense, security, driver assistance, and emissions monitoring. The technology targets cost-effective, high-sensitivity thermal imaging solutions for industrial and commercial markets.

1 investor

Redhorse is a federal consulting firm delivering mission-ready technology solutions and services to the U.S. Department of Defense, Intelligence Community, and federal civilian agencies. The company provides consulting, cyber analytics, enterprise services, and national security-focused technology solutions for government customers.

1 investor

Reliance is an engineering company that researches, develops, and manufactures critical systems, components, and sub-assemblies for complex environments. It serves the defence, space, and life sciences sectors.

1 investor

Reloc develops jamming- and spoofing-resistant tactical navigation systems that fuse GNSS, IMU, and wheel odometry with manual heading corrections. Its hardware is built from European commercial off-the-shelf components for operational independence and designed to be repairable and recyclable.

1 investor

Repsense builds Havel, an AI-powered narrative intelligence platform that analyzes video and broadcast content to detect coordinated information operations and measure narrative impact. It serves defence and government institutions as well as commercial enterprises, and is based in Europe.

1 investor

Revision designs and manufactures advanced ballistic eyewear and protective equipment for military and tactical personnel worldwide. The company develops soldier-grade protective solutions through integrated teams spanning research, design, manufacturing, and testing.

1 investor

Revolve Robotics develops inspection, surveillance, and maintenance robots for hard-to-reach industrial environments, with applications in inspection, construction, security, public safety, and defense sectors. The company combines expertise in drone technology with robotics engineering to create mobile robots for previously inaccessible spaces.

1 investor

REVTECH develops and manufactures patented impact-protection materials that are customizable to a customer's design parameters, including color, weight, thickness, and flexibility. The company, which originated from research at Purdue University engineering laboratories, positions its materials as high-performance protective solutions validated by independent testing.

1 investor

RIFFAI develops satellite and artificial intelligence systems for Earth observation, working to connect space technology applications to real-world problems on a planetary scale. The company serves engineers, technologists, scientists, and research institutions working on aerospace and advanced technology challenges.

1 investor

Rift builds long-range electric VTOL drones with autonomous ground stations that launch, recover, and recharge aircraft for persistent aerial surveillance, delivering encrypted live EO/IR video to remote command centers. It sells aerial intelligence as a service to governments and industry for infrastructure monitoring, wildfire detection, and law enforcement.

1 investor

Rilian builds Caspian, an agentic security orchestration platform that unifies a fragmented security stack through a single interface and captures practitioner expertise, alongside DawnTreader, a deployment engine for air-gapped, sovereign, and compliance-restricted environments. It serves security operations teams, including those defending OT/ICS and critical infrastructure in mission-controlled and classified settings.

1 investor

Riphean Investments is a sector-focused private equity firm using a venture studio model to provide growth capital and shared services (financial, business administration, and go-to-market support) to companies serving national security. It invests in early and late-stage companies in cyber, defense, intelligence, security, and private sector IT.

1 investor

RoadSense collects data on public roads and streets — including people flow, pedestrian safety, bus stop occupancy, and tourist crowding — to help make cities smarter and safer without using personal data such as smartphone tracking or license plates. It targets urban traffic safety and smart city applications, including support for autonomous transportation.

1 investor

Robodub develops multirotor drones with customizable payloads for military and commercial logistics operations. The drones feature autonomous reconfigurable capabilities for enhanced safety and load adaptability across various delivery scenarios.

1 investor

Rocket Lab is an end-to-end space company providing launch services via the Electron and upcoming Neutron vehicles, along with spacecraft design, manufacture, and components for commercial, civil, and defense customers. The company serves satellite operators and mission planners globally with complete solutions from launch to on-orbit management.

1 investor

Collins Aerospace designs and delivers aerospace solutions and systems across commercial, regional, business, and military aviation markets.

1 investor

Real-time Robotics designs, engineers, and manufactures complete drone systems with emphasis on maximizing capability per mission, per dollar, and per operator through vertical integration. The company serves defense and commercial customers globally with NDAA-compliant systems.

1 investor

Rurex provides independent UN/STANAG testing, research, and disposal services for explosives, explosive ordnance, and dangerous goods, serving defense and industrial clients that need classification, authorisation, and transport compliance. It operates the SafeWork NSW and EPA-licensed Byrock Explosives Test & Evaluation Centre in Australia.

1 investor

S-Connect (Esconnec, KOSDAQ 096630) is a South Korean manufacturer operating in secondary (rechargeable) battery components and anti-drone system development, with additional environmental technology work. It runs domestic R&D facilities and production plants in Vietnam and Dongguan, China.

1 investor

S2 Corporation provides research and development services and has secured over $25 million in Small Business Innovation Research (SBIR) funding from the U.S. Small Business Administration since 2002.

1 investor

Sabena technics provides aircraft maintenance, repair, and overhaul (MRO) services across the aircraft lifecycle for civil and governmental customers, including airlines and government fleets. Operating in the aviation industry, it handles line and base maintenance for aircraft such as Airbus A350, Canadair CL-415, Falcon jets, and helicopters, with a notable presence in France and its overseas territories.

1 investor