4S

4iG Space and Defence Technologies

4iG Space and Defence Technologies Zrt.

Budapest, Hungary

SpaceUnmanned SystemsCounter-UAS & Air DefenseCommunications & SATCOMDual-use
System Integrator, MRO & Services
Profile last updated: September 21, 2026

About

4iG Space and Defence Technologies is a defense system integrator based in Budapest, Hungary working in space, unmanned systems, counter-uas & air defense +6 more.

4iG Space and Defence Technologies is the space and defence industry holding company of the 4iG Group in Hungary, providing integrated solutions to governmental and commercial partners. Its activities span five business lines: Space, Aero, Land Systems, Weapons & Ammunition, and Cyber & Defence Digitalisation. The company offers helicopter and aircraft maintenance, repair and overhaul services for military and civil operators, including specialised helicopter MRO for national defence forces. It develops UAV and counter-UAV technology, small satellite manufacturing, assembly, integration and testing (MAIT), ground segment and mission operations, satellite communication services, geospatial data and Earth observation services, and cybersecurity and ICT solutions for defence. It describes its technologies as NATO-compatible dual-use, and is expanding internationally through strategic partnerships and export-focused joint ventures.

Location

Budapest, Hungary

Company type

Private company

Legal name

4iG Space and Defence Technologies Zrt.

Focus areas

spacedefencesatelliteUAVcounter-UAVMROgeospatialEarth observationsatellite communicationcyberground segment

Languages

ENHU

Products & capabilities

Defense domains

SpaceUnmanned SystemsCounter-UAS & Air DefenseCommunications & SATCOMC4ISRDefense Software & AILand Systems & VehiclesWeaponsMRO & Logistics

Supply-chain role

System IntegratorMRO & Services

What they offer

HardwareSoftwareMaintenance & RepairTrainingEngineering Services

Markets

Also sells to civilian markets

Products

HUSAT programme

Satellite programme

Programme to deploy one GEO telecommunications satellite and eight LEO Earth observation satellites, managed through two fixed ground stations in Hungary.

UAV solutions

Unmanned aerial vehicle

Mission-driven drone solutions for defence, security and specialised industrial applications, from assessment to full-scale deployment.

C-UAV anti-drone solutions

Counter-UAV system

Coordinated subsystems and components for detecting, tracking and countering unmanned threats to protect strategically important facilities.

Other defense companies in Hungary

View all