4iG Plc.
4iG Nyrt.
Budapest, Hungary
About
4iG Plc. is a defense system integrator based in Budapest, Hungary working in space, unmanned systems, counter-uas & air defense +3 more.
4iG is a Budapest-headquartered, Hungarian-majority holding group. Its businesses cover telecommunications, IT system integration, and space and defence technology. The group runs telecom operations in Hungary and the Western Balkans, and is listed on the Budapest Stock Exchange premium category. Its Space and Defence division (4iG Űr- és Védelmi Zrt., 4iG S&D) covers satellite development and manufacturing, drone development and drone defence, and defence digitalisation. The division includes Hirtenberger Defence Systems, which develops and produces mortar systems and 60, 81 and 120 mm mortar ammunition; in 2025 Czech CSG agreed to acquire a 49% minority stake in it. Other defence activities include a partnership with Rheinmetall through Rheinmetall 4iG Digital Service Kft., a planned Hungarian communications satellite with Northrop Grumman, and strategic agreements with Northrop Grumman, L3Harris and Apex Technology. The group employs over 8,000 people across four countries through 28 subsidiaries.
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What they offer
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Products
Mortar systems and 60, 81 and 120 mm mortar ammunition
Mortar systems and ammunition
Mortar systems and mortar rounds developed and produced by Hirtenberger Defence Systems, a 4iG S&D subsidiary.
Drone development and drone defence
Unmanned systems and counter-drone
Drone manufacturing and development, plus drone defence capabilities, offered by the 4iG Space and Defence business.
REMTECH satellite manufacturing
Satellite
Space manufacturing centre for development, assembly, integration and testing of satellites up to 400 kg.
