Rheinmetall acquired a 25.1% stake in 4iG in March 2022, and the two companies have set up a joint venture, Rheinmetall-4iG Digital Services, to undertake internal and third-party IT shared services.

4iG aims to capture "up to 100%" of Rheinmetall's global civilian IT spending by 2028.

4iG's strategic partnership with Rheinmetall also extends to digitalization in manufacturing, battlefield Internet of Things, private 5G networks, and space and technology concerning drone business developments and satellite opportunities.