Amarisoft and Nexedi also launched a joint company called Rapid.Space last year. It combines cloud and 4G/5G infrastructure operation and is "HyperOpen" = using open-source software, open hardware and open service.
Press release: https://handbook.rapid.space/RS-Hyper.Open.Converged.Cloud.D...
More info on 5G technology: https://handbook.rapid.space/evangelist/RS-Presentation.For....
(disclaimer: I work for Nexedi and help out on Rapid.Space)