15 Boulevard Marcel Paul – Building E
44800 Saint-Herblain

[email protected]

+33 (0)228019550


Since its establishment in 2005, our company has provided public and railway operators with the latest generation of tools to build network intelligence, ranging from troubleshooting to optimization through CEM and SQM. Our solutions monitor all interfaces currently in operations, including R4 architectures. These includes 2G, 3G, LTE, VoLTE and VoIP for MNOs as well as GSM-R, ETCS and FRMCS for Railway Operators.

We are a leading company in the European railway network and signalling monitoring community but not only. Our expertise also extends to public operators by providing complex solutions making use of Big Data technologies for tier-one mobile operators. We give public operators, railway operators and vendors the keys to efficiently monitor and optimize wireless networks, plan expansions and manage SLA services, either in their network deployment phase or during their day-to-day operation tasks. Expandium also offer a full-range of services including installation, training and expertise support.