Expandium (a VIAVI Solutions company)

Expandium, a subsidiary of VIAVI Solutions since June 2020, is a France-based company that provides critical network monitoring and assurance solutions. Founded in 2005 and headquartered in Saint-Herblain, Expandium employs around 60 people and generates approximately $4 million in revenue. The company operates in the telecommunications industry, focusing on mission-critical networks, including railways and mobile operators transitioning to 5G.

Expandium offers vendor-independent platforms that connect to various data sources for network intelligence. Their solutions include troubleshooting, optimization, Customer Experience Management (CEM), Service Quality Management (SQM), fraud detection, and analytics. The company is recognized as a leading provider of railway telecommunication and signaling monitoring, with nearly 90% of European railway operators using its products. Expandium also supports mobile network operators, providing tools for monitoring and optimization across different network generations, including 2G, 3G, 4G, and 5G. Their services extend to mission-critical operators in over 30 countries across Europe, Africa, the Middle East, and Oceania.