Cerillion Plc provides software for billing, charging, and customer relationship management to the telecommunications sector across the United Kingdom, Europe, the Middle East and Africa, the Americas, and the Asia Pacific. It operates through three segments: Services, Software, and Other. Its offerings include Cerillion Unify, a pre-packaged SaaS solution for quad-play CSPs; Cerillion Enterprise for B2B telecom operators; Cerillion Engage for digital-first customer experience; Cerillion Skyline, a SaaS solution for subscription businesses; and Cerillion Metro, a BSS/OSS solution for smart cities. The company also provides convergent charging systems, an Enterprise Product Catalogue, CRM Plus, Revenue Manager, Service Catalogue and Manager, Self Service, Output Streamer, Interconnect Manager, Mediator Plus, Mobile App, Business Insights, Dealer Portal, Network Inventory, and an Integration Layer. Cerillion Plc was founded in 1999 and is headquartered in London, the United Kingdom.