Hitachi is a B2B infrastructure and IT company. It sells long-lived physical assets (transformers, HVDC converter stations, trains, signalling, elevators, semiconductor metrology tools) and then earns recurring service, maintenance, and software revenue on that installed base. Lumada is the umbrella for the data, AI, and digital services layered on top, and Hitachi reports Lumada as a growing share of total revenue. The four reporting sectors are Digital Systems & Services, Energy, Mobility, and Connective Industries. Customers are utilities, rail operators, governments, banks, and manufacturers, and many contracts run for years, which gives Hitachi a large order backlog and revenue visibility.