Smart Building platforms integrate IoT sensors, building management systems (BMS), and automation to optimize the performance, efficiency, and occupant experience of commercial buildings. Core capabilities include HVAC optimization and automated climate control, intelligent lighting management, predictive maintenance and fault detection for building equipment, digital twin modeling, occupancy-driven automation (adjusting systems based on real-time presence), multi-system integration (mechanical, electrical, plumbing, fire, security), and portfolio-wide dashboards for building operators. The category represents the convergence of operational technology (OT) and IT in buildings — shifting from reactive maintenance and manual system tuning to data-driven, automated building operations. It spans enterprise BMS platforms (Honeywell Forge, Siemens Xcelerator, Schneider EcoStruxure, Johnson Controls OpenBlue) and cloud-native building analytics startups (Facilio, Willow, Switch Automation). Energy management is subsumed as one capability within the broader platform.