StormHarvester is a Belfast-based SaaS company applying machine learning and analytics to wastewater and stormwater networks. Its platform combines real-time sensor data with hyperlocal rainfall prediction to forecast sewer overflows, detect inflow and infiltration, identify blockages and pump-station faults, and trigger preventive network control before pollution events occur. Water utilities use StormHarvester to reduce sewage spills into rivers and seas, comply with tightening environmental regulation, and operate aging infrastructure more efficiently. Topping the Deloitte Fast 50, the company is expanding from the UK and Ireland into North America and Australasia to tackle wastewater pollution globally.