Onesait Customers, Minsait’s solution to manage every customer-related business process, from meter to cash. The key to covering utilities core needs in regulated and deregulated markets. Onesait Customers is a powerful CIS solution that supports customer engagement and the meter-to-cash business processes of electric, gas, and water utilities of all sizes. Is a world class solution, specially designed for utilities with a customer centric approach . The solution is used be more than 90 utilties around the world and more than 110 millons of bills are calculated every month by the system.