ista is the global market leader in the consumption-dependent billing of energy, water and ancillary costs. The services offered to property managers, house owners and energy utilities range from the supply and installation of meters to metering and consumption-dependent billing. With its products and services, ista makes an important contribution to the responsible use of water, heat and energy. ista is represented in 25 countries ista NV Anderlecht Square Marie Curie, 50 B-1070 Bruxelles TVA / BTW BE 0417.918.263