ista is one of the world's leading energy service providers for greater energy efficiency in buildings, especially multi-family and commercial real estate. Around the globe ista has over 5,800 employees and is represented in 22 countries. Our solutions range from the supply and installation of meters to metering and consumption dependent billing, all helping our clients sustainably conserve energy, CO2 and costs. Our energy data management systems give property managers, home owners and tenants access to energy data, reporting and billing through easy to use web based portals. We are experts in the retrofit metering of existing heating systems, with over 60m devices installed and 13m homes under management. Contact us to find out more about how Heat Cost Allocation can benefit Residents and Operators - plus be compliant with the latest Heat Network (Metering and Billing) Regulations Find out more: info@ista-uk.com