Three people wearing protective helmets and high-visibility vests are standing on a construction site in front of a multi-storey building surrounded by metal scaffolding. One person in a yellow vest raises their arm and points to an area of the façade or scaffolding, while the other two look intently in the same direction. In the background, a construction crane can be seen silhouetted against a bright sky. The image conveys a construction site inspection or on-site coordination meeting, where work progress, execution and safety aspects of the building envelope are being discussed.
Get easily started.

Better results, less hassle for contractors.

We cover full range of hardware starting from BTU meters, water meters (hot & cold), energy meters, M-Bus Masters and gateways along with software.

Services to secure the property.

With ista at your side, you benefit from a wide range of smart energy and building management services. Whether transparent consumption recording, automated billing, digital monitoring platforms or intelligent energy-​saving solutions.

A shot of a modern residential or office high-rise building from below. The light-coloured façade has a clear structure and is characterised by several staggered, widely projecting balconies. Glass railings and large window fronts reflect the daylight and provide insights into the interior. The balcony slabs form strong horizontal lines and create a dynamic, staggered silhouette. A bright sky can be seen in the background, making the contours of the building particularly clear. The image conveys contemporary architecture, urban living and high-quality building design.

Metering Technologies

Advanced technologies for reliable utility tracking and management.

A technician is working in a narrow technical room or basement corridor under a ceiling with several parallel metal pipes. He is wearing a blue safety helmet and a work jacket and is raising both arms to check or adjust a pipe or bracket above him. On the right, further installations such as ventilation ducts and cable ducts can be seen, while the walls are made of concrete or brickwork. The perspective looks along the pipes into the depths of the room and emphasises the technical infrastructure of the building.

Retrofit Solution

Transform your existing systems with our retrofit solutions, designed to improve efficiency, sustainability, and performance without the need for full system replacements.

Power Optimisation

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Latest technologies.

Optimise your property's energy management with our wired (M-Bus) and wireless (radio) systems, designed to deliver seamless communication and enhanced utility monitoring capability across your buildings.

Wired System - M-Bus

Reliable wired communication for utility meters.

Wireless System (LoRa & M-Bus)

Flexible, efficient wireless metering connectivity.

Water Meter

Track water consumption with high precision.

Cooling Meter

Our precise cooling meters, ensure accurate billing and efficient temperature control across buildings.

Contractors service source.

Energy savings of 25% achieved ahead.

The client was facing increasing energy costs and an aging infrastructure of air conditioning and lighting systems.

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150,000+ meters enabled real-​time data.

Seamless MDMS integration of meters enabled real-time data access, faster billing, and greater satisfaction.

Easy contact and 24/7 support.

We offer you a new and easy-to-use contact and support service.

From disconnected to centralised.

Remote connectivity to power smart metering.

Need help and like to get in touch with us.

Our strength lies in our personalised service, backed up by our market-​​​leading portals, giving our customers 24/7 access to their energy data, on one bespoke platform. 

Where innovation meets responsibility.

Facts & Figures

6,300 Employees

Icon: In einem Kreis in der Farbe lime Grün befindet sich eine abstrakte Darstellung der Erde.

20 Countries

3.7 Mio t CO₂ emissions avoided

14 Mio Utilisation units