The picture shows a man sitting on a balcony in an urban environment. He is wearing a dark blue suit and a white shirt and is sitting relaxed at a small black table on the lower half in the centre of the picture. On the table in front of him are a laptop, a notepad with a pen and a coffee mug. The man has rested his legs on the balcony railing and is holding a telephone in his left hand while talking on the phone. The balcony is richly decorated with plants. On the left of the picture, climbing plants stretch up the wall, taking up almost the entire left side of the picture. Below the climbing plants are several pots of flowering plants and greenery arranged along the floor of the balcony. Above the man, stretched across the balcony, is a string of lights with several light bulbs that extends from the top left-hand corner to the right-hand side of the picture. In the background you can see a row of multi-storey buildings in various shades of yellow stretching across the top and centre of the picture. Behind the buildings is a park-like landscape with many trees that further break up the background. The sun seems to be either rising or setting, giving the picture a warm, golden glow. The view from the balcony extends over the roofs of the city.

Legal compliance: The key to stress-free property management

Ensure compliance with energy regulations, reduce risks, and unlock funding opportunities with our expert team. Rest easy, knowing your property is not only compliant but also driving a greener future.

Your benefits at a glance:

Minimize legal risks

Avoid penalties and fines

Future-proof your property

Contribute to a sustainable future

Nationwide service wherever you are

ista – Your trusted partner for your property compliance.

We understand navigating complex and ever-changing regulations can be a daunting task. Furthermore, failure to comply with energy efficiency standards can lead to costly penalties and legal action, not to mention reputational damage.

That's where we come in - our team of experts can navigate the regulatory landscape with ease, providing peace of mind and protecting your property. Trust ista to be your compliance partner and streamline your property management needs today.

Essential services your property needs right now.

With our comprehensive services, you can rest easy knowing that your billing and utility expenses are taken care of, leaving you free to focus on other important aspects of property management.

The picture shows a woman sitting on a couch and reading the ista heating bill. She has long blonde hair and is wearing black glasses. Her top is a blue shirt and she is wearing brown trousers. While she holds the heating bill in her left hand, her right hand rests on her chin. She looks directly into the camera. The beige couch on which she is sitting stretches across the entire lower third of the picture and has a white blanket draped over the back on the left with a yellow cushion leaning against it. In the background are various pieces of furniture that suggest a living room: A floor lamp and a shelf can be seen on the right, and in the centre an open two-part door leading into another room with bookshelves. The entire background is blurred.

Heat cost allocation

Allocate heating costs fairly among residents.

The picture shows a row of narrow but tall terraced houses. The terraced houses have alternating grey and white façades. On the left you can see a house with a white façade and on the far right a house with a grey façade. They are also always built at different heights, so that there are never two houses of the same height next to each other. All the houses have a large square window front in the upper half, consisting of 30 small square windows. The window front of the fourth house from the right is the only one covered by a blind. All of the houses have four individual windows under the fronts, with two on the left and two on the right below each other. Above the houses you can see the almost completely cloudless blue sky. In the foreground in front of the houses you can see a lawn with many bushes and a total of four trees, three of which can be seen on the left at the edge of the picture and one tree on the right.

Metering technologies

Advanced technologies for reliable utility tracking and management.

Find out more
The picture shows a bird's eye view of an urban intersection. There are several wide streets that meet in the centre of the picture and form a complex network of traffic routes. Numerous curved, bright blue lines run across these streets, symbolising the flow of data or information exchange. These lines start from different points and concentrate in the centre of the intersection, creating a radial pattern. At the bottom of the picture, several moving cars can be seen travelling along the road. On the left-hand side of the picture is a building with a car park where several cars are parked. On the right-hand side of the picture, tall, modern office buildings with large window fronts are visible, emphasising the urban environment. The blue lines that dominate the image convey a dynamic sense of connectivity and technology, while the underlying urban infrastructure provides the physical basis for this digital exchange.

Data exchange

Secure and hassle-free energy data exchange service made for your business—fast, accurate, and integrated.

A young professional man, wearing glasses and a casual green jacket, is seated at an outdoor café with a laptop open in front of him. He appears thoughtful and focused, with his hand resting on his chin. On the table beside the laptop are a smartphone and a notepad. The background features modern office buildings and greenery. This image conveys a sense of contemplation and productivity, emphasizing the concept of consumption data monitoring in a business environment.

Consumption data monitoring

Enhance property management with real-time energy insights.

The picture shows a modern residential complex with several white, multi-storey residential buildings standing on the left and right side of a paved path. The buildings have balconies with dark railings, and some balconies are decorated with plants and furniture. A wide, paved footpath stretches between the buildings and continues into the distance. On the left side of the path are lush green areas and colourful flowerbeds that embellish the space between the buildings. On the right-hand side of the path, young trees are planted at regular intervals, forming a green avenue together with manicured lawns. Other buildings can be seen in the background, completing the urban surroundings of the residential complex. The sky is clear and blue, indicating a sunny day. Overall, the picture conveys a calm and pleasant living atmosphere in a modern, well-maintained environment.

Heating optimisation

Optimise heating systems for enhanced efficiency and savings.

Take the first step towards legal compliance.

Contact us now

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 mil.
t CO₂ emissions avoided

43 mil.
Radio devices

14 mil.
Utilisation units

Innovative solutions which deliver results.

Our digital solutions are designed to help our clients reduce their environmental impact, improve health and safety in their buildings, and reduce energy costs.

The picture shows a green, wide and tall meadow with large green trees on the edge of the horizon in the upper third of the picture and a girl running through the meadow. From the upper edge in the centre, bright yellow rays of sunlight stretch across the middle of the picture and bathe it in warm light. In the centre of the picture, a little girl in a knee-length, sleeveless white dress is walking across the meadow with her back to the viewer. Her long blonde hair blows away from her body to the left as she moves. In addition, as she runs, her left arm is loosely behind her back and her left foot is bent upwards so that the entire underside of her foot can be seen at the end of her dress.

Be eco-friendly

Green Solutions to make your property sustainable.

The picture shows a young man leaning against a glass railing and holding a small tablet with a white cover in his hand. He is smiling and looking into the distance. The man has short brown hair and a short brown beard and is wearing a beige suit with a white t-shirt underneath. Since the photo was taken from a frog's-eye view, you can see a tall, modern office building made of light-coloured stone with four rows of large windows in the background.

Save money

Embrace the future of energy management, with reduced consumption and improved financial performance at its core.

The picture shows a section of an open laptop from an angle so that only half of the keyboard is visible. A person in a blue shirt, of whom only the hands and arms can be seen, is in the right-hand half of the picture and is typing on the laptop keyboard. The hands and the laptop keyboard are in the centre of the picture and are in focus. To the right of the laptop, a smartphone and a black cup can be seen in a blur. In the background is a window that floods the room with light.

Be in control

Gain full control of your properties through precise data insights and real-time monitoring.