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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.

Green Solutions to Make Your Property Sustainable.

Reduce your carbon footprint, build a sustainable future, and enhance your property's image. Our SmartTech solutions offer innovative ways to manage your environmental impact effectively.

Your benefits at a glance:

Reduce CO₂ emissions

Achieve Sustainability through Energy Savings

Enhance Property Value

Future-Proof Properties with our Smart Devices

Nationwide Coverage Wherever You Are

Choose ista for the Best in Class Eco-Friendly Solutions and Sustainable Property Management.

By reducing your carbon footprint and implementing sustainable practices, you can save money on utility bills while creating a healthier and more comfortable living environment.

Our services are designed to make green living simple and achievable, with easy-to-implement solutions that create a big impact.

Learn more about our eco-friendly services and join us in our mission to create a better world.

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Our Green Solutions to Increase Energy Efficiency With Innovative SmartTech to Monitor and Reduce Energy Consumption.

Creating a sustainable and healthy environment doesn't have to be difficult – with our eco-friendly solutions, it's easy to make a big impact with small changes!

Services to Make Your Property More Sustainable and Eco-Friendly.

With our comprehensive eco-friendly services, you can take a step towards a sustainable future by efficiently managing your billing and utility expenses. With ista's support, you can have peace of mind and 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

Consumption-based billing with ista optimises and automates the process of heating cost billing and provides residents with an accurate and easy to understand billing.

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The image depicts a man sitting at a round table in a well-lit office space. There is a glass of water and a small espresso cup on the table, adding to the professional yet comfortable atmosphere. The man is smiling and engaged with the water consumption billing from ista on his laptop, taking notes in a notebook. He is wearing a blue button-down shirt and glasses. The background features a flip chart, potted plants, modern furniture, and large windows allowing natural light to flood the room.

Water Billing

We offer a range of services including water submetering, billing, and data analysis, which can help you to optimise water usage and reduce costs for your property.

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Multi Utility Billing

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The Image shows a young man with a dark blue shirt, sitting relaxed on a table right by a window on the right side of the picture. He is smiling while looking outside, because with ista, his electricity billing is simplified and still precise, making it an effortless billing experience.

Electricity Billing

Control electricity costs with precise billing, invoicing, and remote meter management.

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One-Stop Property Management Services.

With our digital services, you can benefit from our experience and expertise in energy management, ensuring your properties are optimized for energy efficiency and cost savings. Our customized approach takes into account the unique needs of each property, ensuring maximum results.

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.

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The picture shows a smiling man holding a tablet on which ista's Energy Management Minute View is displayed. The man has brown hair and is wearing black glasses. He is wearing a beige and grey striped shirt and a blue blazer over it. He is standing in the centre of the picture and looking directly into the camera. A modern office can be seen in the background. On the left-hand side of the picture is a wooden shelf in front of a black wall, decorated with long hanging plants and various objects that give the impression of awards. On the right of the picture, two women are sitting next to each other at a white work table covered with various work items. The woman in front, whose long black hair and beige loose top are visible, rests her arms on the table and has turned her head towards her colleague, so that only the back of her head is visible. The woman next to her has long blonde hair and is wearing a light blue shirt. Her side profile is recognisable. The entire background is blurred so that the focus is on the smiling man with the tablet.

Energy Management

Enhance energy use with 24/7 monitoring and real-time insights.

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ESG Management and CO₂ Reporting

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The picture shows two hands holding a smartphone into the camera frame. On the smartphone is the screen for ista’s Leakage-detection app. The rest of the picture is blurred, but the person who’s holding the phone can be seen to be sitting on the couch at home.

Water Leakage Detection

Automated leakage monitoring to avoid any costly water damage.

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Room Temperature Monitoring

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Partner with Us for a Sustainable Future Let's Discuss Your Property Needs Today.

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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

43 Mio
Radio devices

14 Mio
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 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.

Be Compliant

The Key to a Stress-Free Property.

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The picture shows a brown teddy bear sitting on a cushion by a window and looking out of the window with a brown teddy bunny in his arms. Several rows of houses can be recognised blurred in the window.

Be Safe & Healthy

From hazards to health: How we keep your property safe.

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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.

Be Energy Efficient & Cut Costs

Smart solutions for smarter savings.

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