Get easily started.

More quality, less effort during development.

Our services are designed to simplify work and make it more accurate. By using innovative technologies and digital services, we simplify work and reduce effort.

Digitalisation makes it more easy.

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ESCO Services

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Multi-Utility Billing

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Metering Technologies

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Best to Property Services.

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Power Optimisation

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EV-Charging

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Energy Management

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Metering Technologies

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Be CO₂ neutral

Easy made Energy Management for Residential Properties.

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Latest Updates for Developers.

Latest Project in Real Estate.

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Read more

The new Software that makes it easy.

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Easily read data remotely.

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Profit from 24/7 Support Service.

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Webinars & Seminars

Partnering with ista means working with trusted experts in energy management who will help you save costs and improve efficiency. With ista, you'll have access to cutting-edge technology and innovative solutions that will future-proof your energy needs.

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.

Webinar: Heat cost allocation and billing easy made

20.10.2025 | 19:00

Webinar: Heating optimisation with Heat Pilot

22.10.2025 | 09:00

The picture shows an intimate moment in a brightly lit room. In the foreground is a couple in a loving embrace in front of a large window. The man is wearing a brown top and beige trousers, while the woman is wearing a light-coloured top and dark trousers. Both people are standing barefoot on a wooden floor, with the man standing slightly behind the woman and embracing her tenderly. The window, which takes up most of the background, allows plenty of natural light into the room and offers a view of a wooded outdoor area. The sunlight streams through the window and creates warm rays of light in the room. To the left of the picture, near the window, is a table attached to a wall. There are two small objects on the table, presumably salt and pepper shakers.  To the right of the window is a large houseplant in a white flower pot. The plant is clearly visible and lends the room a natural atmosphere. In the right-hand part of the picture, further in the background, there is a piece of wooden furniture that looks like a wine rack or a small shelf. There are a number of objects on the shelf, including a framed picture and other decorative items.

Webinar: Smoke alarm detectors save life and protect properties

30.10.2025 | 12:00

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.

Webinar: Chilled water consumption billing and collection

30.10.2025 | 15:00

Most recent Downloads

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Get in touch with us.

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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

43 Mio
Radio devices

14 Mio
Utilisation units