The picture shows a middle-aged man working in a workshop or studio. He has dark hair, wears glasses and his face is framed by a full, well-groomed grey beard. He wears a dark blue denim shirt and smiles broadly.The man is leaning over a large work table while holding a smartphone in his left hand looking at ista’s operating cost billing  and making notes on the paper with his right hand. There is an open laptop on the table in front of him. Next to the laptop is a blue coffee cup.The background of the workshop is blurred, but you can recognise shelves and tools that indicate a manual or creative activity. The light streaming in from the right through a window illuminates the scene and creates a warm, inviting atmosphere.The man appears focussed and content, which is conveyed by his smile and relaxed posture.

Streamline Your Operating Cost Billing with Our One-Stop Solution.

Consumption-based billing with ista optimizes and automates the process of operation billing for property owners and managers and provides residents with a accurate and easy to understand billing.

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Your benefits at a glance:

Be Compliant with Regulations

Save Money & Be Energy Efficient

Accurate & Transparent Billing

No More On-Site Visits with Remote Metering

Tired of the Same Old Billing Processes That Leave You Frustrated and Wasting Precious Time?

Accurately determining the operating cost used by each resident in a multi-resident property, while navigating the various regulations, can be a complex and time-consuming process.

ista has the right solution for you! Our innovative all-in-one solutions will speed up the process of operating cost billing, saving you valuable time and improving efficiency. With advanced technology and expert guidance at your fingertips, you can rest assured that your billing will always be accurate, transparent, and fully compliant. Say goodbye to the old billing process and hello to hassle-free digital management with ista.

Experience Hassle-Free Heating Cost Allocation in Just a Few Steps.

For property managers, landlords, and residents alike, operation cost billing can be a daunting and time-consuming task. But, by adopting our automated operation cost billing service, billing frustrations can be eradicated and accuracy and transparency can be enhanced. Our automated operation cost billing offers a simple and efficient one-stop solution that eliminates hassles, reduces errors, and saves time, resulting in cost savings for property owners and fair billing for residents.

Make Operation Cost Billing a Breeze.

Enquire Today and Leave the Work to us.

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Optimize Your Operation Cost Billing and Reap the Benefits with Our Services.

Discover the full suite of advantages that come with ista's services. Whether you are overseeing a single property or a portfolio of buildings, ista has the knowledge and know-how to help you increase efficiency while decreasing costs.

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

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Discover more Innovative Solutions to Transform Your Property.

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

Heat and Water Billing

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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.

Leakage Detection

Automated leakage monitoring to avoid any costly water damage.