Two people greet each other with a handshake in a modern, urban setting. On the left is a person wearing a long white robe with matching headgear; on the right, a second person in a grey suit can be seen from behind. In the background is a waterfront promenade and water, with blurred modern skyscrapers rising into the sky behind it. The scene looks like a professional meeting or business appointment outdoors and conveys cooperation and intercultural collaboration in an international urban environment.

Be compliant.

Legal compliance: The key to a stress-free property.

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 coverage 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.

We reduce risks and increase opportunities for you.

If you are looking to stay ahead of the curve when it comes to property compliance, look no further. Our digital solutions ensure a smooth and easy process for you to solve all your compliance needs.

Metering and billing services

Close-up of several people at a shared workspace: hands typing on keyboards and operating computer mice on desktop PCs. One person is wearing a yellow knitted jumper and a bracelet; other arms can be seen blurred in the foreground. The scene conveys concentrated work in an office or training room.

Utility Billing

Consolidate all your utility services into one streamlined billing system, simplifying payments and reducing administrative efforts for both property managers and end-users.

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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.

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A hospital corridor with bright ceiling lights and several doors along the walls. Several medical professionals are walking around: some are wearing lab coats, others blue surgical scrubs. In the centre of the image, two people are walking side by side and talking to each other while holding documents in their hands. In the foreground, a nurse is walking down the corridor with a yellow document, while other staff members are moving towards the ward. An exit or orientation sign can be seen at the end of the corridor. The scene conveys a typical day in a hospital with team communication, documentation and movement between treatment areas.

Indoor Air Quality Measurement

Ensure a healthy indoor environment with our advanced air quality measurement solutions, designed to monitor, assess, and optimize air conditions for better health and comfort.

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Manage and report

A service technician wearing an orange safety vest and protective helmet stands in an industrial plant between pipes and machine components. He is holding a tablet in his hand and checking a plant unit at head height, as if he were checking measurements or documenting a maintenance step. In the background, cables, metal beams and other technical installations run along a narrow corridor, and the lighting is reminiscent of a production or technical area. The scene conveys inspection, maintenance and digital documentation of plant operation on site.

Energy Audits

Accredited to perform ASHRAE Level 1, 2, and 3 energy audits by the designated authority.

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The picture shows a light-flooded part of an office space. Two men can be seen sitting at a desk directly in the foreground, stretching from left to right in the lower third of the picture. The man sitting on the left has short, dark brown and curly hair, a brown-red beard, wears round glasses with black frames and a black shirt. The man to his right has almost black short hair, a brownish beard and is wearing a black T-shirt. Both men are looking at the two monitors on the desk in front of them. Both men are looking at the carbon audit provided by ista on these monitors. To the left of the monitors on the desk is a black printer. To the right of the monitors is a telephone and next to it, on the right-hand edge, two letter trays are stacked. In the background you can see a wall consisting of large windows that stretches from the first left third of the picture to the right edge. In addition, the ceiling, which can be seen in the upper part of the picture, also consists of the same large windows. On the right-hand side of the picture, a dark brown, approximately waist-high room divider can be seen, which bends to the right once. Six plants can be seen on the room divider and behind it. To the left of the picture, directly next to the man on the left, is a wall consisting entirely of green plants.

Carbon Audit & Reporting

Assess and reduce your carbon footprint with our carbon audit and reporting services, helping you meet sustainability goals while staying compliant with environmental regulations.

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In a modern open-plan office, a person dressed in traditional white clothing with a head covering sits at a desk holding several printouts. They point to a spot in the document with a pen, as if explaining and highlighting numbers or content. There are more papers on the table; in the background, workstations, monitors and a second seated person can be seen. Concrete ceilings, bright lighting and an open-plan layout convey a professional meeting or examination situation in which documents are reviewed together and decisions are prepared.

Compliance Reporting and Billing

Simplify energy regulations with tailored solutions for accurate energy metering and billing.

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Take the first step towards legal compliance.

Facts & Figures

6,300 employees

20 countries

3.7 mil. t CO₂ emissions avoided

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.

Two children run hand in hand across a sunny lawn in a park. Both are wearing long white robes and light headgear; the scene is shot from behind, so that the movement and running together are in the foreground. Large trees provide shade around them, and palm trees can be seen on the right. In the background, modern high-rise buildings and a bright, clear sky are visible, indicating an urban environment near a green space. The image conveys lightness, togetherness and a carefree moment outdoors.

Be eco-friendly

Reduce your property's carbon footprint and create sustainable living environments with ease. Our solutions offer innovative ways to manage your environmental impact effectively.

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The picture shows a close-up of the keyboard of a laptop, which is illuminated by warm rays of sunlight from the background. The screen of the laptop is on the left edge of the picture and a woman in a dark blue shirt can be seen sitting in a blur on the right edge. Her hands are resting lightly on the keys of the laptop. The background of the picture is very blurred, but you can easily recognise the walls of a room and a window through which the sun's rays shine.

Be in control

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

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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

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

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