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Pay only for what you use.

Heat metering of communal heating systems.

It is important to us that residents are charged fairly and transparently for their personal energy use. We provide our expertise to > 13m homes and businesses across 22 countries.

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We take responsibility.

Helping you contribute to climate protection.

With all our energy.

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Heat Billing

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Metering Technologies

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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.
Residential utility management.

Simplifying billing services for property owners and residential landlords.

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Check out the latest article and informations to stay in-the-know.

Aston Martin x ista Sustainability Day.

Find out about ista's participation at the Aston Martin Aramco F1 Team's Sustainability Day 2025.

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Meter replacement.

To ensure accurate billing and comply with industry standards, heat and water meters must be replaced every 10 years. Here's everything you need to know.

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Rising energy costs.

Energy prices across the UK have increased significantly in recent years due to wider market conditions. Find out what this means for your bill.

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New country manager UK 2026

After 27 years with ista UK, Alex Philbrook has stepped down as Country Manager, ending an exceptional career dedicated to the growth of the business and its customers in the UK.

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Your energy partner.

Our strength lies in our personalised service, backed up by our market-leading portals, giving our customers 24/7 access to their energy data, on one bespoke platform. With an average customer tenure of more than 12 years, we believe in long-term partnerships that facilitate an efficient and effective energy journey for our customers. We add sustainable value to buildings for their residents and owners. To achieve this, we manage data and processes that make the building climate-friendly, safe and comfortable.

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Your success, our priority.

Our customer-centric commitment: 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.

Reliable partner

As a partner with a proven track record extending beyond six decades, we assure reliability and trust in every collaboration.

One-stop shop

From expert energy advice to seamless installation and ongoing maintenance, we're your all-in-one hub for energy management services.

Sustainability

We specialise in designing and retrofitting buildings to be energy-efficient and future-proof paving the way for a sustainable future.

End-to-end solution

Featuring energy consulting to identify needs, high-quality hardware & software solutions tailored to those needs and professional installs.