Be eco-friendly.

Green solutions to make your property sustainable.

Reduce your property's 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.

We are an Energy Service Company (ESCO)

An ESCO is a specialized organization that delivers end-to-end energy solutions. Our services include energy audits, design, implementation of energy conservation measures (ECMs), financing, as well as the operation and maintenance of energy systems.

Our core mission is to improve energy efficiency and reduce energy costs — often with little to no upfront investment required from the client.

We operate under performance-based contracts, meaning our compensation is directly linked to the energy savings achieved. This model aligns our success with our clients’ cost reductions and ensures accountability.

Popular services

ESCO Solution & Services

Achieve greater energy savings and efficiency with our comprehensive energy management and ESCO services, focusing on performance enhancements with no upfront costs through guaranteed savings.

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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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Control and manage

Energy Audit

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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Property improvement

SmartValve Service

Improve system efficiency and control with our smart valve services, using real-time data and automation to optimize flow, reduce energy consumption, and enhance performance.

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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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Compliance Reporting and Billing

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

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Partner with us for a sustainable future — let's discuss your property needs today.

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.