One of the greatest challenges of our time is the responsible and careful use of natural resources such as energy and water. As one of the world's leading companies providing energy services for greater energy efficiency in buildings, we help our customers sustainably save energy, CO2 and costs in apartment buildings.

All around the world, ista products and services make individual energy and water consumption in buildings transparent. As a result, individual consumption behaviour becomes tangible  and understandable. And therefore controllable.

Sustainable strategy at its core

Corporate Social Responsibility does not take place on the fringes but at the heart of ista. Our products and services are sustainable to the very core because they help conserve resources. Therefore, the focus of our entire company is very much on sustainability and responsibility.

We continually develop our products and services. For the more energy and costs we save through our work, the more successful we are on the market.

At the same time, we also measure our consumption in our own working environment and try to continually optimise our own resource and materials management. And we motivate our employees to take responsibility for society and the environment, also outside ista.  

Our Sustainability Coordination at ista:

Our Sustainability Coordination at ista:

Sustainability Coordination

The central body in the field of Corporate Social Responsibility is our Sustainability Steering Committee. At ista, the subject of sustainability is the direct responsibility of the Management Board. Two bodies set the strategic guidelines and are in charge of operational implementation. The Sustainability Steering Committee sets the focus and direction of our sustainability engagement. To do this, the heads of strategically relevant departments at the Essen head office, who make up the Sustainability Steering Committee, meet at least twice a year. The Sustainability Council, which consists of delegates from all national organisations, manages and implements sustainability measures. The council also shares ideas from the countries with the Steering Committee. This way we ensure not only that strategy topics are operationally implemented in the countries but also that we get input from the countries for the further development of content.

Compliance is indispensable

It is a fundamental part of ista's culture to interact with the environment and society, with colleagues, customers and other stakeholders in a respectful and careful manner. Transparency is part of our company's DNA. Our cooperation with customers, partners and other stakeholders is characterised by openness, respect and fairness.

The following codes and structures provide us with a clear guide:

Corporate Volunteering programme: grow

Corporate Volunteering programme: grow

The programme

grow enables the implementation of major environmental protection projects with a sustained effect. The Corporate Volunteering (CV) programme focuses on the CV-Days worldwide. Planting trees, renaturation of urban watercourses or energy-saving campaigns – everything is possible and every helping hand counts!

Every employee can propose preventive or active environmental protection projects and thus actively participate at the organization of a CV-Day at his branch.

Furthermore, many of our employees are already involved in the field of environmental education. For example, as environment ambassadors, our employees teach children in a playful way about the core of our business – namely the responsible use of water and heating energy.

grow - What's behind these letters?

Great Respect for our World

  • Great Respect represents the huge importance ista places on the environment and stakeholders
  • Our World establishes the connection to the environment and at the same time points out how international and collective the programme is
  • Grow opens up a whole world relating to the issue of sustainability and replacement (resources), while simultaneously representing the start of the new CV programme
The programme supports projects relating to the following:
  • Active environmental protection (e. g. cleaning rivers and forests or planting trees)
  • Preventative environmental protection (e. g. car-free day at work, "switch -the-light-off" campaign)
  • Education

Environmental management

In order to constantly improve our CO2 balance, ista regularly revises the guidelines on business trips and company cars, offers fuel-saving training courses at its branches and already uses electric vehicles in some countries. We are constantly integrating other measures to reduce paper and energy consumption worldwide in our everyday working lives.

Environmental management at ista is organised Group-wide through the Sustainability Office at the Head Office and the Sustainability Council, which consists of delegates from all national organisations. Central recording of the important key figures regarding energy, emissions, water and materials gives us internal transparency and targeted management. And we are continually optimising the process for collecting key data for our sustainability report.

Management certifications are an integral part of our quality aspiration in the environmental field. Accordingly, we have had our environmental management certified to ISO 14001 in Spain, England and Turkey. At the same time, we comply with the statutory requirements of the European Energy Efficiency Directive with other certifications in some countries: in 2015 we conducted an energy audit in France to DIN EN 16247-1, which is specially geared to the optimisation of energy efficiency. This is also currently taking place in Poland.

In Germany, we set up an energy management system to ISO 50001 in 2016 and acquired the corresponding certification. In doing so, we commit to sustainably reducing our energy consumption and increasing our energy efficiency in a continuous improvement process. Specifically, we are aiming for a continual improvement of energy efficiency by an average of 1.3 % per annum for ista Germany and for ista International in Germany.

For more information, please have a look at our Sustainability Report.
More information about sustainability at ista you will find on our online magazine INSIDEista.


Creating trust by honest reporting

Transparency is part of our company's DNA. As one of the world's leading energy service providers, it is therefore a matter of routine for us to report in an open and transparent way on our total engagement for greater energy efficiency in buildings, sustainability and responsibility.

Our eighth Sustainability Report appeared in 2018. Here we report on progress in the field of sustainability based on the internationally recognised G4.0 Guidelines of the Global Reporting Initiative (GRI). The report is regarded as "Communication on Progress" as part of ista's membership of the Global Compact.

Click here for our latest Sustainability Report.