Welcome to ista

Efficient handling of resources is one of the most important topics of our time. As one of the internationally leading companies in the management of energy and water consumption, we expedite the digitalisation of the real estate industry. Our products and services help to increase transparency, efficiency and to reduce C02 emissions. Through smart solutions, we can improve the quality of life of people throughout the world every day.

We offer you a future-oriented and secure job. Become part of our international team of like-minded, forward thinkers and groundbreakers.

We give ideas space

We do so by creating an environment in which people can dare to be bold and in which each idea is given an opportunity to prove itself.

We are international

Our team of 6,000 colleagues works worldwide in more than 20 countries.


We make buildings climate-friendly 

We manage data and processes so that we can make buildings more sustainable and resource-efficient for the future.