Istema is a specialized engineering and consultancy firm for building technologies and energy. Our mission is to create sustainable value for our clients and their construction projects. We are dedicated to serving Belgian builders and architects with sustainable ambitions by offering a range of services.

Our team of experts blends engineering skills with extensive experience to provide long-term solutions. This commitment to excellence is reflected in our satisfied client base and extensive portfolio of references. Whether you need technical studies, building physics advice, commissioning & optimization, or feasibility studies, Istema has the expertise to meet your needs.

Contact us to collaborate on creating sustainable value together. Visit our website for more information and to explore our services and projects. Let Istema be your partner in building a sustainable future