Our clients
and partners

We work together with private businesses, public institutions, universities and international organizations. We work with clients from diverse sectors because we aim to continuously deepen our understanding of all processes, business plans, interests and values, not only directly related to our clients but across the whole system influencing their business. By aligning our projects with these perspectives, we provide a foundation for our clients and partners to build and maintain better communication and collaboration with all stakeholders.

Meet our
managing director

Ivan Kalc is the founder and managing director at ENEF concept. He is an architect by profession and has received numerous awards and recognitions for solutions addressing environmental and related socio-economic needs and challenges in urban areas. He received his education from universities of technical sciences in Serbia, Norway and Sweden (FTN, NTNU and KTH) and holds two master’s degrees, combining fields of architecture and energy efficiency.