As an independent enterprise, we offer a broad range of consulting, planning, design, construction, communication and IT services. Based at various locations throughout the world, our 500+ employees help our clients to arrive at viable and sustainable solutions to the challenges they face in the areas of urban and rural development.

We have remained committed to the goal of preserving the earth as our only habitat and securing the well-being of future generations. Since 1981, we have worked to secure sustainable development in the context of a larger, caring approach to the future.

We aim to offer our clients innovative, customized and effective solutions to help them meet the challenges of our time. We rely on our local expertise and regional ties, as well as our extensive international experience and competence. Our enterprise has successfully completed projects in more than 70 countries throughout the world.


In Switzerland we recently operate solely from our location in Zurich. Please note our updated contact details.