About Us

ECOS is a consulting and project development company with 30 years of experience in the German-Japanese context. Our basis is sound knowledge, many years of experience and our well-maintained network.
No matter whether you are planning a project in Japan or want to establish long-term relationships with partners in Japan - we support you in the implementation of your plans.

ECOS was founded in 1988 by Wilhelm Meemken as ECOS Consult GmbH. Wilhelm Meemken, Johanna Schilling and Jürgen Dirkes are the managing directors today.


Today we have a powerful and competent team and an efficient network with experts from Germany and Japan. Our focus is environmental and systems technology, renewable energies as well as resource and energy efficiency.

Our head office is located in Osnabrück. We  also maintain offices in Berlin, Tokyo and Fukuoka. Our partners in Japan support our clients and customers directly on site.

Our business languages are German, Japanese and English.


As a company with a focus on the environment and energy, we also strive for sustainability ourselves! Our company headquarters, the Centrum für Umwelt und Technologie (C.U.T.), is the competence center for companies in the field of environmental protection and resource conservation in Osnabrück. It is equipped with solar panels, green roofs and rainwater utilization. Whenever possible, we travel to the office by public transport and bicycle. We also almost always use the train for business trips within Germany. We have reduced paper consumption in our office to a minimum.


Our team in Osnabrück is taking part in the annual STADTRADELN (city cycling) campaign with enthusiasm.