KölnBusiness – the Economic Development Agency of Cologne | 8,965 followers on LinkedIn. We support your business in Cologne | Resting on the banks of the river Rhine, Cologne is a dynamic and culturally diverse metropolis in the heart of Europe. KölnBusiness, the Economic Development Agency of Cologne, supports you in all matters related to your business affairs in Cologne. We inform, network and mediate in all questions relevant to business and administration.