For already cooperating businesses, a question that often occurs is: which potential cooperation activities under the given conditions can be developed and how can they be evaluated? To the authors’ knowledge, there is no structured and validated procedure for the identification and evaluation of existing cooperation potentials. This usually occurs through a subjective assessment by cooperation experts and is highly dependent on the experience of the persons involved. Therefore a method is presented which makes a structured and valid identification of cooperation potentials in existing inter-company relations possible.