Logistics is one of the biggest trade volume industry sectors in Germany. External factors of influence are pushing the logistics sector to redesign its processes and operating activities environmentally. In the practical experience methodical tools are missing which help to identify environmental potential for optimization, to evaluate it and to document quantitatively the realized improvement. One possibility to combine the environmental and the financial point of view in intralogistics is demonstrating a novel reference model. With this model weaknesses can be identified and appropriate goals and activities can be defined to improve them. The combination of the reference model with a data base system affords to simulate and to review the effects of the activities just before their operational realization. The application of the reference model and its benefits for the contract logistics enterprises will be characterized in this article.