In recent years research has been rapidly and actively emerging on indicators of environmental performance in industry. Crucial issues are the kind of information that must be taken into account, is available and is relevant, as well as standardization and aggregation of such information. This paper reports on the experience gained in these matters, in the scope of a European Commission funded project involving seven research partners across Europe. Practical applications of the project cover six industrial sectors within six European countries. Exploiting the adopted indicators allows us to draw conclusions about the influence of various factors, including the national context, on environmental performance, and to provide both managers and decision makers with information that is useful for the overall improvement of environmental strategies and environmental regulation. Copyright © 2002 John Wiley & Sons, Ltd. and ERP Environment