Abstract
The law on groups of companies is one of the most complex areas of company law.The difficulty in working out a satisfactory legislative model is caused by the fact that the group structure involves an inescapable collision between contradictory legislative principles.On the one hand companies which make up a group are separate legal persons with liability for obligations limited to their own assets, whereas, on the other hand,they are integrated into a single economic organism following the same strategy, perceived as one entity from the business perspective.The tension between the legal autonomy and economic integrity is a necessary starting point for analyzing all problems of groups of companies.