EN
The article encompasses an analysis of non-uniformly concept of joint venture, which is located in co-operative issues, taking Polish and European regulations under consideration. The considerations present three aspects - joint venture as a type of co-operation, the general foundation and the specified form of co-operation. As a type of entities co-operation means co-operation, which aims to attainment a common target under conditions, which ensures common and individual benefit. In this case entities usually incur common risk. As the general basis of the cooperation is the agreement whereby the parties take up cooperate, taking into account the elements relevant to this type of co-operation. As a form of co-operation is a new common structure or non institutional connection. This study has also raised the issue of „joint venture company", which is the only appropriate term for a type of entities co-operation based on the use of elements of construction for companies.