National business interest associations and their behaviour how they organise, mobilize members, aggregate interests, plan access strategies and manage interrelations with public policy decision-makers are influenced by the ongoing worldwide europeanisation of economic and political domains. Initially identified underused potential of the organised business interests by Lithuanian business interest associations confronts the existing scientific notion that business interests are the most organised and active segment of all other interests. The book aims at analysing and explaining, by providing an empirical account, the development, organisation and behaviour of Lithuanian business interest associations at the national and European Union level, and discussing the type of Lithuanian business interest associations one might expect in the future. The book presents the results of the quantitative survey of Lithuanian business interest associations conducted for the first time in Lithuania.