The thesis is aimed at an analysis of marketing organizations within the frame ot the Common Agricultural Policy. Marketing organizations are one ot the forms of co-operation and these are usually horizontal co-operation, i.e. at the same level ot the logistics chain. This form of co-operation is called marketing organizations or marketing co-operatives in the agrarian sector. Voluntary grouping of farmers into marketing organizations is common both in the Czech Republic and within the whole European Union. To conclud the thesis, it can be said that the existence of co-operation is very important for functioning of agriculture and that agribusiness without any membership in any co-operative association is often very difficult.