How can you make money by giving stuff away? Commercial viability based on commons is not a strange concept to the Open Source community. Does commons based peer production only work for software? Can commons based peer production be the basis of business models for such diverse content as music, business data and educational services? Commons enterprises are enterprises structured around the production or delivery of peer produced commons content. How can you reverse-engineer the blue-print of a Common Enterprise? Conceptualizations of Commons Enterprises often revolve around their typology or revenue models. However, a comprehensive analysis of the phenomenon requires an understanding of the flow of “Intellectual Property Rights” vis-à-vis the respective creative contributions and value flows. Our objective is to make such an analysis on the basis of (a) concrete legal agreements Commons Enterprises are based on based on (b) classification of value flows and creative/intellectual property rights allocation on both commercial and non-commercial levels (c) value allocation mechanisms in the form of contribution management (d) presentation of indicative case studies where the aforementioned methodology is applied.