Explorations of the LCA practice have been less numerous compared to the conceptual descriptions of LCA. To counter this imbalance, studies of LCA projects conducted in Swedish industry were carried out. One of them is in a chemical company, the other in an electronics company. The studied LCA projects represent early attempts, but not first attempts, at LCA within these two companies. The two studied cases are contrasted with each other and aspects important for the implementation of LCA are identified. Among other things, the presence of an LCA entrepreneur seems to be important for LCA implementation. The argumentation for the usefulness of LCA needs to be situationally adapted to each organisation. Strategies of the LCA entrepreneur are described.